10-D 1 ace07he4_10d-200705.txt UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D.C. 20549 FORM 10-D ASSET-BACKED ISSUER DISTRIBUTION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the monthly distribution period from: April 30, 2007 to May 25, 2007 Commission File Number of issuing entity: 333-131727-29 ACE Securities Corp. Home Equity Loan Trust, Series 2007- HE4 (Exact name of issuing entity as specified in its charter) Commission File Number of depositor: 333-131727 ACE Securities Corp. (Exact name of depositor as specified in its charter) DB Structured Products, Inc. (Exact name of sponsor as specified in its charter) New York (State or other jurisdiction of incorporation or organization of the issuing entity) 54-2199558 54-2199559 54-2199560 (I.R.S. Employer Identification No.) c/o Wells Fargo Bank, N.A. 9062 Old Annapolis Road Columbia, MD 21045 (Address of principal executive offices of the issuing entity) (Zip Code) (410) 884-2000 (Telephone number, including area code) Not Applicable (Former name, former address, if changed since last report) Registered/reporting pursuant to (check one) Title of Section Section Section Name of Exchange Class 12(b) 12(g) 15(d) (If Section 12(b)) A-1 _____ _____ __X___ ____________ A-2A _____ _____ __X___ ____________ A-2B _____ _____ __X___ ____________ A-2C _____ _____ __X___ ____________ A-2D _____ _____ __X___ ____________ M-1 _____ _____ __X___ ____________ M-2 _____ _____ __X___ ____________ M-3 _____ _____ __X___ ____________ M-4 _____ _____ __X___ ____________ M-5 _____ _____ __X___ ____________ M-6 _____ _____ __X___ ____________ M-7 _____ _____ __X___ ____________ M-8 _____ _____ __X___ ____________ M-9 _____ _____ __X___ ____________ P _____ _____ __X___ ____________ CE-1 _____ _____ __X___ ____________ CE-2 _____ _____ __X___ ____________ IO Interest _____ _____ __X___ ____________

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 __X__ No ____ Part I - DISTRIBUTION INFORMATION Item 1. Distribution and Pool Performance Information On May 25, 2007 a distribution was made to holders of ACE Securities Corp. Home Equity Loan Trust, Series 2007- HE4. The distribution report is attached as an Exhibit to this Form 10-D. Please see Item 9(b), Exhibit 99.1 for the related information. Part II - OTHER INFORMATION Item 8. Other Information. Pursuant to a pooling and servicing agreement (the "Pooling Agreement"), dated as of April 1, 2007 among ACE Securities Corp. as depositor (the "Depositor"), Wells Fargo Bank, N.A. as master servicer and securities administrator, Ocwen Loan Servicing, LLC and GMAC Mortgage, LLC as servicers and HSBC Bank USA, National Association as trustee (the "Trustee"), a trust (the "Trust") was established and a series of certificates entitled ACE Securities Corp. Home Equity Loan Trust, Series 2007-HE4, Asset Backed Pass-Through Certificates (the "Certificates") were issued. Capitalized terms used herein but not otherwise defined shall have the meanings assigned to them in the Pooling Agreement. On May 21, 2007, following the closing of the initial issuance of the Certificates, the Trustee, on behalf of the Trust, purchased from the Depositor certain Subsequent Mortgage Loans having an aggregate principal balance as of the Subsequent Cut-Off Date equal to $784,470.96 using funds on deposit in the pre-funding account established pursuant to the Pooling Agreement at a purchase price equal to the aggregate principal balance thereof. The Subsequent Mortgage Loans were conveyed to the Trust pursuant to a Subsequent Transfer Instrument dated as of May 21, 2007 between the Depositor and the Trustee. The Subsequent Transfer Instrument is attached hereto as Exhibit 99.2. Item 9. Exhibits. (a) The following is a list of documents filed as part of this Report on Form 10-D: (99.1) Monthly report distributed to holders of ACE Securities Corp. Home Equity Loan Trust, Series 2007- HE4, relating to the May 25, 2007 distribution. (99.2) Subsequent Transfer Instrument (b) The exhibits required to be filed by the Registrant pursuant to this Form are listed above and in the Exhibit Index that immediately follows the signature page hereof. SIGNATURES Pursuant to the requirements 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. ACE Securities Corp. Home Equity Loan Trust, Series 2007- HE4 (Issuing Entity) Wells Fargo Bank, N.A. (Master Servicer) /s/ Kelly Rentz Kelly Rentz, Officer Date: June 7, 2007 EXHIBIT INDEX Exhibit Number Description EX-99.1 Monthly report distributed to holders of ACE Securities Corp. Home Equity Loan Trust, Series 2007- HE4, relating to the May 25, 2007 distribution. EX-99.2 Subsequent Transfer Instrument EX-99.1 ACE Securities Corporation Mortgage-Backed Pass-Through Certificate Distribution Date: 5/25/2007 ACE Securities Corporation Mortgage-Backed Pass-Through Certificate Series 2007-HE4 Contact: Customer Service - CTSLink Wells Fargo Bank, N.A. Securities Administration Services 7485 New Horizon Way Frederick, MD 21703 www.ctslink.com Telephone: (301) 815-6600 Fax: (301) 815-6660

Foreclosure Detail - All Mortgage Loans in Foreclosure during Current Period

Bankruptcy Detail - All Mortgage Loans in Bankruptcy during Current Period

Prepayment Rates

EX-99.2 SUBSEQUENT TRANSFER INSTRUMENT Pursuant to this Subsequent Transfer Instrument, dated May 21, 2007 (the "Instrument"), between ACE Securities Corp. as seller (the "Depositor"), and HSBC Bank USA, National Association as trustee of the ACE Securities Corp. Home Equity Loan Trust, Series 2007-HE4, Asset Backed Pass-Through Certificates, as purchaser (the "Trustee"), and pursuant to the Pooling and Servicing Agreement, dated as of April 1, 2007 (the "Pooling and Servicing Agreement"), among the Depositor, Ocwen Loan Servicing, LLC as a servicer, GMAC Mortgage, LLC as a servicer, Wells Fargo Bank, N.A. as Master Servicer and Securities Administrator and the Trustee, the Depositor and the Trustee agree to the sale by the Depositor and the purchase by the Trustee in trust, on behalf of the Trust, of the Mortgage Loans listed on the attached Schedule of Mortgage Loans (the "Subsequent Mortgage Loans"). Capitalized terms used but not otherwise defined herein shall have the meanings set forth in the Pooling and Servicing Agreement. Section 1. Conveyance of Subsequent Mortgage Loans. (a) The Depositor does hereby sell, transfer, assign, set over and convey to the Trustee in trust, on behalf of the Trust, without recourse, all of its right, title and interest in and to the Subsequent Mortgage Loans, and including all amounts due on the Subsequent Mortgage Loans after the subsequent cut-off date (the "Subsequent Cut-off Date") set forth in the Subsequent Mortgage Loan Purchase Agreement (defined below), and all items with respect to the Subsequent Mortgage Loans to be delivered pursuant to Section 2.01 of the Pooling and Servicing Agreement; provided, however that the Depositor reserves and retains all right, title and interest in and to amounts due on the Subsequent Mortgage Loans on or prior to the related Subsequent Cut-off Date. The Depositor, contemporaneously with the delivery of this Agreement, has delivered or caused to be delivered to the Trustee (or the Custodian on its behalf) each item set forth in Section 2.01 of the Pooling and Servicing Agreement. The transfer to the Trustee by the Depositor of the Subsequent Mortgage Loans identified on the Mortgage Loan Schedule shall be absolute and is intended by the Depositor, the Trustee and the Certificateholders to constitute and to be treated as a sale by the Depositor to the Trust Fund. (b) The Depositor, concurrently with the execution and delivery hereof, does hereby transfer, assign, set over and otherwise convey to the Trustee without recourse for the benefit of the Certificateholders all the right, title and interest of the Depositor, in, to and under the Subsequent Mortgage Loan Purchase Agreement, dated the date hereof, between the Depositor as purchaser and DB Structured Products, Inc. as seller (the "Subsequent Mortgage Loan Purchase Agreement"), to the extent of the Subsequent Mortgage Loans. (c) Additional terms of the sale are set forth on Attachment A hereto. Section 2. Representations and Warranties; Conditions Precedent. (a) The Depositor hereby confirms that each of the conditions and the representations and warranties set forth in Section 2.09 of the Pooling and Servicing Agreement are satisfied as of the date hereof. (page) (b) All terms and conditions of the Pooling and Servicing Agreement are hereby ratified and confirmed; provided, however, that in the event of any conflict, the provisions of this Instrument shall control over the conflicting provisions of the Pooling and Servicing Agreement. Section 3. Recordation of Instrument. To the extent permitted by applicable law, this Instrument, or a memorandum thereof if permitted under applicable law, is subject to recordation in all appropriate public offices for real property records in all of the counties or other comparable jurisdictions in which any or all of the properties subject to the Mortgages are situated, and in any other appropriate public recording office or elsewhere, such recordation to be effected by the Depositor at the Certificateholders' expense on direction of the related Certificateholders, but only when accompanied by an Opinion of Counsel to the effect that such recordation materially and beneficially affects the interests of the Certificateholders or is necessary for the administration or servicing of the Subsequent Mortgage Loans. Section 4. Governing Law. This Instrument shall be construed in accordance with the laws of the State of New York and the obligations, rights and remedies of the parties hereunder shall be determined in accordance with such laws, without giving effect to principles of conflicts of law. The parties hereto intend that the provisions of Section 5-1401 of the New York General Obligations Law shall apply to this Instrument. Section 5. Counterparts. This Instrument may be executed in one or more counterparts and by the different parties hereto on separate counterparts, each of which, when so executed, shall be deemed to be an original; such counterparts, together, shall constitute one and the same instrument. Section 6. Successors and Assigns. This Instrument shall inure to the benefit of and be binding upon the Depositor and the Trustee and their respective successors and assigns. [signature page follows] (page) Subsequent Transfer Instrument (ACE 2007-HE4) ACE SECURITIES CORP. By: Name: Title: By: Name: Title: HSBC BANK USA, NATIONAL ASSOCIATION, as Trustee for ACE Securities Corp. Home Equity Loan Trust, Series 2007-HE4, Asset Backed Pass-Through Certificates By: Name: Title: Attachments A. Additional terms of sale. B. Schedule of Subsequent Mortgage Loans. (page) ATTACHMENT A ADDITIONAL TERMS OF SALE None. (page) ATTACHMENT B SCHEDULE OF SUBSEQUENT MORTGAGE LOANS (To be provided upon request)

ACE Securities Corp. Home Equity Loan Trust, Series 2007-HE4 10-D