Statement to Certificateholder

Distribution Information

Deal Information

1. Distribution Summary

Deal Name:

Residential Funding Mtg Sec I, 2007-SA4

2. Factor Summary

Asset Type:

Mortgage Pass-Through Certificates

3. Components Information

(Not Applicable)

Closing Date:

08/30/2007

4. Interest Summary

First Distribution Date:

09/25/2007

5. Other Income Detail

(Not Applicable)

Determination Date:

10/23/2007

6. Interest Shortfalls, Compensation and Expenses

Distribution Date:

10/25/2007

Record Date:

7. Prepayment Interest and Basis Risk/Net WAC Shortfall Amounts

(Not Applicable)

Book-Entry:

09/28/2007

8. Collateral Summary

Definitive:

09/28/2007

9. Repurchase Information

10. Loan Status Report (Delinquencies)

Trustee:

Us Bank, Inc.

11. Deal Delinquencies (30 Day Buckets)

Main Telephone:

651-495-7000

12. Loss Mitigation and Servicing Modifications

GMAC-RFC

13. Losses and Recoveries

Bond Administrator:

Rona Hsu

14. Credit Enhancement Report

(Not Applicable)

Telephone:

818-260-1508

15. Distribution Percentages

Pool(s) :

40558,40559,40560,40561,40562

16. Overcollateralization Summary

(Not Applicable)

17. Excess Cash Flow, Overcollateralization
Provisions and Derivative Amounts

(Not Applicable)

18. Performance Tests

19. Lender Paid Mortgage Insurance

(Not Applicable)

20. Comments

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 1 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007



	1. Distribution Summary

			Class	CUSIP			Original Face Value		Beginning Notional / Principal Balance	Pass - Through Rate					Principal Distribution				Interest Distribution			Total Distribution (3) + (4) = (5)			Principal Loss			Interest Loss		Deferred Interest			Ending Notional/ Principal Balance (1)-(3)-(6)+(8)=(9)





									(1)	(2)			(3)					(4)					(5)		(6)		(7)				(8)			(9)

I-A				74959AAA1	13,013,700.00			9,208,997.99			5.31466812			3,682,249.59			40,709.77				3,722,959.36			0.00		0.00			0.00			5,526,748.40


II-A				74959AAR4	6,449,100.00			6,447,598.00			5.54408138			1,683.85			29,788.34				31,472.19			0.00		0.00			0.00			6,445,914.15


III-A-1				74959AAB9	199,241,400.00			199,078,390.99			5.99076772			122,365.42			993,860.33				1,116,225.75			0.00		0.00			0.00			198,956,025.57


III-A-2				74959AAC7	9,254,400.00			9,246,828.53			5.99076772			5,683.65			46,163.00				51,846.65			0.00		0.00			0.00			9,241,144.88


IV-A-1				74959AAD5	88,282,700.00			87,696,722.85			5.79694257			30,191.79			423,644.05				453,835.84			0.00		0.00			0.00			87,666,531.06


IV-A-2				74959AAE3	4,100,600.00			4,073,382.23			5.79694257			1,402.36			19,677.64				21,080.00			0.00		0.00			0.00			4,071,979.87


V-A-1				74959AAF0	73,536,400.00			73,244,856.10			6.02197464			1,129,789.42			367,565.55				1,497,354.97			0.00		0.00			0.00			72,115,066.68


V-A-2				74959AAG8	3,415,700.00			3,402,158.05			6.02197464			52,477.71			17,073.09				69,550.80			0.00		0.00			0.00			3,349,680.34


R-I				74959AAH6	50.00			0.00			5.31466742			0.00			0.00				0.00			0.00		0.00			0.00			0.00


R-II				74959AAJ2	50.00			0.00			5.31466742			0.00			0.00				0.00			0.00		0.00			0.00			0.00


M-1				74959AAK9	7,261,500.00			7,260,791.46			5.92234280			697.18			35,832.12				36,529.30			0.00		0.00			0.00			7,260,094.28


M-2				74959AAL7	3,941,800.00			3,941,415.38			5.92234255			378.45			19,450.95				19,829.40			0.00		0.00			0.00			3,941,036.93


M-3				74959AAM5	1,659,700.00			1,659,538.06			5.92234685			159.35			8,189.85				8,349.20			0.00		0.00			0.00			1,659,378.71


B-1				74959AAN3	2,489,600.00			2,489,357.08			5.92234361			239.03			12,285.02				12,524.05			0.00		0.00			0.00			2,489,118.05


B-2				74959AAP8	1,452,300.00			1,452,158.29			5.92233785			139.43			7,166.42				7,305.85			0.00		0.00			0.00			1,452,018.86


B-3				74959AAQ6	829,866.06			829,785.09			5.92233346			79.68			4,095.00				4,174.68			0.00		0.00			0.00			829,705.41


		Deal Totals				414,928,866.06		410,031,980.10				5,027,536.91				2,025,501.13				7,053,038.04				0.00		0.00			0.00			405,004,443.19

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 2 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007



2. Factor Summary
Amount /Original Amount per $1000 unit)

	Class	CUSIP		Beginning Notional/ Principal Balance Factor	Principal Distribution Factor	Interest Distribution Factor	Total Distribution Factor		Deferred Interest Factor	Interest Shortfall Factor	Ending Notional/ Principal Balance Factor




	I-A	74959AAA1	707.63871843		282.95178082	3.12822410		286.08000492	0.00000000	0.00583001	424.68693761

	II-A	74959AAR4	999.76709929		0.26109845	4.61899180		4.88009025	0.00000000	0.00000000	999.50600084

	III-A-1	74959AAB9	999.18185171		0.61415660	4.98822198		5.60237857	0.00000000	0.00000000	998.56769512

	III-A-2	74959AAC7	999.18185188		0.61415651	4.98822182		5.60237833	0.00000000	0.00000000	998.56769537

	IV-A-1	74959AAD5	993.36249175		0.34198988	4.79872104		5.14071092	0.00000000	0.00000000	993.02050187

	IV-A-2	74959AAE3	993.36249085		0.34198898	4.79872214		5.14071112	0.00000000	0.00000000	993.02050188

	V-A-1	74959AAF0	996.03537976		15.36367595	4.99841643		20.36209238	0.00000000	0.00000000	980.67170381

	V-A-2	74959AAG8	996.03538074		15.36367655	4.99841614		20.36209269	0.00000000	0.00000000	980.67170419

	R-I	74959AAH6	0.00000000		0.00000000	0.00000000		0.00000000	0.00000000	0.00000000	0.00000000

	R-II	74959AAJ2	0.00000000		0.00000000	0.00000000		0.00000000	0.00000000	0.00000000	0.00000000

	M-1	74959AAK9	999.90242512		0.09601047	4.93453419		5.03054465	0.00000000	0.00026992	999.80641465

	M-2	74959AAL7	999.90242529		0.09600944	4.93453498		5.03054442	0.00000000	0.00026891	999.80641585

	M-3	74959AAM5	999.90242815		0.09601133	4.93453636		5.03054769	0.00000000	0.00027113	999.80641682

	B-1	74959AAN3	999.90242609		0.09601141	4.93453567		5.03054708	0.00000000	0.00026912	999.80641469

	B-2	74959AAP8	999.90242374		0.09600633	4.93453143		5.03053777	0.00000000	0.00026854	999.80641741

	B-3	74959AAQ6	999.90243004		0.09601549	4.93453124		5.03054674	0.00000000	0.00026510	999.80641454



	Deal Factor :			97.60816282%


	Group I Factor :			44.91335722%


	Group II Factor :			99.95074868%


	Group III Factor :			99.86201306%


	Group IV Factor :			99.33032140%


	Group V Factor :			98.14926199%

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 3 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007



4. Interest Summary
The following section only reports information for classes that have accrued interest for this distribution.

Class		Accrual Period			Accrual Methodology	Beginning Notional/Principal Balance		Pass- Through Rate	Optimal Interest		Interest Loss			Deferred Interest		Interest Shortfall Amount		Other Income		Interest Distribution (1)-(2)-(3)- (4)+(5)=(6)		Accrued Certificate Interest Remaining Unpaid






		Start		End						(1)		(2)			(3)		(4)		(5)		(6)
I-A	09/01/2007		09/30/2007		30/360		9,208,997.99	5.31466812	40,785.63		0.00		0.00			75.87		0.00		40,709.77		0.00

II-A	09/01/2007		09/30/2007		30/360		6,447,598.00	5.54408138	29,788.34		0.00		0.00			0.00		0.00		29,788.34		0.00

III-A-1	09/01/2007		09/30/2007		30/360		199,078,390.99	5.99076772	993,860.33		0.00		0.00			0.00		0.00		993,860.33		0.00

III-A-2	09/01/2007		09/30/2007		30/360		9,246,828.53	5.99076772	46,163.00		0.00		0.00			0.00		0.00		46,163.00		0.00

IV-A-1	09/01/2007		09/30/2007		30/360		87,696,722.85	5.79694257	423,644.05		0.00		0.00			0.00		0.00		423,644.05		0.00

IV-A-2	09/01/2007		09/30/2007		30/360		4,073,382.23	5.79694257	19,677.64		0.00		0.00			0.00		0.00		19,677.64		0.00

V-A-1	09/01/2007		09/30/2007		30/360		73,244,856.10	6.02197464	367,565.55		0.00		0.00			0.00		0.00		367,565.55		0.00

V-A-2	09/01/2007		09/30/2007		30/360		3,402,158.05	6.02197464	17,073.09		0.00		0.00			0.00		0.00		17,073.09		0.00

M-1	09/01/2007		09/30/2007		30/360		7,260,791.46	5.92234280	35,834.08		0.00		0.00			1.96		0.00		35,832.12		0.00

M-2	09/01/2007		09/30/2007		30/360		3,941,415.38	5.92234255	19,452.01		0.00		0.00			1.06		0.00		19,450.95		0.00

M-3	09/01/2007		09/30/2007		30/360		1,659,538.06	5.92234685	8,190.29		0.00		0.00			0.45		0.00		8,189.85		0.00

B-1	09/01/2007		09/30/2007		30/360		2,489,357.08	5.92234361	12,285.69		0.00		0.00			0.67		0.00		12,285.02		0.00

B-2	09/01/2007		09/30/2007		30/360		1,452,158.29	5.92233785	7,166.82		0.00		0.00			0.39		0.00		7,166.42		0.00

B-3	09/01/2007		09/30/2007		30/360		829,785.09	5.92233346	4,095.23		0.00		0.00			0.22		0.00		4,095.00		0.00

Deal Totals						410,031,980.10			2,025,581.75		0.00		0.00			80.62		0.00		2,025,501.13		0.00

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 4 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007


6. Interest Shortfalls, Compensation and Expenses

			Current Prepayment Interest Shortfall Amount		Compensating Interest			Net Prepayment Interest Shortfall Amount (1) - (2)=(3)		Civil Relief Act	Civil Relief Act	Compensation				Advances			Allowable Expenses per	Non - Recoverable Advances





			(1)			(2)			(3)			Subservicer		Master		Subservicer		Master



	Group I	1,100.07		1,019.45			80.62			0	0.00		3,147.40		0.00		0.00	0.00	0.00	0.00

	Group II	0.90		0.90			0.00			0	0.00		1,589.07		0.00		2,750.00	0.00	0.00	0.00

	Group III	516.25		516.25			0.00			0	0.00		50,855.55		0.00		15,025.73	0.00	0.00	0.00

	Group IV	79.10		79.10			0.00			0	0.00		21,312.50		0.00		4,436.07	0.00	0.00	0.00

	Group V	2,738.78		2,738.78			0.00			0	0.00		16,622.00		0.00		7,380.10	0.00	0.00	0.00

	Deal Totals	4,435.10		4,354.48			80.62			0	0.00		93,526.52		0.00		29,591.90	0.00	0.00	0.00

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 5 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007



8. Collateral Summary

A. Loan Count and Balances

						Original Loan Count/ Scheduled Principal Balance							Beginning Loan Count/ Scheduled Principal Balance						Scheduled Principal		Curtailments				Payoffs					Matured Loans		Repurchases			Beginning Aggregate Scheduled Principal Balance of Liquidations/ Charge-offs					Ending Loan Count/Scheduled Principal Balance




		Count							31					23			N/A					4					8				0			0				0				15
	Group I


		Balance/Amount			13,591,516.64							9,786,677.61					365.99						1,029.64			3,680,875.56				N/A			0.00		0.00						6,104,406.42



		Count							14					14			N/A					1					0				0			0				0				14
	Group II


		Balance/Amount			6,735,453.60							6,733,886.03					1,549.73						200.00			0.00				N/A			0.00		0.00						6,732,136.30



		Count							369					369			N/A					53					0				0			0				0				369
	Group III


		Balance/Amount			217,750,220.91							217,578,711.80					21,366.07						107,591.68			0.00				N/A			0.00		0.00						217,449,754.05



		Count							159					158			N/A					23					0				0			0				0				158
	Group IV


		Balance/Amount			96,483,942.12							95,870,079.21					15,789.56						16,479.84			0.00				N/A			0.00		0.00						95,837,809.81



		Count							124					124			N/A					20					1				0			0				0				123
	Group V


		Balance/Amount			80,367,732.79							80,062,625.44					508.62						181,880.21			999,900.00				N/A			0.00		0.00						78,880,336.61



	Deal Totals	Count						697							688				N/A			101			9					0		0					0						679


		Balance/Amount		414,928,866.06							410,031,980.09							39,579.97				307,181.37			4,680,775.56					N/A		0.00				0.00			405,004,443.19




B. Weighted Averages

		Beginning Weighted Average Gross Mortgage Rate	Ending Weighted Average Gross Mortgage Rate				Ending Weighted Average Remaining Amortization Term			Ending Weighted Average Months to Maturity						Beginning Weighted Average Net Mortgage				Ending Weighted Average Net Mortgage		Beginning Weighted Average Unmodified Net Mortgage		Net Weighted Average Cap Rate				Weighted Average Net Rate

	Group I
		5.68502752	5.80575533				354.48			354.48						5.31466742				5.43818659		5.31466742		N/A					N/A

	Group II
		5.82726347	5.82726417				355.50			355.50						5.54408172				5.54408244		5.54408172		N/A					N/A

	Group III
		6.27137345	6.27151317				356.45			355.63						5.99076772				5.99089614		5.99076772		N/A					N/A

	Group IV
		6.06375408	6.06379114				355.70			355.46						5.79694257				5.79697661		5.79694257		N/A					N/A

	Group V
		6.27285020	6.27390693				355.57			355.57						6.02197464				6.02301905		6.02197464		N/A					N/A

	Deal Totals
		6.20182956	6.20842072				356.06			355.56						5.92806960				5.93550679		5.92806960		N/A					N/A

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 6 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007



C. Constant Prepayment Rate

		1 Month CPR	3 Month CPR	6 Month CPR	12 Month CPR	Life CPR


	Group-I	99.65%				99.18%

	Group-II	0.04%				0.02%

	Group-III	0.59%				0.71%

	Group-IV	0.21%				3.76%

	V	16.34%				10.60%

	Deal Totals	13.66%				13.42%



9. Repurchases

			Breaches Of Representations			ARM Conversions		Optional Repurchases of Defaulted Loans		Others		Total (1)+(2)+(3)+(4)=(5)
				(1)	(2)		(3)			(4)		(5)
		Count				0			0		0		0
				0


	Group I
		Scheduled Balance		0.00		0.00			0.00		0.00			0.00


		Count				0			0		0		0
				0


	Group II
		Scheduled Balance		0.00		0.00			0.00		0.00			0.00


		Count				0			0		0		0
				0


	Group III
		Scheduled Balance		0.00		0.00			0.00		0.00			0.00


		Count				0			0		0		0
				0


	Group IV
		Scheduled Balance		0.00		0.00			0.00		0.00			0.00


		Count				0			0		0		0
				0


	Group V
		Scheduled Balance		0.00		0.00			0.00		0.00			0.00



		Count		0		0			0		0		0
	Deal Totals


		Scheduled Balance		0.00		0.00			0.00		0.00		0.00

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 7 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007


10. Loan Status Report
													Delinquency Calculation Method: Mortgage Bankers Association

					Current / Delinquent																	Bankruptcy								Foreclosure								REO																Total
	Deal Totals

		Count								Scheduled Balance					Count				Scheduled Balance				Count				Scheduled Balance					Count			Scheduled Balance				Actual Balance						Count								Scheduled Balance

	Current						669				399,593,659.04				0			0.00								0			0.00				0				0.00							0.00						669		399,593,659.04

	30 days					8					4,430,784.15				0			0.00								0			0.00				0				0.00							0.00						8		4,430,784.15

	60 days					2					980,000.00				0			0.00								0			0.00				0				0.00							0.00						2		980,000.00

	90 days					0					0.00				0			0.00								0			0.00				0				0.00							0.00						0		0.00

	120 days					0					0.00				0			0.00								0			0.00				0				0.00							0.00						0		0.00

	150 days					0					0.00				0			0.00								0			0.00				0				0.00							0.00						0		0.00

	180 days					0					0.00				0			0.00								0			0.00				0				0.00							0.00						0		0.00

	181+ days					0					0.00				0			0.00								0			0.00				0				0.00							0.00						0		0.00

	Total							679			405,004,443.19				0		0.00								0			0.00			0					0.00					0.00						679				405,004,443.19


	Current			98.53%								98.66%			0.00%						0.00%				0.00%				0.00%				0.00%		0.00%							0.00%								98.53%		98.66%

	30 days					1.18%					1.09%				0.00%						0.00%				0.00%				0.00%				0.00%		0.00%							0.00%							1.18%			1.09%

	60 days					0.29%					0.24%				0.00%						0.00%				0.00%				0.00%				0.00%		0.00%							0.00%							0.29%			0.24%

	90 days					0.00%					0.00%				0.00%						0.00%				0.00%				0.00%				0.00%		0.00%							0.00%							0.00%			0.00%

	120 days					0.00%					0.00%				0.00%						0.00%				0.00%				0.00%				0.00%		0.00%							0.00%							0.00%			0.00%

	150 days					0.00%					0.00%				0.00%						0.00%				0.00%				0.00%				0.00%		0.00%							0.00%							0.00%			0.00%

	180 days					0.00%					0.00%				0.00%						0.00%				0.00%				0.00%				0.00%		0.00%							0.00%						0.00%				0.00%

	181+ days					0.00%					0.00%				0.00%					0.00%					0.00%				0.00%				0.00%		0.00%								0.00%						0.00%			0.00%

	Total		100.00%						100.00%					0.00%		0.00%								0.00%				0.00%			0.00%			0.00%						0.00%						100.00%					100.00%

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 8 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007



			Current / Delinquent											Bankruptcy						Foreclosure					REO											Total
Group I

	Count						Scheduled Balance							Count			Scheduled Balance	Count				Scheduled Balance					Count			Scheduled Balance	Actual Balance				Count					Scheduled Balance


Current						15						6,104,406.42		0		0.00					0			0.00				0		0.00			0.00					15			6,104,406.42

30 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

60 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

90 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

120 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

150 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

180 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

181+ days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

Total					15					6,104,406.42			0			0.00				0				0.00				0		0.00				0.00				15			6,104,406.42


Current				100.00%				100.00%						0.00%		0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				100.00%			100.00%

30 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%				0.00%

60 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

90 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

120 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

150 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

180 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

181+ days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

Total		100.00%							100.00%				0.00%		0.00%				0.00%				0.00%			0.00%			0.00%			0.00%					100.00%		100.00%

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 9 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007



			Current / Delinquent											Bankruptcy						Foreclosure					REO											Total
Group II

	Count						Scheduled Balance							Count			Scheduled Balance	Count				Scheduled Balance					Count			Scheduled Balance	Actual Balance				Count					Scheduled Balance


Current						13						6,292,136.30		0		0.00					0			0.00				0		0.00			0.00					13			6,292,136.30

30 days					1					440,000.00			0			0.00					0			0.00				0		0.00			0.00					1			440,000.00

60 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

90 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

120 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

150 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

180 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

181+ days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

Total					14					6,732,136.30			0			0.00				0				0.00				0		0.00				0.00				14			6,732,136.30


Current				92.86%				93.46%						0.00%		0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				92.86%			93.46%

30 days				7.14%							6.54%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				7.14%				6.54%

60 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

90 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

120 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

150 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

180 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

181+ days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

Total		100.00%							100.00%				0.00%		0.00%				0.00%				0.00%			0.00%			0.00%			0.00%					100.00%		100.00%

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 10 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007



			Current / Delinquent											Bankruptcy						Foreclosure					REO											Total
Group III

	Count						Scheduled Balance							Count			Scheduled Balance	Count				Scheduled Balance					Count			Scheduled Balance	Actual Balance				Count					Scheduled Balance


Current						364						214,668,754.05		0		0.00					0			0.00				0		0.00			0.00					364			214,668,754.05

30 days					3					1,801,000.00			0			0.00					0			0.00				0		0.00			0.00					3			1,801,000.00

60 days					2					980,000.00			0			0.00					0			0.00				0		0.00			0.00					2			980,000.00

90 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

120 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

150 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

180 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

181+ days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

Total					369					217,449,754.05			0			0.00				0				0.00				0		0.00				0.00				369			217,449,754.05


Current				98.64%				98.72%						0.00%		0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				98.64%			98.72%

30 days				0.81%							0.83%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.81%				0.83%

60 days				0.54%							0.45%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.54%		0.45%

90 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

120 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

150 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

180 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

181+ days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

Total		100.00%							100.00%				0.00%		0.00%				0.00%				0.00%			0.00%			0.00%			0.00%					100.00%		100.00%

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 11 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007



			Current / Delinquent											Bankruptcy						Foreclosure					REO											Total
Group IV

	Count						Scheduled Balance							Count			Scheduled Balance	Count				Scheduled Balance					Count			Scheduled Balance	Actual Balance				Count					Scheduled Balance


Current						156						94,967,025.65		0		0.00					0			0.00				0		0.00			0.00					156			94,967,025.65

30 days					2					870,784.16			0			0.00					0			0.00				0		0.00			0.00					2			870,784.16

60 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

90 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

120 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

150 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

180 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

181+ days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

Total					158					95,837,809.81			0			0.00				0				0.00				0		0.00				0.00				158			95,837,809.81


Current				98.73%				99.09%						0.00%		0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				98.73%			99.09%

30 days				1.27%							0.91%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				1.27%				0.91%

60 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

90 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

120 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

150 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

180 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

181+ days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

Total		100.00%							100.00%				0.00%		0.00%				0.00%				0.00%			0.00%			0.00%			0.00%					100.00%		100.00%

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 12 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007



			Current / Delinquent											Bankruptcy						Foreclosure					REO											Total
Group V

	Count						Scheduled Balance							Count			Scheduled Balance	Count				Scheduled Balance					Count			Scheduled Balance	Actual Balance				Count					Scheduled Balance


Current						121						77,561,336.62		0		0.00					0			0.00				0		0.00			0.00					121			77,561,336.62

30 days					2					1,318,999.99			0			0.00					0			0.00				0		0.00			0.00					2			1,318,999.99

60 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

90 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

120 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

150 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

180 days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

181+ days					0					0.00			0			0.00					0			0.00				0		0.00			0.00					0			0.00

Total					123					78,880,336.61			0			0.00				0				0.00				0		0.00				0.00				123			78,880,336.61


Current				98.37%				98.33%						0.00%		0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				98.37%			98.33%

30 days				1.63%							1.67%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				1.63%				1.67%

60 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

90 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

120 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

150 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

180 days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

181+ days				0.00%							0.00%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.00%		0.00%

Total		100.00%							100.00%				0.00%		0.00%				0.00%				0.00%			0.00%			0.00%			0.00%					100.00%		100.00%

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 13 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007



11. Delinquency Data

			Totals				Totals					Totals					Totals					Totals
		Count % Count		Balance % Balance		Count % Count		Balance % Balance			Count % Count		Balance % Balance			Count % Count		Balance % Balance			Count % Count		Balance % Balance

			8	4,430,784.15			0		0.00			0		0.00			0		0.00			0		0.00
	1 Month				13 Months					25 Months					37 Months					49 Months


			1.18%	1.09%			0.00%	0.00%				0.00%		0.00%			0.00%		0.00%			0.00%		0.00%


			2	980,000.00			0		0.00			0		0.00			0		0.00			0		0.00
	2 Months				14 Months					26 Months					38 Months					50 Months


			0.29%	0.24%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%


			0	0.00			0		0.00			0		0.00			0		0.00			0		0.00
	3 Months				15 Months					27 Months					39 Months					51 Months


			0.00%	0.00%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%


			0	0.00			0		0.00			0		0.00			0		0.00			0		0.00
	4 Months				16 Months					28 Months					40 Months					52 Months


			0.00%	0.00%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%


			0	0.00			0		0.00			0		0.00			0		0.00			0		0.00
	5 Months				17 Months					29 Months					41 Months					53 Months


			0.00%	0.00%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%


			0	0.00			0		0.00			0		0.00			0		0.00			0		0.00
	6 Months				18 Months					30 Months					42 Months					54 Months


			0.00%	0.00%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%

			0	0.00			0		0.00			0		0.00			0		0.00			0		0.00
	7 Months				19 Months					31 Months					43 Months					55 Months


			0.00%	0.00%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%

																	0		0.00
			0	0.00			0		0.00			0		0.00								0		0.00

	8 Months				20 Months					32 Months					44 Months					56 Months


			0.00%	0.00%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%


			0	0.00			0		0.00			0		0.00			0		0.00			0		0.00
	9 Months				21 Months					33 Months					45 Months					57 Months


			0.00%	0.00%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%


			0	0.00			0		0.00			0		0.00			0		0.00			0		0.00
	10 Months				22 Months					34 Months					46 Months					58 Months


			0.00%	0.00%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%

														0.00					0.00
			0	0.00			0		0.00			0					0					0		0.00

	11 Months				23 Months					35 Months					47 Months					59 Months


			0.00%	0.00%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%

			0	0.00			0		0.00			0		0.00			0		0.00			0		0.00
	12 Months				24 Months					36 Months					48 Months					60+ Months


			0.00%	0.00%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%			0.00%		0.00%

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 14 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007



12. Loss Mitigation and Servicing Modifications


			Current			1 Payment			2 Payments				3+ Payments				Foreclosure				REO		Total

		Modification Type	Count		Scheduled Balance	Count		Scheduled Balance	Count			Scheduled Balance	Count		Scheduled Balance		Count	Scheduled Balance			Count	Scheduled Balance	Count	Scheduled Balance


Group I		Capitalizations	0		0.00	0		0.00		0		0.00		0		0.00	0		0.00	0		0.00	0	0.00


		Other Modifications	0		0.00	0		0.00		0		0.00		0		0.00	0		0.00	0		0.00	0	0.00



Group II		Capitalizations	0		0.00	0		0.00		0		0.00		0		0.00	0		0.00	0		0.00	0	0.00


		Other Modifications	0		0.00	0		0.00		0		0.00		0		0.00	0		0.00	0		0.00	0	0.00



Group III		Capitalizations	0		0.00	0		0.00		0		0.00		0		0.00	0		0.00	0		0.00	0	0.00


		Other Modifications	0		0.00	0		0.00		0		0.00		0		0.00	0		0.00	0		0.00	0	0.00



Group IV		Capitalizations	0		0.00	0		0.00		0		0.00		0		0.00	0		0.00	0		0.00	0	0.00


		Other Modifications	0		0.00	0		0.00		0		0.00		0		0.00	0		0.00	0		0.00	0	0.00



Group V		Capitalizations	0		0.00	0		0.00		0		0.00		0		0.00	0		0.00	0		0.00	0	0.00


		Other Modifications	0		0.00	0		0.00		0		0.00		0		0.00	0		0.00	0		0.00	0	0.00



		Capitalizations		0	0.00		0	0.00			0	0.00		0		0.00	0		0.00	0		0.00	0	0.00

	Deal Totals
		Other
				0	0.00		0	0.00			0	0.00		0		0.00	0		0.00	0		0.00	0	0.00

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 15 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007



				Payoffs										Repurchases					Liquidations													Total

		Current Month					Cumulative						Current Month			Cumulative			Current Month				Cumulative								Current Month						Cumulative
Modification Type

		Count			Scheduled Balance		Count		Scheduled Balance			Count			Scheduled Balance	Count	Scheduled Balance	Count		Scheduled Balance			Count		Scheduled Balance					Count					Scheduled Balance		Count		Scheduled Balance


Group I	Capitalizations		0		0.00		0			0.00			0		0.00	0	0.00	0		0.00			0				0.00			0					0.00		0				0.00


	Other Modifications		0		0.00		0			0.00			0		0.00	0	0.00	0		0.00			0				0.00			0					0.00		0		0.00



Group II	Capitalizations		0		0.00		0			0.00			0		0.00	0	0.00	0		0.00			0				0.00			0					0.00		0				0.00


	Other Modifications		0		0.00		0			0.00			0		0.00	0	0.00	0		0.00			0				0.00			0					0.00		0		0.00



Group III	Capitalizations		0		0.00		0			0.00			0		0.00	0	0.00	0		0.00			0				0.00			0					0.00		0				0.00


	Other Modifications		0		0.00		0			0.00			0		0.00	0	0.00	0		0.00			0				0.00			0					0.00		0		0.00



Group	Capitalizations		0		0.00		0			0.00			0		0.00	0	0.00	0		0.00			0				0.00			0					0.00		0				0.00


	Other Modifications		0		0.00		0			0.00			0		0.00	0	0.00	0		0.00			0				0.00			0					0.00		0		0.00



Group V	Capitalizations		0		0.00		0			0.00			0		0.00	0	0.00	0		0.00			0				0.00			0					0.00		0				0.00


	Other Modifications		0		0.00		0			0.00			0		0.00	0	0.00	0		0.00			0				0.00			0					0.00		0		0.00



Deal Totals	Capitalizations		0		0.00		0			0.00			0		0.00	0	0.00	0		0.00		0				0.00			0					0.00		0				0.00


	Other Modifications

		0		0.00		0		0.00			0			0.00	0	0.00	0		0.00		0			0.00				0					0.00		0			0.00

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 16 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007



13. Losses and Recoveries
A. Current Cycle Realized Losses

			Current Period Realized Losses		Liquidations			Charge-Offs				Servicing Modifications					Bankruptcy Losses	Total

		Loss Count			0					0				0			0		0


	Group I		Beginning Aggregate Scheduled Balance		0.00					0.00					0.00		0.00		0


		Principal Portion of Loss				0.00					0.00					0.00	0.00			0.00



		Interest Portion of Loss					0.00				0.00					0.00	0.00			0.00


		Total Realized Loss		0.00					0.00				0.00				0.00	0.00


		Loss Count			0					0				0			0		0


	Group II		Beginning Aggregate Scheduled Balance		0.00					0.00					0.00		0.00		0


		Principal Portion of Loss				0.00					0.00					0.00	0.00			0.00



		Interest Portion of Loss					0.00				0.00					0.00	0.00			0.00


		Total Realized Loss		0.00					0.00				0.00				0.00	0.00


		Loss Count			0					0				0			0		0


	Group III		Beginning Aggregate Scheduled Balance		0.00					0.00					0.00		0.00		0


		Principal Portion of Loss				0.00					0.00					0.00	0.00			0.00



		Interest Portion of Loss					0.00				0.00					0.00	0.00			0.00


		Total Realized Loss		0.00					0.00				0.00				0.00	0.00


		Loss Count			0					0				0			0		0


	Group		Beginning Aggregate Scheduled Balance		0.00					0.00					0.00		0.00		0


		Principal Portion of Loss				0.00					0.00					0.00	0.00			0.00



		Interest Portion of Loss					0.00				0.00					0.00	0.00			0.00


		Total Realized Loss		0.00					0.00				0.00				0.00	0.00


		Loss Count			0					0				0			0		0


	Group V		Beginning Aggregate Scheduled Balance		0.00					0.00					0.00		0.00		0


		Principal Portion of Loss				0.00					0.00					0.00	0.00			0.00



		Interest Portion of Loss					0.00				0.00					0.00	0.00			0.00


		Total Realized Loss		0.00					0.00				0.00				0.00	0.00

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 17 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007



		Loss Count							0					0								0		0						0


		Beginning Aggregate Scheduled Balance							0.00					0.00								0.00		0.00						0.00
	Deal Totals



		Principal Portion of Loss							0.00					0.00								0.00		0.00						0.00


		Interest Portion of Loss						0.00						0.00								0.00		0.00						0.00


		Total Realized Loss					0.00						0.00						0.00					0.00			0.00


B. Cumulative Realized Losses

			Cumulative Realized Losses	Liquidations							Charge-Offs					Servicing Modifications								Bankruptcy Losses	Total


	Group I	Loss Count		0										0								0		0				0


		Total Realized Loss				0.00									0.00								0.00	0.00					0.00



	Group II	Loss Count		0										0								0		0				0


		Total Realized Loss				0.00									0.00								0.00	0.00					0.00



	Group III	Loss Count		0										0								0		0				0


		Total Realized Loss				0.00									0.00								0.00	0.00					0.00



	Group	Loss Count		0										0								0		0				0


		Total Realized Loss				0.00									0.00								0.00	0.00					0.00



	Group V	Loss Count		0										0								0		0				0


		Total Realized Loss				0.00									0.00								0.00	0.00					0.00



	Deal Totals	Loss Count					0							0								0		0		0


		Total Realized Loss				0.00								0.00								0.00		0.00		0.00



C. Subsequent Recoveries

			Subsequent Recoveries		Current Period															Cumulative


		Subsequent Recoveries Count								0						0
	Group I
		Subsequent Recoveries									0.00						0.00


		Net Loss 1									0.00							0.00


		Net Loss % 2										0.00%									0.00%

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 18 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007



		Subsequent Recoveries Count		0			0
	Group II
		Subsequent Recoveries			0.00			0.00


		Net Loss 1			0.00				0.00


		Net Loss % 2				0.00%				0.00%


		Subsequent Recoveries Count		0			0
	Group III
		Subsequent Recoveries			0.00			0.00


		Net Loss 1			0.00				0.00


		Net Loss % 2				0.00%				0.00%


		Subsequent Recoveries Count		0			0
	Group
		Subsequent Recoveries			0.00			0.00


		Net Loss 1			0.00				0.00


		Net Loss % 2				0.00%				0.00%


		Subsequent Recoveries Count		0			0
	Group V
		Subsequent Recoveries			0.00			0.00


		Net Loss 1			0.00				0.00


		Net Loss % 2				0.00%				0.00%


		Subsequent Recoveries Count			0		0


		Subsequent Recoveries			0.00		0.00
	Deal Totals


		Net Loss 1			0.00		0.00



		Net Loss % 2	0.00%				0.00%

1 Total Realized Loss less Subsequent Recoveries
2 Net Loss % of Original Balance

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 19 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007

D. Default Percentages

Default Loss Percentage

1 Month

3 Months

6 Months

12 Months

Life of Deal

Group

Monthly Default Rate

0.00%

Constant Default Rate

0.00%

Group

Monthly Default Rate

0.00%

Constant Default Rate

0.00%

Group

Monthly Default Rate

0.00%

III

Constant Default Rate

0.00%

Group

Monthly Default Rate

0.00%

Constant Default Rate

0.00%

Group

Monthly Default Rate

0.00%

Constant Default Rate

0.00%

Monthly Default Rate

0.00%

Deal Totals

Constant Default Rate

0.00%

1-Month MDR (Current Month) = SUM(Beginning Scheduled balances of liquidating loans) / [SUM(Beginning Scheduled loan balances)- SUM(Scheduled Principal payments)]
m-Month = 3, 6, 12, months or the life of deal to date
m-Month MDR(over m months in period where n is current month)= 1-[(1-MDRn-m+1) * (1-MDRn-m+2) *.* (1-MDR n-1) * (1-MDRn)]^(1/m)
CDRm = 1- [(1- MDRm)^12],where m is number of months in period

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 20 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007



15. Distribution Percentages


		Beginning Current Super		Beginning Current	Beginning Current		Beginning Current Senior

	I	0.00000000%		0.00000000%	94.09728569%	100.00000000%



	II	0.00000000%		0.00000000%	95.74854650%	100.00000000%



	III	0.00000000%		0.00000000%	95.74705990%	100.00000000%



	IV	0.00000000%		0.00000000%	95.72340592%	100.00000000%



	V	0.00000000%		0.00000000%	95.73382552%	100.00000000%



		Ending Percentage

	M-1		1.77078662%

	M-2		0.96124585%

	M-3		0.40473381%

	Class M Total:		3.13676628%


	B-1		0.60711291%

	B-2		0.35415732%

	B-3		0.20237082%

	Class B Total:		1.16364105%


	Ending Percentage uses Beginning Certificate Principal Balance

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 21 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007


18. Performance Tests


	Current Distribution Date >= Target Distribution

		Current Distribution Date >= Target Distribution Date	False

	Current Senior Pct > Initial Senior Percent

		Current Senior Percentage > Original Senior Percentage	False

	60+ Dlq Avg Loan Balance / Subordinate Balance

		Dlq Average Loan Balance / Class M and B balance Test	True

	Aggregate Realized Loss Pct < Scheduled Loss Pct

		Aggregate Realized Loss Test	True

	Sr. Accel. % Trigger - 60+ Delinquency and CumLoss

		1st Senior Accelerated Stepdown Test	True

	Sr. Accel. % Trigger

		1st or 2nd Sr. Accel Stepdown Test	True

	Current Sub % >= 2 Times Original Sub %

		Current Subordinate Percentage >= 2 Times Original Subordinate Percentage	False

	Aggregate Realized Loss Pct < Scheduled Loss Pct

		Aggregate Realized Loss Percentage < 2nd Scheduled Loss Percentage	True

	Sr. Accel. % Trigger - Delinquent Test & Cummulati

		Delinquency Test AND Aggregate Realized Loss Test	False

	Sr. Accel. % Trigger - SubTest AND 2TimesTrigger

		Subordinate Pct > 2X Initial Subordinate Pct AND Delinquency Test AND Aggregate Realized Loss	False

	Sr. Accel. % Trigger - TriggerEvent OR 2TimesTest

		Senior Accelerated Stepdown Trigger in effect?	False

	60+ Delinq Balance OR Aggregate Loss Test

		1st or 2nd Sr. Accel Stepdown Test	True

	M-2, M-3, B-1, B-2, B-3 BegBal/PoolBal

		Class M-2 Prepayment Distribution Trigger	False

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 22 of 23

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA4

October 25, 2007



M-3, B-1, B-2, B-3 BegBal/PoolBal

	Class M-3 Prepayment Distribution Trigger	False

B-1, B-2, B-3 BegBal/PoolBal

	Class B-1 Prepayment Distribution Trigger	False

B-2, B-3 BegBal/PoolBal

	Class B-2 Prepayment Distribution Trigger	False

B-3 BegBal/PoolBal

	Class B-3 Prepayment Distribution Trigger	False



20. Comments

	Comments:	Credit Support Depletion Date has not occured


	ERISA Text:		Each beneficial owner of any Certificate (or any interest therein) which provides credit enhancement for any other Certificate and is available in book-entry form, including any such

			Class M Certificate, shall be deemed to have represented, by virtue of its acquisition or holding of such Certificate (or interest therein), that either: a) it is not an employee benefit
			or other plan subject to the prohibited transaction provision of the Employee Retirement Income Security Act of 1974, as amended('ERISA'), or Section 4975 of the Internal Revenue
			Code of 1986, as amended (a 'Plan'), or any other person (including an investment manager, a named fiduciary or a trustee of any Plan) acting, directly or indirectly, on behalf of
			purchasing any Certificate with 'plan assets' of any Plan; or b) (i) the transferee is an insurance company, (ii) the source of funds to be used by it to purchase the Certificates is an
			'insurance company general account' (within the meaning of Department of Labor Prohibited Transaction Class Exemption ('PTCE') 95-60), and (iii) the conditions set forth in
			Section I and III of PTCE 95-60 have been satisfied. Any purported beneficial owner of any such book-entry Certificate (or interest therein) to whom either (a) or (b) above does not
			apply shall indemnify and hold harmless the Company, the Trustee, the Master Servicer, any Subservicer, and the Trust Fund from and against any and all liabilities, claim, cost or
			expenses incurred by such parties as a result of its acquisition or holding of such Certificate.

10/29/2007

4:04:58PM

Residential Funding Company, LLC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors

Page 23 of 23



	Statement To Certificateholder



	Residential Funding Mtg Sec I, 2007-SA4

	October 25, 2007



	Cash Flow Received and Uses of Funds


	Cash Flow Received		Amount

	Principal and Interest Payments		7,048,683.56
	Prepayment Premium		0.00
	Liquidation and Insurance Proceeds		0.00
	Subsequent Recoveries		0.00
	Repurchase Proceeds		0.00
	Other Deposits/Adjustments (including Derivative Payment)		4,354.48
	Total Deposits		7,053,038.04

	Uses of Funds		Amount

	Transfer to Certificate Account		7,053,038.04
	Reimbursed Advances and Expenses		0.00
	Master Servicing Compensation		0.00
	Derivative Payment		0.00
	Total Withdrawals		7,053,038.04

	Ending Balance		0.00



		GMAC-RFC, 2255 North Ontario Street, Suite 400, Burbank, CA 91504, 818.260.1400, www.gmacrfc.com/investors	Appendix A

RFMSI Series 2007-SA4 Trust 10-D