Exhibit 33.1

[Letterhead of GMAC Residential Funding Company, LLC]

Certification Regarding Compliance with Applicable Servicing Criteria



|1. | Residential Funding Company, LLC (RFC) is responsible for assessing compliance with the servicing criteria applicable to it under paragraph (d) of Item 1122 of
Regulation AB, as of and for the 12-month period ending December 31, 2007 (the Reporting Period), as set forth in Appendix A hereto. The transactions covered by this report include (i) all SEC-registered transactions closed on
or after January 1, 2006 and (ii) unregistered transactions where RFC has agreed to prepare an assessment of compliance in conformity with Item 1122 of Regulation AB, for which RFC acted as a master servicer and/or securities
administrator and involving first and second lien mortgage loans and home equity loans whether sold as whole loans or transferred in connection with securitization transactions (the RFC Master Servicing Platform), as set forth in
Appendix B hereto.
|-- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|2. | Except as set forth in paragraph 3 below, RFC used the criteria set forth in paragraph (d) of Item 1122 of Regulation AB to assess the compliance with the applicable
servicing criteria;
|-- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|3. | The criteria listed in the column titled Inapplicable to Residential Funding Company, LLC as Master Servicer and Securities Administrator in Appendix A hereto are
inapplicable to RFC based on the activities it performs with respect to the RFC Master Servicing Platform;
|-- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|4. | RFC has complied, in all material respects, with the applicable servicing criteria as of December 31, 2007 and for the Reporting Period with respect to the RFC Master Servicing
Platform taken as a whole.
|-- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|5. | PricewaterhouseCoopers, LLP, a registered independent public accounting firm, has issued an attestation report on RFCs assessment of compliance with the applicable servicing
criteria for the Reporting Period.
|-- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|               |  |  |  |                                  |  |     |  |                         
|-------------- |  |  |  | -------------------------------- |  | --- |  | ------------------------
|March 17, 2008 |  |  |  |                                 
|               |  | 
|               |  |  |  | Residential Funding Company, LLC
|               |  |  |  |                                 
|               |  |  |  |                                  |  | By: |  | /s/ Anthony N. Renzi    
|               |  |  |  |                                  |  |     |  | Name: Anthony N. Renzi  
|               |  |  |  |                                  |  |     |  | Title: Managing Director



---

APPENDIX A



|                   |  |                                                                                                                                                                                                                                                                                                                                                                                 |  |                                                                                        |  |                                                                                          
|------------------ |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | -------------------------------------------------------------------------------------- |  | -----------------------------------------------------------------------------------------
|SERVICING CRITERIA |  | SERVICING CRITERIA                                                                                                                                                                                                                                                                                                                                                             
|Reg AB Reference   |  | Criteria                                                                                                                                                                                                                                                                                                                                                                        |  | Applicable toResidentialFundingCompany,LLC
asMasterServicer andSecuritiesAdministrator |  | Inapplicable
toResidentialFundingCompany,LLC as MasterServicer andSecuritiesAdministrator
|                   |  | General Servicing Considerations                                                                                                                                                                                                                                                                                                                                                |  |                                                                                        |  |                                                                                          
|1122(d)(1)(i)      |  | Policies and procedures are instituted to monitor any performance or other triggers and
events of default in accordance with the transaction agreements.                                                                                                                                                                                                                        |  | X                                                                                      |  |                                                                                          
|1122(d)(1)(ii)     |  | If any material servicing activities are outsourced to third parties, policies and
procedures are instituted to monitor the third partys performance and compliance with such servicing activities.                                                                                                                                                                            |  |                                                                                        |  | X                                                                                        
|1122(d)(1)(iii)    |  | Any requirements in the transaction agreements to maintain a back-up Servicer for the pool
assets are maintained.                                                                                                                                                                                                                                                               |  | X                                                                                      |  |                                                                                          
|1122(d)(1)(iv)     |  | A fidelity bond and errors and omissions policy is in effect on the party participating in
the servicing function throughout the reporting period in the amount of coverage required by and otherwise in accordance with the terms of the transaction agreements.                                                                                                               |  | X                                                                                      |  |                                                                                          
|                   |  |                                                                                                                                                                                                                                                                                                                                                                                 | 
|                   |  | Cash Collection and Administration                                                                                                                                                                                                                                                                                                                                              |  |                                                                                        |  |                                                                                          
|1122(d)(2)(i)      |  | Payments on pool assets are deposited into the appropriate custodial bank accounts and
related bank clearing accounts no more than two business days following receipt, or such other number of days specified in the transaction agreements.                                                                                                                                   |  | X                                                                                      |  |                                                                                          
|1122(d)(2)(ii)     |  | Disbursements made via wire transfer on behalf of an obligor or to an investor are made only
by authorized personnel.                                                                                                                                                                                                                                                           |  | X                                                                                      |  |                                                                                          
|1122(d)(2)(iii)    |  | 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.                                                                                                                                                       |  | X                                                                                      |  |                                                                                          
|1122(d)(2)(iv)     |  | The related accounts for the transaction, such as cash reserve accounts or accounts
established as a form of overcollateralization, are separately maintained (e.g., with respect to commingling of cash) as set forth in the transaction agreements.                                                                                                                           |  |                                                                                        |  | X                                                                                        
|1122(d)(2)(v)      |  | Each custodial account is maintained at a federally insured depository institution as set
forth in the transaction agreements. For purposes of this criterion, federally insured depository institution with respect to a foreign financial institution means a foreign financial institution that meets the requirements of Rule
13k-1(b)(1) of the Securities Exchange Act. |  | X                                                                                      |  |                                                                                          
|1122(d)(2)(vi)     |  | Unissued checks are safeguarded so as to prevent unauthorized access.                                                                                                                                                                                                                                                                                                           |  |                                                                                        |  | X                                                                                        



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|                   |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |  |                                                                                        |  |                                                                                          
|------------------ |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | -------------------------------------------------------------------------------------- |  | -----------------------------------------------------------------------------------------
|SERVICING CRITERIA |  | SERVICING CRITERIA                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
|Reg AB Reference   |  | Criteria                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |  | Applicable toResidentialFundingCompany,LLC
asMasterServicer andSecuritiesAdministrator |  | Inapplicable
toResidentialFundingCompany,LLC as MasterServicer andSecuritiesAdministrator
|1122(d)(2)(vii)    |  | Reconciliations are prepared on a monthly basis for all asset-backedsecurities
related bank accounts, including custodial accounts andrelated bank clearing accounts. These reconciliations are (A)mathematically accurate; (B) prepared within 30 calendar days after thebank statement cutoff date, or such other number
of days specified inthe transaction agreements; (C) reviewed and approved by someoneother than the person who prepared the reconciliation; and (D) containexplanations for reconciling items. These reconciling items are resolvedwithin
90 calendar days of their original identification, or such othernumber of days specified in the transaction agreements. |  | X                                                                                      |  |                                                                                          
|                   |  | Investor Remittances and Reporting                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |  |                                                                                        |  |                                                                                          
|1122(d)(3)(i)      |  | Reports to investors, including those to be filed with the Commission, are maintained in
accordance with the transaction agreements and applicable Commission requirements. Specifically, such reports (A) are prepared in accordance with timeframes and other terms set forth in the transaction agreements; (B) provide information calculated
in accordance with the terms specified in the transaction agreements; (C) are filed with the Commission as required by its rules and regulations; and (D) agree with investors or the trustees records as to the total unpaid principal
balance and number of pool assets serviced by the Servicer.                                     |  | X                                                                                      |  |                                                                                          
|1122(d)(3)(ii)     |  | Amounts due to investors are allocated and remitted in accordance with timeframes,
distribution priority and other terms set forth in the transaction agreements.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |  | X                                                                                      |  |                                                                                          
|1122(d)(3)(iii)    |  | Disbursements made to an investor are posted within two business days to the Servicers
investor records, or such other number of days specified in the transaction agreements.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |  | X                                                                                      |  |                                                                                          
|1122(d)(3)(iv)     |  | Amounts remitted to investors per the investor reports agree with cancelled checks, or other
form of payment, or custodial bank statements.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |  | X                                                                                      |  |                                                                                          
|                   |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | 
|                   |  | Pool Asset Administration                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |  |                                                                                        |  |                                                                                          
|1122(d)(4)(i)      |  | Collateral or security on pool assets is maintained as required by the transaction
agreements or related mortgage loan documents.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |  | X                                                                                      |  |                                                                                          
|1122(d)(4)(ii)     |  | Pool asset and related documents are safeguarded as required by the transaction agreements                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |  |                                                                                        |  | X                                                                                        
|1122(d)(4)(iii)    |  | Any additions, removals or substitutions to the asset pool are made, reviewed and approved
in accordance with any conditions or requirements in the transaction agreements.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |  | X                                                                                      |  |                                                                                          
|1122(d)(4)(iv)     |  | Payments on pool assets, including any payoffs, made in accordance with the related pool
asset documents are posted to the Servicers obligor records maintained no more than two business days after receipt, or such other number of days specified in the transaction agreements, and allocated to principal, interest or other items
(e.g., escrow) in accordance with the related pool asset documents.                                                                                                                                                                                                                                                                                |  | X                                                                                      |  |                                                                                          
|1122(d)(4)(v)      |  | The Servicers records regarding the pool assets agree with the Servicers records
with respect to an obligors unpaid principal balance.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |  |                                                                                        |  | X                                                                                        



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|                   |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |  |                                                                                        |  |                                                                                         
|------------------ |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | -------------------------------------------------------------------------------------- |  | ----------------------------------------------------------------------------------------
|SERVICING CRITERIA |  | SERVICING CRITERIA                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
|Reg AB Reference   |  | Criteria                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |  | Applicable toResidentialFundingCompany,LLC
asMasterServicer andSecuritiesAdministrator |  | Inapplicableto
ResidentialFundingCompany,LLC asMasterServicer andSecuritiesAdministrator
|1122(d)(4)(vi)     |  | Changes with respect to the terms or status of an obligors pool assets (e.g., loan
modifications or re-agings) are made, reviewed and approved by authorized personnel in accordance with the transaction agreements and related pool asset documents.                                                                                                                                                                                                                                                                                                                               |  | X                                                                                      |  |                                                                                         
|1122(d)(4)(vii)    |  | Loss mitigation or recovery actions (e.g., forbearance plans, modifications and deeds in
lieu of foreclosure, foreclosures and repossessions, as applicable) are initiated, conducted and concluded in accordance with the timeframes or other requirements established by the transaction agreements.                                                                                                                                                                                                                                                                                |  | X                                                                                      |  |                                                                                         
|1122(d)(4)(viii)   |  | Records documenting collection efforts are maintained during the period a pool asset is
delinquent in accordance with the transaction agreements. Such records are maintained on at least a monthly basis, or such other period specified in the transaction agreements, and describe the entitys activities in monitoring delinquent pool
assets including, for example, phone calls, letters and payment rescheduling plans in cases where delinquency is deemed temporary (e.g., illness or unemployment).                                                                        |  |                                                                                        |  | X                                                                                       
|1122(d)(4)(ix)     |  | Adjustments to interest rates or rates of return for pool assets with variable rates are
computed based on the related pool asset documents.                                                                                                                                                                                                                                                                                                                                                                                                                                          |  | X                                                                                      |  |                                                                                         
|1122(d)(4)(x)      |  | Regarding any funds held in trust for an obligor (such as escrow accounts): (A) such funds
are analyzed, in accordance with the obligors pool asset documents, on at least an annual basis, or such other period specified in the transaction agreements; (B) interest on such funds is paid, or credited, to obligors in accordance with
applicable pool asset documents and state laws; and (C) such funds are returned to the obligor within 30 calendar days of full repayment of the related pool assets, or such other number of days specified in the transaction agreements. |  |                                                                                        |  | X                                                                                       
|1122(d)(4)(xi)     |  | Payments made on behalf of an obligor (such as tax or insurance payments) are made on or
before the related penalty or expiration dates, as indicated on the appropriate bills or notices for such payments, provided that such support has been received by the Servicer at least 30 calendar days prior to these dates, or such other number of
days specified in the transaction agreements.                                                                                                                                                                                       |  |                                                                                        |  | X                                                                                       
|1122(d)(4)(xii)    |  | Any late payment penalties in connection with any payment to be made on behalf of an obligor
are paid from the Servicers funds and not charged to the obligor, unless the late payment was due to the obligors error or omission.                                                                                                                                                                                                                                                                                                                                                   |  |                                                                                        |  | X                                                                                       
|1122(d)(4)(xiii)   |  | Disbursements made on behalf of an obligor are posted within two business days to the
obligors records maintained by the Servicer, or such other number of days specified in the transaction agreements.                                                                                                                                                                                                                                                                                                                                                                             |  |                                                                                        |  | X                                                                                       
|1122(d)(4)(xiv)    |  | Delinquencies, charge-offs and uncollectible accounts are recognized and recorded in
accordance with the transaction agreements.                                                                                                                                                                                                                                                                                                                                                                                                                                                      |  | X                                                                                      |  |                                                                                         
|1122(d)(4)(xv)     |  | Any external enhancement or other support, identified in Item 1114(a)(1) through (3) or Item
1115 of Regulation AB, is maintained as set forth in the transaction agreements.                                                                                                                                                                                                                                                                                                                                                                                                         |  | X                                                                                      |  |                                                                                         





---

APPENDIX B



|          |  |           |  |           |  |         
|--------- |  | --------- |  | --------- |  | --------
|2007-EMX1 |  | 2007-S5   |  | 2006-QA1  |  | 2006-RZ1
|2007-HI1  |  | 2007-S6   |  | 2006-QA10 |  | 2006-RZ2
|2007-HSA1 |  | 2007-S7   |  | 2006-QA11 |  | 2006-RZ3
|2007-HSA2 |  | 2007-S8   |  | 2006-QA2  |  | 2006-RZ4
|2007-HSA3 |  | 2007-S9   |  | 2006-QA3  |  | 2006-RZ5
|2007-KS1  |  | 2007-SA1  |  | 2006-QA4  |  | 2006-S1 
|2007-KS2  |  | 2007-SA2  |  | 2006-QA5  |  | 2006-S10
|2007-KS3  |  | 2007-SA3  |  | 2006-QA6  |  | 2006-S11
|2007-KS4  |  | 2007-SA4  |  | 2006-QA7  |  | 2006-S12
|2007-QA1  |  | 2007-SP1  |  | 2006-QA8  |  | 2006-S2 
|2007-QA2  |  | 2007-SP2  |  | 2006-QA9  |  | 2006-S3 
|2007-QA3  |  | 2007-SP3  |  | 2006-QH1  |  | 2006-S4 
|2007-QA4  |  | 2006-EFC1 |  | 2006-QO1  |  | 2006-S5 
|2007-QA5  |  | 2006-EFC2 |  | 2006-QO10 |  | 2006-S6 
|2007-QH1  |  | 2006-EMX1 |  | 2006-QO2  |  | 2006-S7 
|2007-QH2  |  | 2006-EMX2 |  | 2006-QO3  |  | 2006-S8 
|2007-QH3  |  | 2006-EMX3 |  | 2006-QO4  |  | 2006-S9 
|2007-QH4  |  | 2006-EMX4 |  | 2006-QO5  |  | 2006-SA1
|2007-QH5  |  | 2006-EMX5 |  | 2006-QO6  |  | 2006-SA2
|2007-QH6  |  | 2006-EMX6 |  | 2006-QO7  |  | 2006-SA3
|2007-QH7  |  | 2006-EMX7 |  | 2006-QO8  |  | 2006-SA4
|2007-QH8  |  | 2006-EMX8 |  | 2006-QO9  |  | 2006-SP1
|2007-QH9  |  | 2006-EMX9 |  | 2006-QS1  |  | 2006-SP2
|2007-QO1  |  | 2006-HI1  |  | 2006-QS10 |  | 2006-SP3
|2007-QO2  |  | 2006-HI2  |  | 2006-QS11 |  | 2006-SP4
|2007-QO3  |  | 2006-HI3  |  | 2006-QS12 |  |         
|2007-QO4  |  | 2006-HI4  |  | 2006-QS13 |  | 2006-C4 
|2007-QO5  |  | 2006-HI5  |  | 2006-QS14 |  | 2006-C5 
|2007-QS1  |  | 2006-HSA1 |  | 2006-QS15 |  |         
|2007-QS10 |  | 2006-HSA2 |  | 2006-QS16 |  |         
|2007-QS11 |  | 2006-HSA3 |  | 2006-QS17 |  |         
|2007-QS2  |  | 2006-HSA4 |  | 2006-QS18 |  |         
|2007-QS3  |  | 2006-HSA5 |  | 2006-QS2  |  |         
|2007-QS4  |  | 2006-KS1  |  | 2006-QS3  |  |         
|2007-QS5  |  | 2006-KS2  |  | 2006-QS4  |  |         
|2007-QS6  |  | 2006-KS3  |  | 2006-QS5  |  |         
|2007-QS7  |  | 2006-KS4  |  | 2006-QS6  |  |         
|2007-QS8  |  | 2006-KS5  |  | 2006-QS7  |  |         
|2007-QS9  |  | 2006-KS6  |  | 2006-QS8  |  |         
|2007-RS1  |  | 2006-KS7  |  | 2006-QS9  |  |         
|2007-RS2  |  | 2006-KS8  |  | 2006-RS1  |  |         
|2007-RZ1  |  | 2006-KS9  |  | 2006-RS2  |  |         
|2007-S1   |  | 2006-NC1  |  | 2006-RS3  |  |         
|2007-S2   |  | 2006-NC2  |  | 2006-RS4  |  |         
|2007-S3   |  | 2006-NC3  |  | 2006-RS5  |  |         
|2007-S4   |  |           |  | 2006-RS6  |  |         



|                 |  |                |  |  
|---------------- |  | -------------- |  | -
|2007-2N          |  | 2006-BAFC-1    |  |  
|2007-DBALT-OA1   |  | 2006-BAFC-5    |  |  
|2007-DBALT-RAMP1 |  | 2006-DBALT-AR1 |  |  
|2007-DLJMC-HCSB  |  | 2006-HWH10     |  |  
|2007-GSR-AR1     |  | 2006-HWH17     |  | -



---

|                   |  |               |  |  |  | 
|------------------ |  | ------------- |  |  |  | 
|2007-GSR-OA1       |  | 2006-HWH19    |  |  |  | 
|2007-GSR-OA2       |  | 2006-KWH1     |  |  |  | 
|2007-HALO-AR2      |  | 2006-KWH3B    |  |  |  | 
|2007-HEL1          |  | 2006-LUM-5    |  |  |  | 
|2007-HV2           |  | 2006-LUM-6    |  |  |  | 
|2007-HV7           |  | 2006-MARM-OA1 |  |  |  | 
|2007-LUM-2         |  | 2006-MARM-OA2 |  |  |  | 
|2007-LXS-12N       |  | 2006-POWH13   |  |  |  | 
|2007-LXS-15N       |  | 2006-POWH13B  |  |  |  | 
|2007-LXS-4N LEHMAN |  | 2006-POWH16   |  |  |  | 
|2007-MANA-A2       |  | 2006-POWH16B  |  |  |  | 
|2007-MANA-AF1      |  | 2006-POWH17   |  |  |  | 
|2007-MANA-OAR3     |  | 2006-POWH17B  |  |  |  | 
|2007-MANA-OAR4     |  | 2006-POWH18   |  |  |  | 
|2007-MARM-3        |  | 2006-POWH18B  |  |  |  | 
|2007-POWH3         |  | 2006-POWH20   |  |  |  | 
|2007-QRWH1         |  | 2006-POWH21   |  |  |  | 
|2007-SARM-06       |  | 2006-POWH22   |  |  |  | 
|2007-SARM-3 LEHMAN |  | 2006-QWH20    |  |  |  | 
|2001-PTWH11        |  | 2006-QWH8     |  |  |  | 
|2003-PTWH18        |  | 2006-WH1      |  |  |  | 
|2005-QWH13         |  | 2006-WH11     |  |  |  | 
|2005-QWH7          |  | 2006-WH12     |  |  |  | 
|2005-WH20          |  | 2006-WH21     |  |  |  | 
|2005-WH25A         |  |               |  |  |  | 
|2005-WH25B         |  |               |  |  |  | 
|2005-WH28B         |  |               |  |  |  | 
|2005-WH29          |  |               |  |  |  | 

2007-ACE SL1

2007-HALO AR1

2007-MARM1

2007-RFC1

2006-18N

2006-BAFC6

2006-CMLT1 AAR7

2006-D

2006-DBALT-AF1

2006-GSAA1

2006-GSAMP HE8

2006-GSR-AR2

2006-LUM3

2006-MARM-OA3

2006-RFC1 CCM