UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark One)

x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2025

or

o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from _____ to _____

Commission file number of the issuing entity: 333-227081-03

Central Index Key Number of the issuing entity: 0001786008

CSAIL 2019-C17 Commercial Mortgage Trust

(exact name of the issuing entity as specified in its charter)

Central Index Key Number of the depositor: 0001654060

Credit Suisse Commercial Mortgage Securities Corp.

(exact name of the depositor as specified in its charter)

Central Index Key Number of the sponsor: 0001628601

Column Financial, Inc.

(exact name of the sponsor as specified in its charter)

Central Index Key Number of the sponsor: 0001767304

3650 REIT Loan Funding 1 LLC

(exact name of the sponsor as specified in its charter)

(formerly known as Grass River Real Estate Credit Partners Loan Funding, LLC d/b/a 3650 REIT)

Central Index Key Number of the sponsor: 0001755531

Societe Generale Financial Corporation

(exact name of the sponsor as specified in its charter)

Central Index Key Number of the sponsor: 0001685185

UBS AG New York Branch

(exact name of the sponsor as specified in its charter)

New York
(State or other jurisdiction of
incorporation or organization of

the issuing entity)

38-4123693

38-4123694

38-7221371

(I.R.S. Employer

Identification Numbers)

c/o Computershare Trust Company, National Association, as agent for

Wells Fargo Bank, National Association

as Certificate Administrator

9062 Old Annapolis Road

Columbia, MD

(Address of principal executive offices of the issuing entity)

21045

(Zip Code)

Registrant’s telephone number, including area code:

(212) 272-6858

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
None

Securities registered pursuant to Section 12(g) of the Act: None.

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. o Yes ⌧ No

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. o Yes ⌧ No

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. ⌧ Yes o No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (Section 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

Not applicable.

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer o Accelerated filer o

Non-accelerated filer ⌧ Smaller reporting company o

Emerging growth company o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. o

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. o

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). o Yes ⌧ No

State the aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant’s most recently completed second fiscal quarter.

Not applicable.

Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Section 12, 13 or 15(d) of the Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court. o Yes o No

Not applicable.

Indicate the number of shares outstanding of each of the registrant’s classes of common stock, as of the latest practicable date.

Not applicable.

DOCUMENTS INCORPORATED BY REFERENCE

List hereunder the following documents if incorporated by reference and the Part of the Form 10-K (e.g., Part I, Part II, etc.) into which the document is incorporated: (1) Any annual report to security holders; (2) Any proxy or information statement; and (3) Any prospectus filed pursuant to Rule 424(b) or (c) under the Securities Act of 1933. The listed documents should be clearly described for identification purposes (e.g., annual report to security holders for fiscal year ended December 24, 1980).

Not applicable.

EXPLANATORY NOTES

The Selig Office Portfolio Mortgage Loan, the Farmers Insurance Mortgage Loan, the Renaissance Plano Mortgage Loan and the APX Morristown Mortgage Loan, which constituted approximately 9.4%, 7.5%, 5.6% and 5.0%, respectively, of the asset pool of the issuing entity as of its cut-off date, are each an asset of the issuing entity and are each part of a loan combination that includes the Selig Office Portfolio Mortgage Loan, the Farmers Insurance Mortgage Loan, the Renaissance Plano Mortgage Loan, or the APX Morristown Mortgage Loan and one other pari passu loan, which is not an asset of the issuing entity. These loan combinations, including the Selig Office Portfolio Mortgage Loan, the Farmers Insurance Mortgage Loan, the Renaissance Plano Mortgage Loan and the APX Morristown Mortgage Loan, are being serviced and administered pursuant to the Pooling and Servicing Agreement, which is incorporated by reference as Exhibit 4.1 to this Annual Report on Form 10-K. The Bison Portfolio Mortgage Loan, previously an asset of the issuing entity being serviced under the Pooling and Servicing Agreement, was not an asset of the issuing entity during the reporting period and is omitted from this Annual Report on Form 10-K and will be omitted from subsequent Annual Reports on Form 10-K.

The Exhibit Index describes exhibits provided by certain parties (in their capacities indicated on the Exhibit Index) with respect to the Desert Marketplace Mortgage Loan, which constituted approximately 1.2% of the asset pool of the issuing entity as of its cut-off date. The Desert Marketplace Mortgage Loan is an asset of the issuing entity and is part of a loan combination that includes the Desert Marketplace Mortgage Loan and one other pari passu loan, which is not an asset of the issuing entity. The other pari passu portion of the loan combination was securitized in the CSAIL 2019-C15 Commercial Mortgage Trust transaction, Commission File Number 333-227081-01 (the “CSAIL 2019-C15 Transaction”). This loan combination, including the Desert Marketplace Mortgage Loan, is being serviced and administered pursuant to the pooling and servicing agreement for the CSAIL 2019-C15 Transaction, which is incorporated by reference as Exhibit 4.2 to this Annual Report on Form 10-K.

The Exhibit Index describes exhibits provided by certain parties (in their capacities indicated on the Exhibit Index) with respect to the Great Wolf Lodge Southern California Mortgage Loan, which constituted approximately 2.5% of the asset pool of the issuing entity as of its cut-off date. The Great Wolf Lodge Southern California Mortgage Loan is an asset of the issuing entity and is part of a loan combination that includes the Great Wolf Lodge Southern California Mortgage Loan, five other pari passu loans and one subordinate companion loan, which are not assets of the issuing entity. A pari passu portion of the loan combination was securitized in the Wells Fargo Commercial Mortgage Trust 2019-C50 transaction, Commission File Number 333-226486-05 (the “WFCM 2019-C50 Transaction”). This loan combination, including the Great Wolf Lodge Southern California Mortgage Loan, is being serviced and administered pursuant to the pooling and servicing agreement for the WFCM 2019-C50 Transaction, which is incorporated by reference as Exhibit 4.3 to this Annual Report on Form 10-K.

The Exhibit Index describes exhibits provided by certain parties (in their capacities indicated on the Exhibit Index) with respect to the Grand Canal Shoppes Mortgage Loan, which constituted approximately 3.7% of the asset pool of the issuing entity as of its cut-off date. The Grand Canal Shoppes Mortgage Loan is an asset of the issuing entity and is part of a loan combination that includes the Grand Canal Shoppes Mortgage Loan, twenty-three other pari passu loans and one subordinate companion loan, which are not assets of the issuing entity. A pari passu portion of the loan combination was securitized in the Morgan Stanley Capital I Trust 2019-H7 transaction, Commission File Number 333-227446-05 (the “MSC 2019-H7 Transaction”). This loan combination, including the Grand Canal Shoppes Mortgage Loan, is being serviced and administered pursuant to the pooling and servicing agreement for the MSC 2019-H7 Transaction, which is incorporated by reference as Exhibit 4.4 to this Annual Report on Form 10-K.

The Exhibit Index describes exhibits provided by certain parties (in their capacities indicated on the Exhibit Index) with respect to the ExchangeRight Net Leased Portfolio 28 Mortgage Loan, which constituted approximately 2.5% of the asset pool of the issuing entity as of its cut-off date. The ExchangeRight Net Leased Portfolio 28 Mortgage Loan is an asset of the issuing entity and is part of a loan combination that includes the ExchangeRight Net Leased Portfolio 28 Mortgage Loan and one other pari passu loan, which is not an asset of the issuing entity. The other pari passu portion of the loan combination was securitized in the BBCMS Mortgage Trust 2019-C4 transaction, Commission File Number 333-226850-03 (the “BBCMS 2019-C4 Transaction”). This loan combination, including the ExchangeRight Net Leased Portfolio 28 Mortgage Loan, is being serviced and administered pursuant to the pooling and servicing agreement for the BBCMS 2019-C4 Transaction, which is incorporated by reference as Exhibit 4.5 to this Annual Report on Form 10-K.

The Exhibit Index describes exhibits provided by certain parties (in their capacities indicated on the Exhibit Index) with respect to the Blackmore Marketplace Mortgage Loan, which constituted approximately 1.2% of the asset pool of the issuing entity as of its cut-off date. The Blackmore Marketplace Mortgage Loan is an asset of the issuing entity and is part of a loan combination that includes the Blackmore Marketplace Mortgage Loan and one other pari passu loan, which is not an asset of the issuing entity. This loan combination, including the Blackmore Marketplace Mortgage Loan, was serviced under the Pooling and Servicing Agreement for the issuing entity prior to the closing of the securitization of the other pari passu portion of the Blackmore Marketplace loan combination in the UBS Commercial Mortgage Trust 2019-C17 transaction, Commission File Number 333-227784-04 (the “UBS 2019-C17 Transaction”). After the closing of the UBS 2019-C17 Transaction on October 15, 2019, this loan combination, including the Blackmore Marketplace Mortgage Loan was, and will continue to be, serviced and administered pursuant to the pooling and servicing agreement with respect to the UBS 2019-C17 Transaction, which is incorporated by reference as Exhibit 4.6 to this Annual Report on Form 10-K.

The master servicer of a pooling and servicing agreement or trust and servicing agreement also functions as the primary servicer of the related mortgage loans serviced and administered pursuant to such agreement unless a separate primary servicer is identified herein. If this report does not identify a separate primary servicer, the servicer compliance statement provided by the master servicer under any such agreement also encompasses its responsibilities as primary servicer of the related mortgage loan or mortgage loans.

Midland Loan Services, a Division of PNC Bank, National Association is the master servicer of the mortgage loans serviced under the Pooling and Servicing Agreement and the primary servicer of the Grand Canal Shoppes Mortgage Loan and the Desert Marketplace Mortgage Loan. As a result, Midland Loan Services, a Division of PNC Bank, National Association is a “servicer” as defined in Item 1108(a)(2)(iii) of Regulation AB, in the capacities described above, because it is servicing mortgage loans that constituted 10% or more of the assets of the issuing entity as of its cut-off date. The assessments of compliance with applicable servicing criteria, accountants’ attestation reports and servicer compliance statements delivered by Midland Loan Services, a Division of PNC Bank, National Association in the capacities described above are listed in the Exhibit Index.

3650 REIT Loan Servicing LLC is the special servicer of the mortgage loans serviced under the Pooling and Servicing Agreement and the Desert Marketplace Mortgage Loan. As a result, 3650 REIT Loan Servicing LLC is a “servicer” as defined in Item 1108(a)(2)(iii) of Regulation AB, in the capacities described above, because it is servicing mortgage loans that constituted 10% or more of the assets of the issuing entity as of its cut-off date. The assessments of compliance with applicable servicing criteria, accountants’ attestation reports and servicer compliance statements delivered by 3650 REIT Loan Servicing LLC in the capacities described above are listed in the Exhibit Index.

Wells Fargo Bank, National Association is the certificate administrator of the mortgage loans serviced under the Pooling and Servicing Agreement and primary servicer of the Great Wolf Lodge Southern California Mortgage Loan, the ExchangeRight Net Leased Portfolio 28 Mortgage Loan and the Blackmore Marketplace Mortgage Loan prior to March 1, 2025. As a result, Wells Fargo Bank, National Association is a “servicer” as defined in Item 1108(a)(2)(iii) of Regulation AB, in the capacities described above, because it is servicing mortgage loans that constituted 10% or more of the assets of the issuing entity as of its cut-off date. The assessments of compliance with applicable servicing criteria, accountants’ attestation reports and servicer compliance statements delivered by Wells Fargo Bank, National Association in the capacities described above are listed in the Exhibit Index.

Trimont LLC is the primary servicer of the Great Wolf Lodge Southern California Mortgage Loan, the ExchangeRight Net Leased Portfolio 28 Mortgage Loan and the Blackmore Marketplace Mortgage Loan on and after March 1, 2025. As a result, Trimont LLC is a “servicer” as defined in Item 1108(a)(2)(iii) of Regulation AB, in the capacities described above, because it is servicing mortgage loans that constituted 10% or more of the assets of the issuing entity as of its cut-off date. The assessments of compliance with applicable servicing criteria, accountants’ attestation reports and servicer compliance statements delivered by Trimont LLC in the capacities described above are listed in the Exhibit Index.

Wells Fargo Bank, National Association is the custodian of the mortgage loans serviced under the Pooling and Servicing Agreement, the Grand Canal Shoppes Mortgage Loan, the Great Wolf Lodge Southern California Mortgage Loan, the ExchangeRight Net Leased Portfolio 28 Mortgage Loan, the Blackmore Marketplace Mortgage Loan and the Desert Marketplace Mortgage Loan. As a result, Wells Fargo Bank, National Association is a servicing function participant in the capacities described above, because it is servicing mortgage loans that constituted 5% or more of the assets of the issuing entity as of its cut-off date. The assessments of compliance with applicable servicing criteria and accountants’ attestation reports delivered by Wells Fargo Bank, National Association in the capacities described above are listed in the Exhibit Index.

Park Bridge Lender Services LLC is the operating advisor of the mortgage loans serviced under the Pooling and Servicing Agreement, the Great Wolf Lodge Southern California Mortgage Loan, the ExchangeRight Net Leased Portfolio 28 Mortgage Loan and the Desert Marketplace Mortgage Loan. As a result, Park Bridge Lender Services LLC is a servicing function participant in the capacities described above, because it is servicing mortgage loans that constituted 5% or more of the assets of the issuing entity as of its cut-off date. The assessments of compliance with applicable servicing criteria and accountants’ attestation reports delivered by Park Bridge Lender Services LLC in the capacities described above are listed in the Exhibit Index.

Situs Holdings, LLC is the special servicer of the Great Wolf Lodge Southern California Mortgage Loan and the Grand Canal Shoppes Mortgage Loan. These mortgage loans constitute more than 5%, but less than 10%, of the pool assets of the issuing entity. Therefore, the Depositor included in this Annual Report on Form 10-K an assessment of compliance with applicable servicing criteria for Situs Holdings, LLC and an accountants’ attestation report pursuant to Item 1122 of Regulation AB because Situs Holdings, LLC is servicing more than 5% of the pool assets. However, the Depositor is not required to include in this Annual Report on Form 10-K a servicer compliance statement pursuant to Item 1123 of Regulation AB of Situs Holdings, LLC because Situs Holdings, LLC is an unaffiliated servicer servicing less than 10% of pool assets.

Situs Holdings, LLC is the special servicer of the Great Wolf Lodge Southern California Mortgage Loan and the Grand Canal Shoppes Mortgage Loan, which constituted approximately 3.7% and 2.5%, respectively, of the asset pool of the issuing entity as of its cut-off date. In accordance with the Compliance and Disclosure Interpretations, Section 200.03 (Rules 13a-18 and 15d-18, Servicer’s Assessment of Compliance), this percentage must be reduced pro rata because it was only acting as special servicer of the Grand Canal Shoppes Mortgage Loan from January 1, 2025 to February 19, 2025. As a result, it falls below the de minimis requirements in Item 1122 of Regulation AB and no such assessment or attestation is required. In addition, Situs Holdings, LLC is an unaffiliated party that, as a result of such pro rata reduction of such percentage, is not a “servicer” that meets the criteria in Item 1108(a)(2)(i) through (iii) of Regulation AB and so no servicer compliance statement is required.

Wells Fargo Bank, National Association acts as trustee of the Selig Office Portfolio Mortgage Loan, the Farmers Insurance Mortgage Loan, the Renaissance Plano Mortgage Loan, the APX Morristown Mortgage Loan, the Desert Marketplace Mortgage Loan and the Grand Canal Shoppes Mortgage Loan. Pursuant to the Pooling and Servicing Agreement, the pooling and servicing agreement for the CSAIL 2019-C15 Transaction and the pooling and servicing agreement for the MSC 2019-H7 Transaction, the trustee is required to provide an assessment of compliance with applicable servicing criteria solely with respect to Item 1122(d)(2)(iii) of Regulation AB (regarding advances of funds or guarantees regarding collections, cash flows or distributions, and any interest or other fees charged for such advances, are made, reviewed and approved as specified in the transaction agreements). However, during the reporting period, the trustee did not perform any servicing function with respect to the servicing criteria specified in Item 1122(d)(2)(iii) of Regulation AB. The master servicer or the special servicer, to the extent required, performed the servicing function identified with respect to Item 1122(d)(2)(iii) of Regulation AB, and each such party included Item 1122(d)(2)(iii) of Regulation AB in the assessment of compliance with applicable servicing criteria and accountant’s attestation report for the subject transaction. As a result, this Annual Report on Form 10-K does not include an assessment of compliance with applicable servicing criteria of the trustee. One or more other servicers of the Selig Office Portfolio Mortgage Loan, the Farmers Insurance Mortgage Loan, the Renaissance Plano Mortgage Loan, the APX Morristown Mortgage Loan, the Desert Marketplace Mortgage Loan and the Grand Canal Shoppes Mortgage Loan have delivered one or more assessments of compliance with respect to Item 1122(d)(2)(iii) of Regulation AB.

Wilmington Trust, National Association acts as trustee of the Great Wolf Lodge Southern California Mortgage Loan, the ExchangeRight Net Leased Portfolio 28 Mortgage Loan and the Blackmore Marketplace Mortgage Loan. Pursuant to the pooling and servicing agreement for the WFCM 2019-C50 Transaction, the pooling and servicing agreement for the BBCMS 2019-C4 Transaction and the pooling and servicing agreement for the UBS 2019-C17 Transaction, the trustee is required to provide an assessment of compliance with applicable servicing criteria solely with respect to Item 1122(d)(2)(iii) of Regulation AB (regarding advances of funds or guarantees regarding collections, cash flows or distributions, and any interest or other fees charged for such advances, are made, reviewed and approved as specified in the transaction agreements). However, during the reporting period, the trustee did not perform any servicing function with respect to the servicing criteria specified in Item 1122(d)(2)(iii) of Regulation AB. The master servicer or the special servicer, to the extent required, performed the servicing function identified with respect to Item 1122(d)(2)(iii) of Regulation AB, and each such party included Item 1122(d)(2)(iii) of Regulation AB in the assessment of compliance with applicable servicing criteria and accountant’s attestation report for the subject transaction. As a result, this Annual Report on Form 10-K does not include an assessment of compliance with applicable servicing criteria of the trustee. One or more other servicers of the Great Wolf Lodge Southern California Mortgage Loan, the ExchangeRight Net Leased Portfolio 28 Mortgage Loan and the Blackmore Marketplace Mortgage Loan have delivered one or more assessments of compliance with respect to Item 1122(d)(2)(iii) of Regulation AB.

This Annual Report on Form 10-K includes assessments of compliance with applicable servicing criteria and accountants’ attestation reports from CoreLogic Solutions, LLC. This entity was engaged by each primary servicer of the Great Wolf Lodge Southern California Mortgage Loan, the ExchangeRight Net Leased Portfolio 28 Mortgage Loan and the Blackmore Marketplace Mortgage Loan to remit tax payments received from the escrow accounts of borrowers to local taxing authorities, to report tax amounts due, to verify tax parcel information, and to verify non-escrow tax payments. These servicing functions are included within the servicing criteria set forth in Item 1122(d)(4)(xi) of Regulation AB. Therefore, under the principles-based definition of “servicer” set forth in Item 1101(j) of Regulation AB that looks to the functions that an entity performs, this vendor is a “servicer” for the purposes of Item 1122 of Regulation AB. See Compliance and Disclosure Interpretations, Section 301.01 (Item 1101(j)).

This Annual Report on Form 10-K includes an assessment of compliance with applicable servicing criteria, accountants’ attestation report and servicer compliance statement from Computershare Trust Company, National Association (“CTCNA”). CTCNA was engaged by Wells Fargo Bank, National Association (“Wells Fargo”), in its capacity as certificate administrator and custodian, to perform certain specified servicing functions identified in the assessment of compliance with applicable servicing criteria and accountants’ attestation reports. Wells Fargo engaged CTCNA in connection with the sale of Wells Fargo’s corporate trust services business to CTCNA and its affiliates. Further, under the principles-based definition of “servicer” set forth in Item 1101(j) of Regulation AB that looks to the functions that an entity performs, this party is a “servicer” for the purposes of Item 1123 of Regulation AB. See Compliance and Disclosure Interpretations, Section 301.01 (Item 1101(j)).

The assessments of compliance with applicable servicing criteria, accountants’ attestation reports and servicer compliance statements of the certificate administrator of the Desert Marketplace Mortgage Loan, the Great Wolf Lodge Southern California Mortgage Loan, the Grand Canal Shoppes Mortgage Loan, the ExchangeRight Net Leased Portfolio 28 Mortgage Loan and the Blackmore Marketplace Mortgage Loan are omitted from this Annual Report on Form 10-K as the certificate administrator pursuant to the related pooling and servicing agreement or trust and servicing agreement does not perform any activities that address servicing criteria with respect to the issuing entity and because they are each not a “servicer” that meets the criteria in Item 1108(a)(2)(i) through (iii) of Regulation AB.

With respect to the pari passu loan combinations that include the Great Wolf Lodge Southern California Mortgage Loan, the ExchangeRight Net Leased Portfolio 28 Mortgage Loan, the Blackmore Marketplace Mortgage Loan and the Grand Canal Shoppes Mortgage Loan, (i) the reports on assessment of compliance with servicing criteria and attestation reports on assessment of compliance with servicing criteria of Green Loan Services LLC, as special servicer of the Grand Canal Shoppes Mortgage Loan on and after February 20, 2025, Pentalpha Surveillance LLC as operating advisor of the Grand Canal Shoppes Mortgage Loan and the Blackmore Marketplace Mortgage Loan and Rialto Capital Advisors, LLC as special servicer of the ExchangeRight Net Leased Portfolio 28 Mortgage Loan and the Blackmore Marketplace Mortgage Loan, listed on the Exhibit Index are omitted from this Annual Report on Form 10-K as they are not required to be included on this Annual Report on Form 10-K per Instruction 3 to Item 1122 of Regulation AB because they are parties performing activities that address servicing criteria relating to 5% or less of the assets of the issuing entity, and the report on assessment of compliance with servicing criteria and attestation report on assessment of compliance with servicing criteria of Situs Holdings, LLC as special servicer of the Great Wolf Lodge Southern California Mortgage Loan and the special servicer of the Grand Canal Shoppes Mortgage Loan prior to February 20, 2025 listed on the Exhibit Index are omitted from this Annual Report on Form 10-K for the reasons set forth in the Explanatory Notes above; and (ii) the servicer compliance statements of Green Loan Services LLC, as special servicer of the Grand Canal Shoppes Mortgage Loan on and after February 20, 2025, Situs Holdings, LLC as special servicer of the Great Wolf Lodge Southern California Mortgage Loan and the special servicer of the Grand Canal Shoppes Mortgage Loan prior to February 20, 2025 and Rialto Capital Advisors, LLC as special servicer of the ExchangeRight Net Leased Portfolio 28 Mortgage Loan and the Blackmore Marketplace Mortgage Loan, listed on the Exhibit Index are omitted from this Annual Report on Form 10-K as they are not required by Item 1123 of Regulation AB to be included on this Annual Report on Form 10-K because they are each an unaffiliated party that is not a “servicer” that meets the criteria in Item 1108(a)(2)(i) through (iii) of Regulation AB.

PART I

Item 1. Business.

Omitted.

Item 1A. Risk Factors.

Omitted.

Item 1B. Unresolved Staff Comments.

None.

Item 1C. Cybersecurity.

Omitted.

Item 2. Properties.

Omitted.

Item 3. Legal Proceedings.

Omitted.

Item 4. Mine Safety Disclosures.

Not applicable.

PART II

Omitted.

Item 6.

[Reserved].

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

Omitted.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk.

Omitted.

Item 8. Financial Statements and Supplementary Data.

Omitted.

Item 9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosure.

Omitted.

Item 9A. Controls and Procedures.

Omitted.

Item 9B. Other Information.

None.

Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections.

None.

PART III

Item 10. Directors, Executive Officers and Corporate Governance.

Omitted.

Item 11. Executive Compensation.

Omitted.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.

Omitted.

Item 14. Principal Accountant Fees and Services.

Omitted.

ADDITIONAL DISCLOSURE ITEMS FOR REGULATION AB

Item 1112(b) of Regulation AB, Significant Obligor Financial Information.

No single obligor represents 10% or more of the pool assets held by the issuing entity.

Item 1114(b)(2) of Regulation AB, Significant Enhancement Provider Financial Information.

No entity or group of affiliated entities provides any external credit enhancement or other support for the certificates within this transaction as described under Item 1114(a) of Regulation AB.

Item 1115(b) of Regulation AB, Certain Derivatives Instruments (Financial Information).

No entity or group of affiliated entities provides any derivative instruments or other support for the certificates within this transaction as described under Item 1115 of Regulation AB.

Item 1117 of Regulation AB, Legal Proceedings.

The registrant knows of no material pending legal proceeding involving the trust or any party related to the trust, other than routine litigation incidental to the duties of those respective parties.

Item 1119 of Regulation AB, Affiliations and Certain Relationships and Related Transactions.

The information regarding this Item has been previously provided in the prospectus of the Registrant relating to the issuing entity filed on September 25, 2019 pursuant to Rule 424(b)(2).

Item 1122 of Regulation AB, Compliance with Applicable Servicing Criteria.

The reports on assessments of compliance with the servicing criteria for asset-backed securities and related attestation reports on such assessments of compliance with respect to the mortgage loans are attached hereto under Item 15 to this Annual Report on Form 10-K. Attached as Exhibit AA to the Pooling and Servicing Agreement incorporated by reference as Exhibit 4.1 to this Annual Report on Form 10-K is a chart identifying the entities participating in a servicing function for the transaction responsible for each applicable servicing criteria set forth in Item 1122(d).

The reports on assessments of compliance with the servicing criteria for asset-backed securities and related attestation reports on such assessments of compliance with respect to the Desert Marketplace Mortgage Loan, which is being serviced and administered pursuant to the pooling and servicing agreement for the CSAIL 2019-C15 Transaction, are attached hereto under Item 15 to this Annual Report on Form 10-K. Attached as Exhibit AA to the pooling and servicing agreement for the CSAIL 2019-C15 Transaction incorporated by reference as Exhibit 4.2 to this Annual Report on Form 10-K is a chart identifying the entities participating in a servicing function for the CSAIL 2019-C15 Transaction responsible for each applicable servicing criteria set forth in Item 1122(d).

The reports on assessments of compliance with the servicing criteria for asset-backed securities and related attestation reports on such assessments of compliance with respect to the Great Wolf Lodge Southern California Mortgage Loan, which is being serviced and administered pursuant to the pooling and servicing agreement for the WFCM 2019-C50 Transaction, are attached hereto under Item 15 to this Annual Report on Form 10-K. Attached as Exhibit AA to the pooling and servicing agreement for the WFCM 2019-C50 Transaction incorporated by reference as Exhibit 4.3 to this Annual Report on Form 10-K is a chart identifying the entities participating in a servicing function for the WFCM 2019-C50 Transaction responsible for each applicable servicing criteria set forth in Item 1122(d).

The reports on assessments of compliance with the servicing criteria for asset-backed securities and related attestation reports on such assessments of compliance with respect to the Grand Canal Shoppes Mortgage Loan, which is being serviced and administered pursuant to the pooling and servicing agreement for the MSC 2019-H7 Transaction, are attached hereto under Item 15 to this Annual Report on Form 10-K. Attached as Exhibit AA to the pooling and servicing agreement for the MSC 2019-H7 Transaction incorporated by reference as Exhibit 4.4 to this Annual Report on Form 10-K is a chart identifying the entities participating in a servicing function for the MSC 2019-H7 Transaction responsible for each applicable servicing criteria set forth in Item 1122(d).

The reports on assessments of compliance with the servicing criteria for asset-backed securities and related attestation reports on such assessments of compliance with respect to the ExchangeRight Net Leased Portfolio 28 Mortgage Loan, which is being serviced and administered pursuant to the pooling and servicing agreement for the BBCMS 2019-C4 Transaction, are attached hereto under Item 15 to this Annual Report on Form 10-K. Attached as Exhibit AA to the pooling and servicing agreement for the BBCMS 2019-C4 Transaction incorporated by reference as Exhibit 4.5 to this Annual Report on Form 10-K is a chart identifying the entities participating in a servicing function for the BBCMS 2019-C4 Transaction responsible for each applicable servicing criteria set forth in Item 1122(d).

The reports on assessments of compliance with the servicing criteria for asset-backed securities and related attestation reports on such assessments of compliance with respect to the Blackmore Marketplace Mortgage Loan, which is being serviced and administered pursuant to the pooling and servicing agreement for the UBS 2019-C17 Transaction, are attached hereto under Item 15 to this Annual Report on Form 10-K. Attached as Exhibit Z to the pooling and servicing agreement for the UBS 2019-C17 Transaction incorporated by reference as Exhibit 4.6 to this Annual Report on Form 10-K is a chart identifying the entities participating in a servicing function for the UBS 2019-C17 Transaction responsible for each applicable servicing criteria set forth in Item 1122(d).

Item 1123 of Regulation AB, Servicer Compliance Statement.

The servicer compliance statements are attached as Exhibits to this Annual Report on Form 10-K.

PART IV

Item 15. Exhibits and Financial Statement Schedules.

(a) The following is a list of documents filed as part of this Annual Report on Form 10-K:

(1) Not applicable

(2) Not applicable

(3) See below

4.1 Pooling and Servicing Agreement, dated as of September 1, 2019, by and among Credit Suisse Commercial Mortgage Securities Corp., as Depositor, Midland Loan Services, a Division of PNC Bank, National Association, as Master Servicer and as Special Servicer, Wells Fargo Bank, National Association, as Certificate Administrator and as Trustee, and Park Bridge Lender Services LLC, as Operating Advisor and Asset Representations Reviewer (filed as Exhibit 4.1 to the registrant’s Current Report on Form 8-K filed on September 25, 2019 under Commission File No. 333-227081-03 and incorporated by reference herein).

4.2 Pooling and Servicing Agreement, dated as of March 1, 2019, by and among Credit Suisse Commercial Mortgage Securities Corp., as Depositor, Midland Loan Services, a Division of PNC Bank, National Association, as Master Servicer and as Special Servicer, Wells Fargo Bank, National Association, as Certificate Administrator and as Trustee, and Park Bridge Lender Services LLC, as Operating Advisor and Asset Representations Reviewer (filed as Exhibit 4.5 to the registrant’s Current Report on Form 8-K filed on September 25, 2019 under Commission File No. 333-227081-03 and incorporated by reference herein).

4.3 Pooling and Servicing Agreement, dated as of May 1, 2019, by and among Wells Fargo Commercial Mortgage Securities, Inc., as Depositor, Wells Fargo Bank, National Association, as Master Servicer, Rialto Capital Advisors, LLC, as Special Servicer, Wells Fargo Bank, National Association, as Certificate Administrator, Wilmington Trust, National Association, as Trustee, and Park Bridge Lender Services LLC, as Operating Advisor and Asset Representations Reviewer (filed as Exhibit 4.3 to the registrant’s Current Report on Form 8-K filed on September 25, 2019 under Commission File No. 333-227081-03 and incorporated by reference herein).

4.4 Pooling and Servicing Agreement, dated as of July 1, 2019, by and among Morgan Stanley Capital I Inc., as Depositor, Midland Loan Services, a Division of PNC Bank, National Association, as Master Servicer, LNR Partners, LLC, as Special Servicer, Wells Fargo Bank, National Association, as Certificate Administrator and Trustee, and Pentalpha Surveillance LLC, as Operating Advisor and Asset Representations Reviewer (filed as Exhibit 4.2 to the registrant’s Current Report on Form 8-K filed on September 25, 2019 under Commission File No. 333-227081-03 and incorporated by reference herein).

4.5 Pooling and Servicing Agreement, dated as of August 1, 2019, by and among Barclays Commercial Mortgage Securities LLC, as Depositor, Wells Fargo Bank, National Association, as Master Servicer, Rialto Capital Advisors, LLC, as Special Servicer, Wells Fargo Bank, National Association, as Certificate Administrator, Wilmington Trust, National Association, as Trustee, and Park Bridge Lender Services LLC, as Operating Advisor and Asset Representations Reviewer (filed as Exhibit 4.4 to the registrant’s Current Report on Form 8-K filed on September 25, 2019 under Commission File No. 333-227081-03 and incorporated by reference herein).

4.6 Pooling and Servicing Agreement, dated as of October 1, 2019, by and among UBS Commercial Mortgage Securitization Corp., as Depositor, Wells Fargo Bank, National Association, as Master Servicer, Rialto Capital Advisors, LLC, as Special Servicer, Wells Fargo Bank, National Association, as Certificate Administrator, Wilmington Trust, National Association, as Trustee, and Pentalpha Surveillance LLC, as Operating Advisor and Asset Representations Reviewer (filed as Exhibit 4.1 to the registrant’s Current Report on Form 8-K filed on October 16, 2019 under Commission File No. 333-227081-03 and incorporated by reference herein).

4.7 Agreement Between Note Holders, dated as of September 4, 2019, by and between Grass River Warehouse Facility Entity One, LLC, as Initial Note A-1 Holder, and Grass River Warehouse Facility Entity One, LLC, as Initial Note A-2 Holder (filed as Exhibit 4.6 to the registrant’s Current Report on Form 8-K filed on September 25, 2019 under Commission File No. 333-227081-03 and incorporated by reference herein).

4.8 Agreement Between Note Holders, dated as of August 27, 2019, by and between Column Financial, Inc., as Initial Note A-1 Holder, and Column Financial, Inc., Initial Note A-2 Holder (filed as Exhibit 4.7 to the registrant’s Current Report on Form 8-K filed on September 25, 2019 under Commission File No. 333-227081-03 and incorporated by reference herein).

4.9 Agreement Between Note Holders, dated as of September 4, 2019, by and between Grass River Warehouse Facility Entity One, LLC, as Initial Note A-1 Holder, and Grass River Warehouse Facility Entity One, LLC, as Initial Note A-2 Holder (filed as Exhibit 4.8 to the registrant’s Current Report on Form 8-K filed on September 25, 2019 under Commission File No. 333-227081-03 and incorporated by reference herein).

4.10 Agreement Between Note Holders, dated as of September 5, 2019, by ad between Grass River Warehouse Facility Entity One, LLC, as Initial Note A-1 Holder, and Grass River Warehouse Facility Entity One, LLC, as Initial Note A-2 Holder (filed as Exhibit 4.9 to the registrant’s Current Report on Form 8-K filed on September 25, 2019 under Commission File No. 333-227081-03 and incorporated by reference herein).

4.11 Agreement Between Noteholders, dated as of July 3, 2019, between Morgan Stanley Bank, N.A., as Note A-1 Holder, Wells Fargo Bank, National Association, as Note A-2 Holder, JPMorgan Chase Bank, National Association, as Note A-3 Holder, Goldman Sachs Bank USA, as Note A-4 Holder, and CPPIB Credit Investments II Inc., as Note B Holder (filed as Exhibit 4.10 to the registrant’s Current Report on Form 8-K filed on September 25, 2019 under Commission File No. 333-227081-03 and incorporated by reference herein).

4.12 Amended and Restated Co-Lender Agreement, dated as of March 15, 2019 by and between Wells Fargo Bank, National Association, as Note A-1 Holder, Wells Fargo Bank, National Association, as Note A-2 Holder, Wells Fargo Bank, National Association, as Note A-3 Holder, Column Financial, Inc., as Note A-4 Holder, Wells Fargo Bank, National Association, as Note A-5 Holder, and KSL Capital Partners Co Trust II, as Note B-1 Holder (filed as Exhibit 4.12 to the registrant’s Current Report on Form 8-K filed on September 25, 2019 under Commission File No. 333-227081-03 and incorporated by reference herein).

4.13 Agreement Between Note Holders, dated as of August 28, 2019, by and among Societe Generale Financial Corporation, as Initial Note A-1 Holder, Societe Generale Financial Corporation, as Initial Note A-2 Holder, and Societe Generale Financial Corporation, as Initial Note A-3 Holder (filed as Exhibit 4.13 to the registrant’s Current Report on Form 8-K filed on September 25, 2019 under Commission File No. 333-227081-03 and incorporated by reference herein).

4.14 Agreement Between Note Holders, dated as of September 25, 2019, by and between UBS AG, by and through its branch office at 1285 Avenue of the Americas, New York, New York, as Initial Note A-1 Holder and Initial Note A-2 Holder (filed as Exhibit 4.14 to the registrant’s Current Report on Form 8-K filed on September 25, 2019 under Commission File No. 333-227081-03 and incorporated by reference herein).

4.15 Agreement Between Note Holders, dated as of February 7, 2019, by and between Grass River Warehouse Facility Entity One, LLC, as Initial Note A-1 Holder, and Grass River Warehouse Facility Entity One, LLC, as Initial Note A-2 Holder (filed as Exhibit 4.15 to the registrant’s Current Report on Form 8-K filed on September 25, 2019 under Commission File No. 333-227081-03 and incorporated by reference herein).

31 Rule 13a-14(d)/15d-14(d) Certifications.

33 Reports on assessment of compliance with servicing criteria for asset-backed securities.

33.1 Midland Loan Services, a Division of PNC Bank, National Association, as Master Servicer

33.2 3650 REIT Loan Servicing LLC, as Special Servicer

33.3 Wells Fargo Bank, National Association, as Trustee and Certificate Administrator

33.4 Wells Fargo Bank, National Association, as Custodian

33.5 Park Bridge Lender Services LLC, as Operating Advisor

33.6 Computershare Trust Company, National Association, as Servicing Function Participant for the Certificate Administrator

33.7 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian

33.8 Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the Selig Office Portfolio Mortgage Loan (see Exhibit 33.1)

33.9 3650 REIT Loan Servicing LLC, as Special Servicer of the Selig Office Portfolio Mortgage Loan (see Exhibit 33.2)

33.10 Wells Fargo Bank, National Association, as Trustee of the Selig Office Portfolio Mortgage Loan (Omitted. See Explanatory Notes.)

33.11 Wells Fargo Bank, National Association, as Custodian of the Selig Office Portfolio Mortgage Loan (see Exhibit 33.4)

33.12 Park Bridge Lender Services LLC, as Operating Advisor of the Selig Office Portfolio Mortgage Loan (see Exhibit 33.5)

33.13 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 33.7)

33.14 Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the Farmers Insurance Mortgage Loan (see Exhibit 33.1)

33.15 3650 REIT Loan Servicing LLC, as Special Servicer of the Farmers Insurance Mortgage Loan (see Exhibit 33.2)

33.16 Wells Fargo Bank, National Association, as Trustee of the Farmers Insurance Mortgage Loan (Omitted. See Explanatory Notes.)

33.17 Wells Fargo Bank, National Association, as Custodian of the Farmers Insurance Mortgage Loan (see Exhibit 33.4)

33.18 Park Bridge Lender Services LLC, as Operating Advisor of the Farmers Insurance Mortgage Loan (see Exhibit 33.5)

33.19 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 33.7)

33.20 Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the Renaissance Plano Mortgage Loan (see Exhibit 33.1)

33.21 3650 REIT Loan Servicing LLC, as Special Servicer of the Renaissance Plano Mortgage Loan (see Exhibit 33.2)

33.22 Wells Fargo Bank, National Association, as Trustee of the Renaissance Plano Mortgage Loan (Omitted. See Explanatory Notes.)

33.23 Wells Fargo Bank, National Association, as Custodian of the Renaissance Plano Mortgage Loan (see Exhibit 33.4)

33.24 Park Bridge Lender Services LLC, as Operating Advisor of the Renaissance Plano Mortgage Loan (see Exhibit 33.5)

33.25 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 33.7)

33.26 Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the APX Morristown Mortgage Loan (see Exhibit 33.1)

33.27 3650 REIT Loan Servicing LLC, as Special Servicer of the APX Morristown Mortgage Loan (see Exhibit 33.2)

33.28 Wells Fargo Bank, National Association, as Trustee of the APX Morristown Mortgage Loan (Omitted. See Explanatory Notes.)

33.29 Wells Fargo Bank, National Association, as Custodian of the APX Morristown Mortgage Loan (see Exhibit 33.4)

33.30 Park Bridge Lender Services LLC, as Operating Advisor of the APX Morristown Mortgage Loan (see Exhibit 33.5)

33.31 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 33.7)

33.32 Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the Desert Marketplace Mortgage Loan (see Exhibit 33.1)

33.33 3650 REIT Loan Servicing LLC, as Special Servicer of the Desert Marketplace Mortgage Loan (see Exhibit 33.2)

33.34 Wells Fargo Bank, National Association, as Trustee of the Desert Marketplace Mortgage Loan (Omitted. See Explanatory Notes.)

33.35 Wells Fargo Bank, National Association, as Custodian of the Desert Marketplace Mortgage Loan (see Exhibit 33.4)

33.36 Park Bridge Lender Services LLC, as Operating Advisor of the Desert Marketplace Mortgage Loan (see Exhibit 33.5)

33.37 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 33.7)

33.38 Wells Fargo Bank, National Association , as Primary Servicer of the Great Wolf Lodge Southern California Mortgage Loan prior to March 1, 2025

33.39 Trimont LLC, as Primary Servicer of the Great Wolf Lodge Southern California Mortgage Loan on and after March 1, 2025

33.40 Situs Holdings, LLC, as Special Servicer of the Great Wolf Lodge Southern California Mortgage Loan (Omitted. See Explanatory Notes.)

33.41 Wilmington Trust, National Association, as Trustee of the Great Wolf Lodge Southern California Mortgage Loan (Omitted. See Explanatory Notes.)

33.42 Wells Fargo Bank, National Association, as Custodian of the Great Wolf Lodge Southern California Mortgage Loan (see Exhibit 33.4)

33.43 Park Bridge Lender Services LLC, as Operating Advisor of the Great Wolf Lodge Southern California Mortgage Loan (see Exhibit 33.5)

33.44 CoreLogic Solutions, LLC, as Servicing Function Participant of the Great Wolf Lodge Southern California Mortgage Loan

33.45 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 33.7)

33.46 Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the Grand Canal Shoppes Mortgage Loan (see Exhibit 33.1)

33.47 Situs Holdings, LLC, as Special Servicer of the Grand Canal Shoppes Mortgage Loan prior to February 20, 2025 (Omitted. See Explanatory Notes.)

33.48 Green Loan Services LLC, as Special Servicer of the Grand Canal Shoppes Mortgage Loan on and after February 20, 2025 (Omitted. See Explanatory Notes.)

33.49 Wells Fargo Bank, National Association, as Trustee of the Grand Canal Shoppes Mortgage Loan (Omitted. See Explanatory Notes.)

33.50 Wells Fargo Bank, National Association, as Custodian of the Grand Canal Shoppes Mortgage Loan (see Exhibit 33.4)

33.51 Pentalpha Surveillance LLC, as Operating Advisor of the Grand Canal Shoppes Mortgage Loan (Omitted. See Explanatory Notes.)

33.52 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 33.7)

33.53 Wells Fargo Bank, National Association , as Primary Servicer of the ExchangeRight Net Leased Portfolio 28 Mortgage Loan prior to March 1, 2025 (see Exhibit 33.38)

33.54 Trimont LLC, as Primary Servicer of the ExchangeRight Net Leased Portfolio 28 Mortgage Loan on and after March 1, 2025 (see Exhibit 33.39)

33.55 Rialto Capital Advisors, LLC, as Special Servicer of the ExchangeRight Net Leased Portfolio 28 Mortgage Loan (Omitted. See Explanatory Notes.)

33.56 Wilmington Trust, National Association, as Trustee of the ExchangeRight Net Leased Portfolio 28 Mortgage Loan (Omitted. See Explanatory Notes.)

33.57 Wells Fargo Bank, National Association, as Custodian of the ExchangeRight Net Leased Portfolio 28 Mortgage Loan (see Exhibit 33.4)

33.58 Park Bridge Lender Services LLC, as Operating Advisor of the ExchangeRight Net Leased Portfolio 28 Mortgage Loan (see Exhibit 33.5)

33.59 CoreLogic Solutions, LLC, as Servicing Function Participant of the ExchangeRight Net Leased Portfolio 28 Mortgage Loan (see Exhibit 33.44)

33.60 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 33.7)

33.61 Wells Fargo Bank, National Association , as Primary Servicer of the Blackmore Marketplace Mortgage Loan prior to March 1, 2025 (see Exhibit 33.38)

33.62 Trimont LLC, as Primary Servicer of the Blackmore Marketplace Mortgage Loan on and after March 1, 2025 (see Exhibit 33.39)

33.63 Rialto Capital Advisors, LLC, as Special Servicer of the Blackmore Marketplace Mortgage Loan (Omitted. See Explanatory Notes.)

33.64 Wilmington Trust, National Association, as Trustee of the Blackmore Marketplace Mortgage Loan (Omitted. See Explanatory Notes.)

33.65 Wells Fargo Bank, National Association, as Custodian of the Blackmore Marketplace Mortgage Loan (see Exhibit 33.4)

33.66 Pentalpha Surveillance LLC, as Operating Advisor of the Blackmore Marketplace Mortgage Loan (Omitted. See Explanatory Notes.)

33.67 CoreLogic Solutions, LLC, as Servicing Function Participant of the Blackmore Marketplace Mortgage Loan (see Exhibit 33.44)

33.68 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 33.7)

34 Attestation reports on assessment of compliance with servicing criteria for asset-backed securities.

34.1 Midland Loan Services, a Division of PNC Bank, National Association, as Master Servicer

34.2 3650 REIT Loan Servicing LLC, as Special Servicer

34.3 Wells Fargo Bank, National Association, as Trustee and Certificate Administrator

34.4 Wells Fargo Bank, National Association, as Custodian

34.5 Park Bridge Lender Services LLC, as Operating Advisor

34.6 Computershare Trust Company, National Association, as Servicing Function Participant for the Certificate Administrator

34.7 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian

34.8 Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the Selig Office Portfolio Mortgage Loan (see Exhibit 34.1)

34.9 3650 REIT Loan Servicing LLC, as Special Servicer of the Selig Office Portfolio Mortgage Loan (see Exhibit 34.2)

34.10 Wells Fargo Bank, National Association, as Trustee of the Selig Office Portfolio Mortgage Loan (Omitted. See Explanatory Notes.)

34.11 Wells Fargo Bank, National Association, as Custodian of the Selig Office Portfolio Mortgage Loan (see Exhibit 34.4)

34.12 Park Bridge Lender Services LLC, as Operating Advisor of the Selig Office Portfolio Mortgage Loan (see Exhibit 34.5)

34.13 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 34.7)

34.14 Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the Farmers Insurance Mortgage Loan (see Exhibit 34.1)

34.15 3650 REIT Loan Servicing LLC, as Special Servicer of the Farmers Insurance Mortgage Loan (see Exhibit 34.2)

34.16 Wells Fargo Bank, National Association, as Trustee of the Farmers Insurance Mortgage Loan (Omitted. See Explanatory Notes.)

34.17 Wells Fargo Bank, National Association, as Custodian of the Farmers Insurance Mortgage Loan (see Exhibit 34.4)

34.18 Park Bridge Lender Services LLC, as Operating Advisor of the Farmers Insurance Mortgage Loan (see Exhibit 34.5)

34.19 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 34.7)

34.20 Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the Renaissance Plano Mortgage Loan (see Exhibit 34.1)

34.21 3650 REIT Loan Servicing LLC, as Special Servicer of the Renaissance Plano Mortgage Loan (see Exhibit 34.2)

34.22 Wells Fargo Bank, National Association, as Trustee of the Renaissance Plano Mortgage Loan (Omitted. See Explanatory Notes.)

34.23 Wells Fargo Bank, National Association, as Custodian of the Renaissance Plano Mortgage Loan (see Exhibit 34.4)

34.24 Park Bridge Lender Services LLC, as Operating Advisor of the Renaissance Plano Mortgage Loan (see Exhibit 34.5)

34.25 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 34.7)

34.26 Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the APX Morristown Mortgage Loan (see Exhibit 34.1)

34.27 3650 REIT Loan Servicing LLC, as Special Servicer of the APX Morristown Mortgage Loan (see Exhibit 34.2)

34.28 Wells Fargo Bank, National Association, as Trustee of the APX Morristown Mortgage Loan (Omitted. See Explanatory Notes.)

34.29 Wells Fargo Bank, National Association, as Custodian of the APX Morristown Mortgage Loan (see Exhibit 34.4)

34.30 Park Bridge Lender Services LLC, as Operating Advisor of the APX Morristown Mortgage Loan (see Exhibit 34.5)

34.31 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 34.7)

34.32 Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the Desert Marketplace Mortgage Loan (see Exhibit 34.1)

34.33 3650 REIT Loan Servicing LLC, as Special Servicer of the Desert Marketplace Mortgage Loan (see Exhibit 34.2)

34.34 Wells Fargo Bank, National Association, as Trustee of the Desert Marketplace Mortgage Loan (Omitted. See Explanatory Notes.)

34.35 Wells Fargo Bank, National Association, as Custodian of the Desert Marketplace Mortgage Loan (see Exhibit 34.4)

34.36 Park Bridge Lender Services LLC, as Operating Advisor of the Desert Marketplace Mortgage Loan (see Exhibit 34.5)

34.37 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 34.7)

34.38 Wells Fargo Bank, National Association , as Primary Servicer of the Great Wolf Lodge Southern California Mortgage Loan prior to March 1, 2025

34.39 Trimont LLC, as Primary Servicer of the Great Wolf Lodge Southern California Mortgage Loan on and after March 1, 2025

34.40 Situs Holdings, LLC, as Special Servicer of the Great Wolf Lodge Southern California Mortgage Loan (Omitted. See Explanatory Notes.)

34.41 Wilmington Trust, National Association, as Trustee of the Great Wolf Lodge Southern California Mortgage Loan (Omitted. See Explanatory Notes.)

34.42 Wells Fargo Bank, National Association, as Custodian of the Great Wolf Lodge Southern California Mortgage Loan (see Exhibit 34.4)

34.43 Park Bridge Lender Services LLC, as Operating Advisor of the Great Wolf Lodge Southern California Mortgage Loan (see Exhibit 34.5)

34.44 CoreLogic Solutions, LLC, as Servicing Function Participant of the Great Wolf Lodge Southern California Mortgage Loan

34.45 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 34.7)

34.46 Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the Grand Canal Shoppes Mortgage Loan (see Exhibit 34.1)

34.47 Situs Holdings, LLC, as Special Servicer of the Grand Canal Shoppes Mortgage Loan prior to February 20, 2025 (Omitted. See Explanatory Notes.)

34.48 Green Loan Services LLC, as Special Servicer of the Grand Canal Shoppes Mortgage Loan on and after February 20, 2025 (Omitted. See Explanatory Notes.)

34.49 Wells Fargo Bank, National Association, as Trustee of the Grand Canal Shoppes Mortgage Loan (Omitted. See Explanatory Notes.)

34.50 Wells Fargo Bank, National Association, as Custodian of the Grand Canal Shoppes Mortgage Loan (see Exhibit 34.4)

34.51 Pentalpha Surveillance LLC, as Operating Advisor of the Grand Canal Shoppes Mortgage Loan (Omitted. See Explanatory Notes.)

34.52 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 34.7)

34.53 Wells Fargo Bank, National Association , as Primary Servicer of the ExchangeRight Net Leased Portfolio 28 Mortgage Loan prior to March 1, 2025 (see Exhibit 34.38)

34.54 Trimont LLC, as Primary Servicer of the ExchangeRight Net Leased Portfolio 28 Mortgage Loan on and after March 1, 2025 (see Exhibit 34.39)

34.55 Rialto Capital Advisors, LLC, as Special Servicer of the ExchangeRight Net Leased Portfolio 28 Mortgage Loan (Omitted. See Explanatory Notes.)

34.56 Wilmington Trust, National Association, as Trustee of the ExchangeRight Net Leased Portfolio 28 Mortgage Loan (Omitted. See Explanatory Notes.)

34.57 Wells Fargo Bank, National Association, as Custodian of the ExchangeRight Net Leased Portfolio 28 Mortgage Loan (see Exhibit 34.4)

34.58 Park Bridge Lender Services LLC, as Operating Advisor of the ExchangeRight Net Leased Portfolio 28 Mortgage Loan (see Exhibit 34.5)

34.59 CoreLogic Solutions, LLC, as Servicing Function Participant of the ExchangeRight Net Leased Portfolio 28 Mortgage Loan (see Exhibit 34.44)

34.60 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 34.7)

34.61 Wells Fargo Bank, National Association , as Primary Servicer of the Blackmore Marketplace Mortgage Loan prior to March 1, 2025 (see Exhibit 34.38)

34.62 Trimont LLC, as Primary Servicer of the Blackmore Marketplace Mortgage Loan on and after March 1, 2025 (see Exhibit 34.39)

34.63 Rialto Capital Advisors, LLC, as Special Servicer of the Blackmore Marketplace Mortgage Loan (Omitted. See Explanatory Notes.)

34.64 Wilmington Trust, National Association, as Trustee of the Blackmore Marketplace Mortgage Loan (Omitted. See Explanatory Notes.)

34.65 Wells Fargo Bank, National Association, as Custodian of the Blackmore Marketplace Mortgage Loan (see Exhibit 34.4)

34.66 Pentalpha Surveillance LLC, as Operating Advisor of the Blackmore Marketplace Mortgage Loan (Omitted. See Explanatory Notes.)

34.67 CoreLogic Solutions, LLC, as Servicing Function Participant of the Blackmore Marketplace Mortgage Loan (see Exhibit 34.44)

34.68 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 34.7)

35 Servicer compliance statements.

35.1 Midland Loan Services, a Division of PNC Bank, National Association, as Master Servicer

35.2 3650 REIT Loan Servicing LLC, as Special Servicer

35.3 Wells Fargo Bank, National Association, as Certificate Administrator

35.4 Computershare Trust Company, National Association, as Servicing Function Participant for the Certificate Administrator

35.5 Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the Selig Office Portfolio Mortgage Loan (see Exhibit 35.1)

35.6 3650 REIT Loan Servicing LLC, as Special Servicer of the Selig Office Portfolio Mortgage Loan (see Exhibit 35.2)

35.7 Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the Farmers Insurance Mortgage Loan (see Exhibit 35.1)

35.8 3650 REIT Loan Servicing LLC, as Special Servicer of the Farmers Insurance Mortgage Loan (see Exhibit 35.2)

35.9 Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the Renaissance Plano Mortgage Loan (see Exhibit 35.1)

35.10 3650 REIT Loan Servicing LLC, as Special Servicer of the Renaissance Plano Mortgage Loan (see Exhibit 35.2)

35.11 Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the APX Morristown Mortgage Loan (see Exhibit 35.1)

35.12 3650 REIT Loan Servicing LLC, as Special Servicer of the APX Morristown Mortgage Loan (see Exhibit 35.2)

35.13 Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the Desert Marketplace Mortgage Loan (see Exhibit 35.1)

35.14 3650 REIT Loan Servicing LLC, as Special Servicer of the Desert Marketplace Mortgage Loan (see Exhibit 35.2)

35.15 Wells Fargo Bank, National Association , as Primary Servicer of the Great Wolf Lodge Southern California Mortgage Loan prior to March 1, 2025 (Omitted. See Explanatory Notes.)

35.16 Trimont LLC, as Primary Servicer of the Great Wolf Lodge Southern California Mortgage Loan on and after March 1, 2025 (Omitted. See Explanatory Notes.)

35.17 Situs Holdings, LLC, as Special Servicer of the Great Wolf Lodge Southern California Mortgage Loan (Omitted. See Explanatory Notes.)

35.18 Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the Grand Canal Shoppes Mortgage Loan (see Exhibit 35.1)

35.19 Situs Holdings, LLC, as Special Servicer of the Grand Canal Shoppes Mortgage Loan prior to February 20, 2025 (Omitted. See Explanatory Notes.)

35.20 Green Loan Services LLC, as Special Servicer of the Grand Canal Shoppes Mortgage Loan on and after February 20, 2025 (Omitted. See Explanatory Notes.)

35.21 Wells Fargo Bank, National Association , as Primary Servicer of the ExchangeRight Net Leased Portfolio 28 Mortgage Loan prior to March 1, 2025 (Omitted. See Explanatory Notes.)

35.22 Trimont LLC, as Primary Servicer of the ExchangeRight Net Leased Portfolio 28 Mortgage Loan on and after March 1, 2025 (Omitted. See Explanatory Notes.)

35.23 Rialto Capital Advisors, LLC, as Special Servicer of the ExchangeRight Net Leased Portfolio 28 Mortgage Loan (Omitted. See Explanatory Notes.)

35.24 Wells Fargo Bank, National Association , as Primary Servicer of the Blackmore Marketplace Mortgage Loan prior to March 1, 2025 (Omitted. See Explanatory Notes.)

35.25 Trimont LLC, as Primary Servicer of the Blackmore Marketplace Mortgage Loan on and after March 1, 2025 (Omitted. See Explanatory Notes.)

35.26 Rialto Capital Advisors, LLC, as Special Servicer of the Blackmore Marketplace Mortgage Loan (Omitted. See Explanatory Notes.)

99.1 Mortgage Loan Purchase Agreement, dated as of September 17, 2019, between Credit Suisse Commercial Mortgage Securities Corp. and Column Financial, Inc. (filed as Exhibit 99.1 to the registrant’s Current Report on Form 8-K filed on September 25, 2019 under Commission File No. 333-227081-03 and incorporated by reference herein)

99.2 Mortgage Loan Purchase Agreement, dated as of September 17, 2019, between Credit Suisse Commercial Mortgage Securities Corp., Grass River Real Estate Credit Partners Loan Funding, LLC, and Grass River Real Estate Credit Partners REIT, LLC (filed as Exhibit 99.2 to the registrant’s Current Report on Form 8-K filed on September 25, 2019 under Commission File No. 333-227081-03 and incorporated by reference herein)

99.3 Mortgage Loan Purchase Agreement, dated as of September 17, 2019, between Credit Suisse Commercial Mortgage Securities Corp. and Societe Generale Financial Corporation (filed as Exhibit 99.3 to the registrant’s Current Report on Form 8-K filed on September 25, 2019 under Commission File No. 333-227081-03 and incorporated by reference herein)

99.4 Mortgage Loan Purchase Agreement, dated as of September 17, 2019, between Credit Suisse Commercial Mortgage Securities Corp. and UBS AG (filed as Exhibit 99.4 to the registrant’s Current Report on Form 8-K filed on September 25, 2019 under Commission File No. 333-227081-03 and incorporated by reference herein)

(b) The exhibits required to be filed by the Registrant pursuant to Item 601 of Regulation S-K are listed above.

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Credit Suisse Commercial Mortgage Securities Corp.
(Depositor)

/s/ Michael Parniawski

Michael Parniawski, Executive Director

(senior officer in charge of securitization of the depositor)

Date: March 17, 2026

/s/ Nader Attalla

Nader Attalla, Authorized Signatory

Date: March 17, 2026

CSAIL 2019-C17 Commercial Mortgage Trust 10-K