MORTGAGE LOAN PURCHASE AGREEMENT

MORTGAGE LOAN PURCHASE AGREEMENT

This is a Mortgage Loan Purchase Agreement (the "Agreement") dated as of October 27, 2005 by and between GMAC Mortgage Corporation, a Pennsylvania corporation, having an office at 100 Witmer Road, Horsham, Pennsylvania 19044 (the "Seller") and Residential Asset Mortgage Products, Inc., a Delaware corporation, and having an office at 8400 Normandale Lake Boulevard, Minneapolis, Minnesota 55437 (the "Purchaser").

The Seller agrees to sell to the Purchaser and the Purchaser agrees to purchase from the Seller certain mortgage loans on a servicing-retained basis as described herein (the "Mortgage Loans"). The following terms are defined as follows:

All capitalized terms used but not defined herein shall have the meanings assigned thereto in the Pooling and Servicing Agreement. The parties intend hereby to set forth the terms and conditions upon which the proposed transactions will be effected and, in consideration of the premises and the mutual agreements set forth herein, agree as follows:

SECTION 1. Agreement to Sell and Purchase Mortgage Loans . The Seller agrees to sell to the Purchaser and the Purchaser agrees to purchase from the Seller certain Mortgage Loans having an aggregate amount equal to the Aggregate Principal Balance as of the Cut-Off Date.

SECTION 2. Mortgage Loan Schedule . The Seller has provided to the Purchaser a schedule setting forth all of the Mortgage Loans to be purchased on the Closing Date under this Agreement, which shall be attached hereto as Schedule I (the "Mortgage Loan Schedule").

SECTION 3. Purchase Price of Mortgage Loans . The purchase price (the "Purchase Price") to be paid to the Seller by the Purchaser for the Mortgage Loans shall be the sum of (i) $592,089,252.92 and (ii) a 0.01% Percentage Interest in the Class R Certificates issued pursuant to the Pooling and Servicing Agreement. The cash portion of the purchase price shall be paid by wire transfer of immediately available funds on the Closing Date to the account specified by the Seller.

The Purchaser and Seller intend that the conveyance by the Seller to the Purchaser of all its right, title and interest in and to the Mortgage Loans pursuant to this Agreement shall be, and be construed as, a sale of the Mortgage Loans by the Seller to the Purchaser. It is, further, not intended that such conveyance be deemed to be a grant of a security interest in the Mortgage Loans by the Seller to the Purchaser to secure a debt or other obligation of the Seller. However, in the event that the Mortgage Loans are held to be property of the Seller, or if for any reason this Agreement is held or deemed to create a security interest in the Mortgage Loans, then it is intended that (a) this Agreement shall be and hereby is a security agreement within the meaning of Articles 9 of the Pennsylvania Uniform Commercial Code, the Delaware Uniform Commercial Code and the Uniform Commercial Code of any other applicable jurisdiction; (b) the conveyance provided for in this Section shall be deemed to be, and hereby is, a grant by the Seller to the Purchaser of a security interest in all of the Seller's right, title and interest, whether now owned or hereafter acquired, in and to the following: (A) the Mortgage Loans, including (i) with respect to each Cooperative Loan, the related Mortgage Note, Security Agreement, Assignment of Proprietary Lease, Cooperative Stock Certificate, Cooperative Lease, (ii) with respect to each Mortgage Loan other than a Cooperative Loan, the related Mortgage Note and Mortgage and (iii) any insurance policies and all other documents in the related Mortgage File, (B) all amounts payable pursuant to the Mortgage Loans in accordance with the terms thereof, (C) all proceeds of the conversion, voluntary or involuntary, of the foregoing into cash, instruments, securities or other property, (D) all accounts, general intangibles, chattel paper, instruments, documents, money, deposit accounts, goods, letters of credit, letter-of-credit rights, oil, gas, and other minerals, and investment property consisting of, arising from or relating to any of the foregoing and (E) all proceeds of the foregoing; (c) the possession by the Trustee, the Custodian or any other agent of the Trustee of any of the foregoing shall be deemed to be possession by the secured party, or possession by a purchaser or a person holding for the benefit of such secured party, for purposes of perfecting the security interest pursuant to the Pennsylvania Uniform Commercial Code, the Delaware Uniform Commercial Code and the Uniform Commercial Code of any other applicable jurisdiction (including, without limitation, Sections 9-313 and 9-314 of each thereof); and (d) notifications to persons holding such property, and acknowledgments, receipts or confirmations from persons holding such property, shall be deemed notifications to, or acknowledgments, receipts or confirmations from, securities intermediaries, bailees or agents of, or persons holding for, the Trustee (as applicable) for the purpose of perfecting such security interest under applicable law. The Seller shall, to the extent consistent with this Agreement, take such reasonable actions as may be necessary to ensure that, if this Agreement were determined to create a security interest in the Mortgage Loans and the other property described above, such security interest would be determined to be a perfected security interest of first priority under applicable law and will be maintained as such throughout the term of this Agreement. Without limiting the generality of the foregoing, the Seller shall prepare and deliver to the Purchaser not less than 15 days prior to any filing date, and the Purchaser shall file, or shall cause to be filed, at the expense of the Seller, all filings necessary to maintain the effectiveness of any original filings necessary under the Uniform Commercial Code as in effect in any jurisdiction to perfect the Purchaser's security interest in the Mortgage Loans, including without limitation (x) continuation statements, and (y) such other statements as may be occasioned by (1) any change of name of the Seller or the Purchaser, (2) any change of type or jurisdiction of organization of the Seller, or (3) any transfer of any interest of the Seller in any Mortgage Loan.

Notwithstanding the foregoing, (i) the Seller in its capacity as Servicer shall retain all servicing rights (including, without limitation, primary servicing and master servicing) relating to or arising out of the Mortgage Loans, and all rights to receive servicing fees, servicing income and other payments made as compensation for such servicing granted to it under the Pooling and Servicing Agreement pursuant to the terms and conditions set forth therein (collectively, the "Servicing Rights") and (ii) the Servicing Rights are not included in the collateral in which the Seller grants a security interest pursuant to the immediately preceding paragraph.

SECTION 4. Record Title and Possession of Mortgage Files . The Seller hereby sells, transfers, assigns, sets over and conveys to the Purchaser, without recourse, but subject to the terms of this Agreement and the Seller hereby acknowledges that the Purchaser, subject to the terms of this Agreement, shall have all the right, title and interest of the Seller in and to the Mortgage Loans. From the Closing Date, but as of the Cut-off Date, the ownership of each Mortgage Loan, including the Mortgage Note, the Mortgage, the contents of the related Mortgage File and all rights, benefits, proceeds and obligations arising therefrom or in connection therewith, has been vested in the Purchaser. All rights arising out of the Mortgage Loans including, but not limited to, all funds received on or in connection with the Mortgage Loans and all records or documents with respect to the Mortgage Loans prepared by or which come into the possession of the Seller shall be received and held by the Seller in trust for the exclusive benefit of the Purchaser as the owner of the Mortgage Loans. On and after the Closing Date, any portion of the related Mortgage Files or servicing files related to the Mortgage Loans (the "Servicing Files") in Seller's possession shall be held by Seller in a custodial capacity only for the benefit of the Purchaser. The Seller shall release its custody of any contents of the related Mortgage Files or Servicing Files only in accordance with written instructions of the Purchaser or the Purchaser's designee.

SECTION 5. Books and Records . The sale of each Mortgage Loan has been reflected on the Seller's balance sheet and other financial statements as a sale of assets by the Seller. The Seller shall be responsible for maintaining, and shall maintain, a complete set of books and records for the Mortgage Loans which shall be appropriately identified in the Seller's computer system to clearly reflect the ownership of the Mortgage Loans by the Purchaser.

SECTION 6. Delivery of Mortgage Notes .

1. 1. 1. On or prior to the Closing Date, the Seller shall deliver to the Purchaser or the Custodian, as directed by the Purchaser, the original Mortgage Note, with respect to each Mortgage Loan so assigned, endorsed without recourse in blank, or in the name of the Trustee as trustee, and signed by an authorized officer (which endorsement shall contain either an original signature or a facsimile signature of an authorized officer of the Seller, and if in the form of an allonge, the allonge shall be stapled to the Mortgage Note), with all intervening endorsements showing a complete chain of title from the originator to the Seller. If the Mortgage Loan was acquired by the endorser in a merger, the endorsement must be by "____________, successor by merger to [name of predecessor]". If the Mortgage Loan was acquired or originated by the endorser while doing business under another name, the endorsement must be by "____________ formerly known as [previous name]." The delivery of each Mortgage Note to the Purchaser or the Custodian is at the expense of the Seller.

In lieu of delivering the Mortgage Note relating to any Mortgage Loan, the Seller may deliver or cause to be delivered a lost note affidavit from the Seller stating that the original Mortgage Note was lost, misplaced or destroyed, and, if available, a copy of each original Mortgage Note; provided, however, that in the case of Mortgage Loans which have been prepaid in full after the Cut-off Date and prior to the Closing Date, the Seller, in lieu of delivering the above documents, may deliver to the Purchaser a certification to such effect and shall deposit all amounts paid in respect of such Mortgage Loan in the Payment Account on the Closing Date.

1. 1. 2. If any Mortgage Note is not delivered to the Purchaser (or the Custodian as directed by the Purchaser) or the Purchaser discovers any defect with respect to a Mortgage Note which materially and adversely affects the interests of the Certificateholders in the related Mortgage Loan, the Purchaser shall give prompt written specification of such defect or omission to the Seller, and the Seller shall cure such defect or omission in all material respects or repurchase such Mortgage Loan or substitute a Qualified Substitute Mortgage Loan in the manner set forth in Section 7.03. It is understood and agreed that the obligation of the Seller to cure a material defect in, or substitute for, or purchase any Mortgage Loan as to which a material defect in, or omission of, a Mortgage Note exists, shall constitute the sole remedy respecting such material defect or omission available to the Purchaser, Certificateholders or the Trustee on behalf of Certificateholders.
      3. All other documents contained in the Mortgage File and any original documents relating to the Mortgage Loans not contained in the Mortgage File or delivered to the Purchaser, are and shall be retained by the Servicer in trust as agent for the Purchaser.

In the event that in connection with any Mortgage Loan: (a) the original recorded Mortgage (or evidence of submission to the recording office), (b) all interim recorded assignments, (c) the original recorded modification agreement, if required, or (d) evidence of title insurance (together with all riders thereto, if any) satisfying the requirements of clause (I)(ii), (iv), (vi) or (vii) of the definition of Mortgage File, respectively, is not in the possession of the Servicer concurrently with the execution and delivery hereof because such document or documents have not been returned from the applicable public recording office, or, in the case of each such interim assignment or modification agreement, because the related Mortgage has not been returned by the appropriate recording office, in the case of clause (I)(ii), (iv) or (vi) of the definition of Mortgage File, or because the evidence of title insurance has not been delivered to the Seller by the title insurer in the case of clause (I)(vii) of the definition of Mortgage File, the Servicer shall use its best efforts to obtain, (A) in the case of clause (I)(ii), (iv) or (vi) of the definition of Mortgage File, such original Mortgage, such interim assignment, or such modification agreement, with evidence of recording indicated thereon upon receipt thereof from the public recording office, or a copy thereof, certified, if appropriate, by the relevant recording office, or (B) in the case of clause (I)(vii) of the definition of Mortgage File, evidence of title insurance.

1. 1. 4. If any of the documents held by the Servicer pursuant to clause (c) above are missing or defective in any other respect and such missing document or defect materially and adversely affects the interests of the Certificateholders in the related Mortgage Loan, the Seller shall cure or repurchase such Mortgage Loan or substitute a Qualified Substitute Mortgage Loan in the manner set forth in Section 7.03. It is understood and agreed that the obligation of the Seller to cure a material defect in, or substitute for, or purchase any Mortgage Loan as to which a material defect in or omission of a constituent document exists, shall constitute the sole remedy respecting such material defect or omission available to the Purchaser, Certificateholders or the Trustee on behalf of Certificateholders.
      5. If any assignment is lost or returned unrecorded to the Servicer because of any defect therein, the Seller shall prepare a substitute assignment or cure such defect, as the case may be, and the Servicer shall cause such assignment to be recorded in accordance with this Section.

SECTION 7 Representations and Warranties .

SECTION 7.01 Representations and Warranties of Seller . The Seller represents, warrants and covenants to the Purchaser that as of the Closing Date or as of such date specifically provided herein:

            The Seller is a corporation duly organized, validly existing and in good standing under the laws of the Commonwealth of Pennsylvania and is or will be in compliance with the laws of each state in which any Mortgaged Property is located to the extent necessary to ensure the enforceability of each Mortgage Loan;

            The Seller has the power and authority to make, execute, deliver and perform its obligations under this Agreement and all of the transactions contemplated under this Agreement, and has taken all necessary corporate action to authorize the execution, delivery and performance of this Agreement; this Agreement constitutes a legal, valid and binding obligation of the Seller, enforceable against the Seller in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or other similar laws now or hereafter in effect affecting the enforcement of creditors' rights in general and except as such enforceability may be limited by general principles of equity (whether considered in a proceeding at law or in equity) or by public policy with respect to indemnification under applicable securities laws;

            The execution and delivery of this Agreement by the Seller and its performance and compliance with the terms of this Agreement will not violate the Seller's Certificate of Incorporation or Bylaws or constitute a material default (or an event which, with notice or lapse of time, or both, would constitute a material default) under, or result in the material breach of, any material contract, agreement or other instrument to which the Seller is a party or which may be applicable to the Seller or any of its assets;

            No litigation before any court, tribunal or governmental body is currently pending, nor to the knowledge of the Seller is threatened against the Seller, nor is there any such litigation currently pending, nor to the knowledge of the Seller threatened against the Seller with respect to this Agreement that in the opinion of the Seller has a reasonable likelihood of resulting in a material adverse effect on the transactions contemplated by this Agreement;

            No consent, approval, authorization or order of any court or governmental agency or body is required for the execution, d