Mortgage Loan Flow Purchase, Sale & Servicing Agreement dated as of February 24, 2005

This AMENDMENT NUMBER ONE is made this 15th day of February, 2006, by and between PHH MORTGAGE CORPORATION having an address at 3000 Leadenhall Road, Mt. Laurel, New Jersey 08054 (the “Seller” or the “Servicer”), BISHOP’S GATE RESIDENTIAL MORTGAGE TRUST (FORMERLY KNOWN AS CENDANT RESIDENTIAL MORTGAGE TRUST) (the “Trust”, together with the Seller, the “Sellers”) and CITIGROUP GLOBAL MARKETS REALTY CORP. having an address at 390 Greenwich Street, New York, New York 10013 (the “Purchaser”), to the Mortgage Loan Flow Purchase, Sale & Servicing Agreement, dated as of February 24, 2005, by and between the Purchaser and the Sellers (the “Agreement”).

WHEREAS, the Purchaser and the Sellers desire to amend the Agreement, subject to the terms hereof, to modify the Agreement as specified herein; and

WHEREAS, the Purchaser and the Sellers each have agreed to execute and deliver this Amendment Number One on the terms and conditions set forth herein.

NOW THEREFORE, for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, and of the mutual covenants herein contained, the parties hereto hereby agree as follows:

SECTION 1.    Amendments . Effective as of February 15, 2006, the Agreement is hereby amended as follows:

(a)    Section 1.01 of the Agreement is hereby amended by adding the following definitions:

Commission : The United States Securities and Exchange Commission.

Depositor : The depositor, as such term is defined in Regulation AB, with respect to any Securitization Transaction.

Exchange Act : The Securities Exchange Act of 1934, as amended.

Qualified Correspondent : Any Person from which the Seller purchased Mortgage Loans, provided that the following conditions are satisfied: (i) such Mortgage Loans were originated pursuant to an agreement between the Seller and such Person that contemplated that such Person would underwrite mortgage loans from time to time, for sale to the Seller, in accordance with underwriting guidelines designated by the Seller (“Designated Guidelines”) or guidelines that do not vary materially from such Designated Guidelines; (ii) such Mortgage Loans were in fact underwritten as described in clause (i) above and were acquired by the Seller within 180 days after origination; (iii) either (x) the Designated Guidelines were, at the time such Mortgage Loans were originated, used by the Seller in origination of mortgage loans of the same type as the Mortgage Loans for the Seller’s own account or (y) the Designated Guidelines were, at the time such Mortgage Loans were underwritten, designated by the Seller on a consistent basis for use by lenders in originating mortgage loans to be purchased by the Seller; and (iv) the Seller employed, at the time such Mortgage Loans were acquired by the Seller, pre-purchase or post-purchase quality assurance procedures (which may involve, among other things, review of a sample of mortgage loans purchased during a particular time period or through particular channels) designed to ensure that Persons from which it purchased mortgage loans properly applied the underwriting criteria designated by the Seller.

Reconstitution : Any Securitization Transaction or Whole Loan Transfer.

Regulation AB : Subpart 229.1100 - Asset Backed Securities (Regulation AB), 17 C.F.R. §§229.1100-229.1123, as such may be amended from time to time, and subject to such clarification and interpretation as have been provided by the Commission in the adopting release (Asset-Backed Securities, Securities Act Release No. 33-8518, 70 Fed. Reg. 1,506, 1,531 (Jan. 7, 2005)) or by the staff of the Commission, or as may be provided by the Commission or its staff from time to time.

Securities Act : The Securities Act of 1933, as amended.

Securitization Transaction : Any transaction involving either (1) a sale or other transfer of some or all of the Mortgage Loans directly or indirectly to an issuing entity in connection with an issuance of publicly offered or privately placed, rated or unrated mortgage-backed securities or (2) an issuance of publicly offered or privately placed, rated or unrated securities, the payments on which are determined primarily by reference to one or more portfolios of residential mortgage loans consisting, in whole or in part, of some or all of the Mortgage Loans.

Seller/Servicer Information : As defined in Section 13.07(a).

Servicer : As defined in Section 13.03(c).

Servicing Criteria : The “servicing criteria” set forth in Item 1122(d) of Regulation AB, as such may be amended from time to time.

Static Pool Information : Static pool information as described in Item 1105(a)(1)-(3) and 1105(c) of Regulation AB.

Subcontractor : Any vendor, subcontractor or other Person that is not responsible for the overall servicing (as “servicing” is commonly understood by participants in the mortgage-backed securities market) of Mortgage Loans but performs one or more discrete functions identified in Item 1122(d) of Regulation AB with respect to Mortgage Loans under the direction or authority of the Seller or a Subservicer.

Subservicer : Any Person that services Mortgage Loans on behalf of the Seller or any Subservicer and is responsible for the performance (whether directly or through Subservicers or Subcontractors) of a substantial portion of the material servicing functions required to be performed by the Seller under this Agreement or any Reconstitution Agreement that are identified in Item 1122(d) of Regulation AB.

Subservicing Agreement : The written contract between the Seller and a Subservicer relating to servicing and administration of certain Mortgage Loans as provided in Section 5.19.

Third-Party Originator : Each Person, other than a Qualified Correspondent, that originated Mortgage Loans acquired by the Seller.

(b)    The Agreement is hereby amended by replacing the words “Pass-Through Transfer” each time they appear in the Agreement with the words “Securitization Transaction”.

(c)    Section 10.01 of the Agreement is hereby amended by adding the word “or” and the following after clause (8):

(9)     the Seller fails to deliver any information, report, certification, accountants’ letter or other material when and as required under Article XIII, including any failure by the Seller to identify pursuant to Subsection 13.06(b) any Subcontractor “participating in the servicing function” within the meaning of Item 1122 of Regulation AB;

(d)    The Agreement is hereby modified by inserting the following Article XIII immediately following Article XII:

ARTICLE XIII.   COMPLIANCE WITH REGULATION AB

The Purchaser and the Seller acknowledge and agree that the purpose of Article XIII of this Agreement is to facilitate compliance by the Purchaser and any Depositor with the provisions of Regulation AB and related rules and regulations of the Commission. Although Regulation AB is applicable by its terms only to offerings of asset-backed securities that are registered under the Securities Act, the Seller acknowledges that investors in privately offered securities may require that the Purchaser or any Depositor provide comparable disclosure in unregistered offerings. References in this Agreement to compliance with Regulation AB include provision of comparable disclosure in private offerings.

Neither the Purchaser nor any Depositor shall exercise its right to request delivery of information or other performance under these provisions other than in good faith, or for purposes other than compliance with the Securities Act, the Exchange Act and the rules and regulations of the Commission thereunder (or the provision in a private offering of disclosure comparable to that required under the Securities Act). The Seller acknowledges that interpretations of the requirements of Regulation AB may change over time, whether due to interpretive guidance provided by the Commission or its staff, consensus among participants in the asset-backed securities markets, advice of counsel, or otherwise, and agrees to comply with requests made by the Purchaser, any master servicer or any Depositor in good faith for delivery of information under these provisions on the basis of evolving interpretations of Regulation AB. In connection with any Securitization Transaction, the Seller shall cooperate fully with the Purchaser and any master servicer to deliver to the Purchaser (including any of its assignees or designees), any master servicer and any Depositor, any and all statements, reports, certifications, records and any other information necessary in the good faith determination of the Purchaser, the master servicer or any Depositor to permit the Purchaser, such master servicer or such Depositor to comply with the provisions of Regulation AB, together with such disclosures relating to the Seller, any Subservicer, any Third-Party Originator and the Mortgage Loans, or the servicing of the Mortgage Loans, reasonably believed by the Purchaser or any Depositor to be necessary in order to effect such compliance.

The Purchaser (including any of its assignees or designees) shall cooperate with the Seller by providing timely notice of requests for information under these provisions and by reasonably limiting such requests to information required, in the Purchaser’s reasonable judgment, to comply with Regulation AB.

(a)    The Seller shall be deemed to represent to the Purchaser, to any master servicer and to any Depositor, as of the date on which information is first provided to the Purchaser, any master servicer or any Depositor under Subsection 13.03 that, except as disclosed in writing to the Purchaser, such master servicer or such Depositor prior to such date: (i) the Seller is not aware and has not received notice that any default, early amortization or other performance triggering event has occurred as to any other securitization due to any act or failure to act of the Seller; (ii) the Seller has not been terminated as servicer in a residential mortgage loan securitization, either due to a servicing default or to application of a servicing performance test or trigger; (iii) no material noncompliance with the applicable servicing criteria with respect to other securitizations of residential mortgage loans involving the Seller as servicer has been disclosed or reported by the Seller; (iv) no material changes to the Seller’s policies or procedures with respect to the servicing function it will perform under this Agreement and any Reconstitution Agreement for mortgage loans of a type similar to the Mortgage Loans have occurred during the three-year period immediately preceding the related Securitization Transaction; (v) there are no aspects of the Seller’s financial condition that could have a material adverse effect on the performance by the Seller of its servicing obligations under this Agreement or any Reconstitution Agreement; (vi) there are no material legal or governmental proceedings pending (or known to be contemplated) against the Seller, any Subservicer or any Third-Party Originator; and (vii) there are no affiliations, relationships or transactions relating to the Seller, any Subservicer or any Third-Party Originator with respect to any Securitization Transaction and any party thereto identified by the related Depositor of a type described in Item 1119 of Regulation AB.

(b)    If so requested by the Purchaser, any master servicer or any Depositor on any date following the date on which information is first provided to the Purchaser, any master servicer or any Depositor under Subsection 13.03, the Seller shall, within five Business Days following such request, confirm in writing the accuracy of the representations and warranties set forth in paragraph (a) of this Section or, if any such representation and warranty is not accurate as of the date of such request, provide reasonably adequate disclosure of the pertinent facts, in writing, to the requesting party.

In connection with any Securitization Transaction the Seller shall (i) within five Business Days following request by the Purchaser, any master servicer or any Depositor, provide to the Purchaser and such Depositor (or, as applicable, cause each Third-Party Originator and each Subservicer to provide), in writing and in form and substance reasonably satisfactory to the Purchaser and such Depositor, the information and materials specified in paragraphs (a), (b), (c) and (g) of this Section, and (ii) as promptly as practicable following notice to or discovery by the Seller, provide to the Purchaser and any Depositor (in writing and in form and substance reasonably satisfactory to the Purchaser and such Depositor) the information specified in paragraph (d) of this Section.

(a)    If so requested by the Purchaser or any Depositor, the Seller shall provide such information regarding (i) the Seller, as originator of the Mortgage Loans (including as an acquirer of Mortgage Loans from a Qualified Correspondent), or (ii) each Third-Party Originator, and (iii) as applicable, each Subservicer, as is requested for the purpose of compliance with Items 1103(a)(1), 1105, 1110, 1117 and 1119 of Regulation AB. Such information shall include, at a minimum:

(A)   the originator’s form of organization;

(B)   a description of the originator’s origination program and how long the originator has been engaged in originating residential mortgage loans, which description shall include a discussion of the originator’s experience in originating mortgage loans of a similar type as the Mortgage Loans; information regarding the size and composition of the originator’s origination portfolio; and information that may be material, in the good faith judgment of the Purchaser or any Depositor, to an analysis of the performance of the Mortgage Loans, including the originators’ credit-granting or underwriting criteria for mortgage loans of similar type(s) as the Mortgage Loans and such other information as the Purchaser or any Depositor may reasonably request for the purpose of compliance with Item 1110(b)(2) of Regulation AB;

(C)   a description of any material legal or governmental proceedings pending (or known to be contemplated) against the Seller, each Third-Party Originator and each Subservicer; and

(D)   a description of any affiliation or relationship between the Seller, each Third-Party Originator, each Subservicer and any of the following parties to a Securitization Transaction, as such parties are identified to the Seller by the Purchaser or any Depositor in writing in advance of such Securitization Transaction:

(1)   the sponsor;

(2)   the depositor;

(3)   the issuing entity;

(4)   any servicer;

(5)   any trustee;

(6)   any originator;

(7)   any significant obligor;

(8)   any enhancement or support provider; and

(9)   any other material transaction party.

(b)    If so requested by the Purchaser or any Depositor, the Seller shall provide (or, as applicable, cause each Third-Party Originator to provide) Static Pool Information with respect to the mortgage loans (of a similar type as the Mortgage Loans, as reasonably identified by the Purchaser as provided below) originated by (i) the Seller, if the Seller is an originator of Mortgage Loans (including as an acquirer of Mortgage Loans from a Qualified Correspondent), and/or (ii) each Third-Party Originator. Such Static Pool Information shall be prepared by the Seller (or Third-Party Originator) on the basis of its reasonable, good faith interpretation of the requirements of Item 1105(a)(1)-(3) of Regulation AB. To the extent that there is reasonably available to the Seller (or Third-Party Originator) Static Pool Information with respect to more than one mortgage loan type, the Purchaser or any Depositor shall be entitled to specify whether some or all of such information shall be provided pursuant to this paragraph. The content of such Static Pool Information may be in the form customarily provided by the Seller, and need not be customized for the Purchaser or any Depositor. Such Static Pool Information for each vintage origination year or prior securitized pool, as applicable, shall be presented in increments no less frequently than quarterly over the life of the mortgage loans included in the vintage origination year or prior securitized pool. The most recent periodic increment must be as of a date no later than 135 days prior to the date of the prospectus or other offering document in which the Static Pool Information is to be included or incorporated by reference. The Static Pool Information shall be provided in an electronic format that provides a permanent record of the information provided, such as a portable document format (pdf) file, or other such electronic format reasonably required by the Purchaser or the Depositor, as applicable.

Promptly following notice or discovery of a material error in Static Pool Information provided pursuant to the immediately preceding paragraph (including an omission to include therein information required to be provided pursuant to such paragraph), the Seller shall provide corrected Static Pool Information to the purchaser or any Depositor, as applicable, in the same format in which Static Pool Information was previously provided to such party by the Seller.

If so requested by the Purchaser or any Depositor, the Seller shall provide (or, as applicable, cause each Third-Party Originator to provide), at the expense of the requesting party (to the extent of any additional incremental expense associated with delivery pursuant to this Agreement), such agreed-upon procedures letters of certified public accountants reasonably acceptable to the Purchaser or Depositor, as applicable, pertaining to Static Pool Information relating to prior securitized pools for securitizations closed on or after January 1, 2006 or, in the case of Static Pool Information with respect to the Seller’s or Third-Party Originator’s originations or purchases, to calendar months commencing January 1, 2006, as the Purchaser or such Depositor shall reasonably request. Such letters shall be addressed to and be for the benefit of such parties as the Purchaser or such Depositor shall designate, which may include, by way of example, any Sponsor, any Depositor and any broker dealer acting as underwriter, placement agent or initial purchaser with respect to a Securitization Transaction. Any such statement or letter may take the form of a standard, generally applicable document accompanied by a reliance letter authorizing reliance by the addressees designated by the Purchaser or such Depositor.

(c)    If so requested by the Purchaser or any Depositor, the Seller shall provide such information regarding the Seller, as servicer of the Mortgage Loans, and each Subservicer (each of the Seller and each Subservicer, for purposes of this paragraph, a “Servicer”), as is requested for the purpose of compliance with Items 1108, 1117 and 1119 of Regulation AB. Such information shall include, at a minimum:

(A)   the Servicer’s form of organization;

(B)   a description of how long the Servicer has been servicing residential mortgage loans; a general discussion of the Servicer’s experience in servicing assets of any type as well as a more detailed discussion of the Servicer’s experience in, and procedures for, the servicing function it will perform under this Agreement and any Reconstitution Agreements; information regarding the size, composition and growth of the Servicer’s portfolio of residential mortgage loans of a type similar to the Mortgage Loans and information on factors related to the Servicer that may be material, in the good faith judgment of the Purchaser or any Depositor, to any analysis of the servicing of the Mortgage Loans or the related asset-backed securities, as applicable, including, without limitation:

(1)   whether any prior securitizations of mortgage loans of a type similar to the Mortgage Loans involving the Servicer have defaulted or experienced an early amortization or other performance triggering event because of servicing during the three-year period immediately preceding the related Securitization Transaction;

(2)   the extent of outsourcing the Servicer utilizes;

(3)   whether there has been previous disclosure of material noncompliance with the applicable servicing criteria with respect to other securitizations of residential mortgage loans involving the Servicer as a servicer during the three-year period immediately preceding the related Securitization Transaction;

(4) whether the Servicer has been terminated as servicer in a residential mortgage loan securitization, either due to a servicing default or to application of a servicing performance test or trigger; and

(5) such other information as the Purchaser or any Depositor may reasonably request for the purpose of compliance with Item 1108(b)(2) of Regulation AB;

(C)   a description of any material changes during the three-year period immediately preceding the related Securitization Transaction to the Servicer’s policies or procedures with respect to the servicing function it will perform under this Agreement and any Reconstitution Agreements for mortgage loans of a type similar to the Mortgage Loans;

(D)   information regarding the Servicer’s financial condition, to the extent that there is a material risk that an adverse financial event or circumstance involving the Servicer could have a material adverse effect on the performance by the Seller of its servicing obligations under this Agreement or any Reconstitution Agreement;

(E)   information regarding advances made by the Servicer on the Mortgage Loans and the Servicer’s overall servicing portfolio of residential mortgage loans for the three-year period immediately preceding the related Securitization Transaction, which may be limited to a statement by an authorized officer of the Servicer to the effect that the Servicer has made all advances required to be made on residential mortgage loans serviced by it during such period, or, if such statement would not be accurate, information regarding the percentage and type of advances not made as required, and the reasons for such failure to advance;

(F)   a description of the Servicer’s processes and procedures designed to address any special or unique factors involved in servicing loans of a similar type as the Mortgage Loans;

(G)   a description of the Servicer’s processes for handling delinquencies, losses, bankruptcies and recoveries, such as through liquidation of mortgaged properties, sale of defaulted mortgage loans or workouts; and

(H)   information as to how the Servicer defines or determines delinquencies and charge-offs, including the effect of any grace period, re-aging, restructuring, partial payments considered current or other practices with respect to delinquency and loss experience.

(d)    For the purpose of satisfying the reporting obligation under the Exchange Act with respect to any class of asset-backed securities, the Seller shall (or shall cause each Subservicer and Third-Party Originator to) (i) provide prompt notice to the Purchaser, any master servicer and any Depositor in writing of (A) any material litigation or governmental proceedings involving the Seller, any Subservicer or any Third-Party Originator, (B) any affiliations or relationships that develop following the closing date of a Securitization Transaction between the Seller, any Subservicer or any Third-Party Originator and any of the parties specified in clause (D) of paragraph (a) of this Subsection (and any other parties identified in writing by the requesting party) with respect to such Securitization Transaction, (C) any Event of Default under the terms of this Agreement or any Reconstitution Agreement, (D) any merger, consolidation or sale of substantially all of the assets of the Seller, and (E) the Seller’s entry into an agreement with a Subservicer or Subcontractor to perform or assist in the performance of any of the Seller’s obligations under this Agreement or any Reconstitution Agreement and (ii) provide to the Purchaser and any Depositor a description of such proceedings, affiliations or relationships.

(e)    As a condition to the succession to the Seller or any Subservicer as servicer or subservicer under this Agreement or any Reconstitution Agreement by any Person (i) into which the Seller or such Subservicer may be merged or consolidated, or (ii) which may be appointed as a successor to the Seller or any Subservicer, the Seller shall provide to the Purchaser and any Depositor, at least 15 calendar days prior to the effective date of such succession or appointment, (x) written notice to the Purchaser and any Depositor of such succession or appointment and (y) in writing and in form and substance reasonably satisfactory to the Purchaser and such Depositor, all information reasonably requested by the Purchaser or any Depositor in order to comply with its reporting obligation under Item 6.02 of Form 8-K with respect to any class of asset-backed securities.

(f)    In addition to such information as the Seller, as Servicer, is obligated to provide pursuant to other provisions of this Agreement, not later than ten days prior to th