Statement to Certificateholder

Distribution Information

Deal Information

1. Distribution Summary

Deal Name:

Residential Funding Mtg Sec I, 2007-SA1

2. Factor Summary

Asset Type:

Mortgage Pass-Through Certificates

3. Components Information

(Not Applicable)

Closing Date:

01/30/2007

4. Interest Summary

First Distribution Date:

02/25/2007

5. Other Income Detail

(Not Applicable)

Determination Date:

04/23/2007

6. Interest Shortfalls, Compensation and Expenses

Distribution Date:

04/25/2007

Record Date:

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

(Not Applicable)

Book-Entry:

03/30/2007

8. Collateral Summary

Definitive:

03/30/2007

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) :

40466,40469,40467,40468

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

05/03/2007

6:24:06PM

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

Page 1 of 21

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA1

April 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-1					74958WAA4	14,716,000.00				13,817,891.46				5.78243622			1,132,622.73			64,974.78				1,197,597.51			0.00		0.00			0.00			12,685,268.73


II-A-1					74958WAB2	100,000,000.00				98,031,940.99				5.64052388			1,483,199.58			460,792.92				1,943,992.50			0.00		0.00			0.00			96,548,741.41


II-A-2					74958WAC0	82,455,000.00				80,832,236.94				5.64052388			1,222,972.21			379,946.80				1,602,919.01			0.00		0.00			0.00			79,609,264.73


II-A-3					74958WAD8	3,830,000.00				3,754,623.34				5.64052388			56,806.54			17,648.37				74,454.91			0.00		0.00			0.00			3,697,816.80

									1			1																										1
II-A-X					74958WAE6	186,285,000.00				182,618,801.27				0.30000000			0.00			45,654.70				45,654.70			0.00		0.00			0.00			179,855,822.94



III-A					74958WAF3	57,954,000.00				56,923,666.51				5.95301365			1,365,667.96			282,389.47				1,648,057.43			0.00		0.00			0.00			55,557,998.55


IV-A					74958WAG1	38,604,000.00				37,851,077.42				5.99508324			18,561.16			189,100.30				207,661.46			0.00		0.00			0.00			37,832,516.26


R-I					74958WAH9	34.00				0.00				0.00000000			0.00			0.00				0.00			0.00		0.00			0.00			0.00


R-II					74958WAJ5	33.00				0.00				0.00000000			0.00			0.00				0.00			0.00		0.00			0.00			0.00


R-III					74958WAK2	33.00				0.00				0.00000000			0.00			0.00				0.00			0.00		0.00			0.00			0.00


M-1					74958WAL0	4,973,700.00				4,972,729.73				5.94222200			603.09			24,595.57				25,198.66			0.00		0.00			0.00			4,972,126.64


M-2					74958WAM8	3,107,600.00				3,106,993.77				5.94222112			376.82			15,367.47				15,744.29			0.00		0.00			0.00			3,106,616.95


M-3					74958WAN6	1,709,200.00				1,708,866.57				5.94221935			207.25			8,452.21				8,659.46			0.00		0.00			0.00			1,708,659.32


B-1					74958WAP1	1,553,800.00				1,553,496.89				5.94221724			188.41			7,683.73				7,872.14			0.00		0.00			0.00			1,553,308.48


B-2					74958WAQ9	1,087,600.00				1,087,387.83				5.94221843			131.88			5,378.32				5,510.20			0.00		0.00			0.00			1,087,255.95


B-3					74958WAR7	777,076.82				776,925.23				5.94222432			94.23			3,842.74				3,936.97			0.00		0.00			0.00			776,831.00


			Deal Totals				310,768,076.82			304,417,836.68					5,281,431.86				1,505,827.38				6,787,259.24				0.00		0.00			0.00			299,136,404.82

		1.Notional Balance

05/03/2007

6:24:06PM

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

Page 2 of 21

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA1

April 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-1	74958WAA4	938.97060750		76.96539345	4.41524735		81.38064080	0.00000000	0.10936736	862.00521405

	II-A-1	74958WAB2	980.31940990		14.83199580	4.60792920		19.43992500	0.00000000	0.00000000	965.48741410

	II-A-2	74958WAC0	980.31940986		14.83199576	4.60792917		19.43992493	0.00000000	0.00000000	965.48741410

	II-A-3	74958WAD8	980.31940992		14.83199478	4.60792950		19.43992428	0.00000000	0.00000000	965.48741514

	II-A-X	74958WAE6	980.31940988		0.00000000	0.24507985		0.24507985	0.00000000	0.00000000	965.48741412

	III-A	74958WAF3	982.22152932		23.56468855	4.87264848		28.43733703	0.00000000	0.00000000	958.65684077

	IV-A	74958WAG1	980.49625479		0.48080924	4.89846389		5.37927313	0.00000000	0.00000000	980.01544555

	R-I	74958WAH9	0.00000000		0.00000000	0.00000000		0.00000000	0.00000000	0.00000000	0.00000000

	R-II	74958WAJ5	0.00000000		0.00000000	0.00000000		0.00000000	0.00000000	0.00000000	0.00000000

	R-III	74958WAK2	0.00000000		0.00000000	0.00000000		0.00000000	0.00000000	0.00000000	0.00000000

	M-1	74958WAL0	999.80491988		0.12125581	4.94512536		5.06638116	0.00000000	0.00576030	999.68366407

	M-2	74958WAM8	999.80492020		0.12125756	4.94512486		5.06638242	0.00000000	0.00576007	999.68366263

	M-3	74958WAN6	999.80492043		0.12125556	4.94512637		5.06638193	0.00000000	0.00575708	999.68366487

	B-1	74958WAP1	999.80492341		0.12125756	4.94512164		5.06637920	0.00000000	0.00576007	999.68366585

	B-2	74958WAQ9	999.80491909		0.12125782	4.94512688		5.06638470	0.00000000	0.00575579	999.68366127

	B-3	74958WAR7	999.80492276		0.12126214	4.94512241		5.06638456	0.00000000	0.00576520	999.68366062



	Deal Factor :			96.25712135%


	Group I Factor :			86.78484685%


	Group II Factor :			96.69395075%


	Group III Factor :			96.04005609%


	Group IV Factor :			98.08591546%

05/03/2007

6:24:06PM

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

Page 3 of 21

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA1

April 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-1	03/01/2007		03/31/2007		30/360		13,817,891.46		5.78243622	66,584.23		0.00		0.00			1,609.45		0.00		64,974.78		0.00

II-A-1	03/01/2007		03/31/2007		30/360		98,031,940.99		5.64052388	460,792.92		0.00		0.00			0.00		0.00		460,792.92		0.00

II-A-2	03/01/2007		03/31/2007		30/360		80,832,236.94		5.64052388	379,946.80		0.00		0.00			0.00		0.00		379,946.80		0.00

II-A-3	03/01/2007		03/31/2007		30/360		3,754,623.34		5.64052388	17,648.37		0.00		0.00			0.00		0.00		17,648.37		0.00

II-A-X	03/01/2007		03/31/2007		30/360		182,618,801.27	1	0.30000000	45,654.70		0.00		0.00			0.00		0.00		45,654.70		0.00


III-A	03/01/2007		03/31/2007		30/360		56,923,666.51		5.95301365	282,389.47		0.00		0.00			0.00		0.00		282,389.47		0.00

IV-A	03/01/2007		03/31/2007		30/360		37,851,077.42		5.99508324	189,100.30		0.00		0.00			0.00		0.00		189,100.30		0.00

M-1	03/01/2007		03/31/2007		30/360		4,972,729.73		5.94222200	24,624.21		0.00		0.00			28.65		0.00		24,595.57		0.00

M-2	03/01/2007		03/31/2007		30/360		3,106,993.77		5.94222112	15,385.37		0.00		0.00			17.90		0.00		15,367.47		0.00

M-3	03/01/2007		03/31/2007		30/360		1,708,866.57		5.94221935	8,462.05		0.00		0.00			9.84		0.00		8,452.21		0.00

B-1	03/01/2007		03/31/2007		30/360		1,553,496.89		5.94221724	7,692.68		0.00		0.00			8.95		0.00		7,683.73		0.00

B-2	03/01/2007		03/31/2007		30/360		1,087,387.83		5.94221843	5,384.58		0.00		0.00			6.26		0.00		5,378.32		0.00

B-3	03/01/2007		03/31/2007		30/360		776,925.23		5.94222432	3,847.22		0.00		0.00			4.48		0.00		3,842.74		0.00

Deal Totals						304,417,836.68				1,507,512.90		0.00		0.00			1,685.53		0.00		1,505,827.38		0.00



1.Notional Balance

05/03/2007

6:24:06PM

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

Page 4 of 21

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA1

April 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	3,192.93		1,507.40			1,685.53			0	0.00		2,935.88		0.00		0.00	0.00	0.00	0.00

	Group II	3,372.42		3,372.42			0.00			0	0.00		39,800.76		6,745.80		21,187.26	0.00	0.00	0.00

	Group III	318.68		318.68			0.00			0	0.00		12,698.58		2,248.26		3,660.92	0.00	0.00	0.00

	Group IV	85.04		85.04			0.00			0	0.00		8,442.68		1,648.53		0.00	0.00	0.00	0.00

	Deal Totals	6,969.07		5,283.54			1,685.53			0	0.00		63,877.90		10,642.59		24,848.18	0.00	0.00	0.00

05/03/2007

6:24:06PM

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

Page 5 of 21

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA1

April 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								41					40			N/A						1						2				0			0				0				38
	Group I


		Balance/Amount				15,369,372.24							14,471,041.87					2,946.24							9.47				1,129,800.00				N/A			0.00		0.00						13,338,286.16



		Count								413					406			N/A						79						3				0			0				0				403
	Group II


		Balance/Amount				194,553,764.58							190,885,789.68					25,169.17							453,899.20				2,285,000.00				N/A			0.00		0.00						188,121,721.31



		Count								116					115			N/A						16						2				0			0				0				113
	Group III


		Balance/Amount				60,526,410.54							59,495,561.51					6,822.30							15,640.58				1,343,500.00				N/A			0.00		0.00						58,129,598.63



		Count								65					64			N/A						20						0				0			0				0				64
	Group IV


		Balance/Amount				40,318,529.46							39,565,443.63					1,932.79							16,712.12				0.00				N/A			0.00		0.00						39,546,798.72



	Deal Totals	Count							635							625				N/A				116				7					0		0					0						618


		Balance/Amount			310,768,076.82							304,417,836.69							36,870.50					486,261.37				4,758,300.00					N/A		0.00				0.00			299,136,404.82




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
		6.08665175	6.06281012					351.22			351.22						5.78243643					5.75823682		5.78243643			N/A					N/A

	Group II
		6.24108050	6.24337732					354.95			354.95						5.94052388					5.94281252		5.94052388			N/A					N/A

	Group III
		6.25838216	6.24986881					355.72			354.80						5.95301358					5.94437408		5.95301358			N/A					N/A

	Group IV
		6.30125248	6.30120518					353.20			353.20						5.99508314					5.99503602		5.99508314			N/A					N/A

	Deal Totals
		6.24494150	6.24423244					354.70			354.53						5.94254102					5.94178998		5.94254102			N/A					N/A



C. Constant Prepayment Rate

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

05/03/2007

6:24:06PM

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

Page 6 of 21

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA1

April 25, 2007



Group-I		62.31%	43.19%	43.19%

Group-II		15.92%	12.46%	12.46%

Group-III		24.22%	14.82%	14.82%

Group-IV		0.51%	7.39%	7.39%

Deal Totals		18.83%	14.04%	14.04%

	Ending Weighted Average Months to Maturity has been revised



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
	Deal Totals


		Scheduled Balance		0.00		0.00			0.00		0.00		0.00

05/03/2007

6:24:06PM

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

Page 7 of 21

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA1

April 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						608				294,227,139.65				0			0.00								0			0.00				0				0.00							0.00						608		294,227,139.65

	30 days					9					4,431,265.17				0			0.00								0			0.00				0				0.00							0.00						9		4,431,265.17

	60 days					1					478,000.00				0			0.00								0			0.00				0				0.00							0.00						1		478,000.00

	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							618			299,136,404.82				0		0.00								0			0.00			0					0.00					0.00						618				299,136,404.82


	Current			98.38%								98.36%			0.00%						0.00%				0.00%				0.00%				0.00%		0.00%							0.00%								98.38%		98.36%

	30 days					1.46%					1.48%				0.00%						0.00%				0.00%				0.00%				0.00%		0.00%							0.00%							1.46%			1.48%

	60 days					0.16%					0.16%				0.00%						0.00%				0.00%				0.00%				0.00%		0.00%							0.00%							0.16%			0.16%

	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%

05/03/2007

6:24:06PM

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

Page 8 of 21

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA1

April 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						38						13,338,286.16		0		0.00					0			0.00				0		0.00			0.00					38			13,338,286.16

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					38					13,338,286.16			0			0.00				0				0.00				0		0.00				0.00				38			13,338,286.16


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%

05/03/2007

6:24:06PM

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

Page 9 of 21

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA1

April 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						394						184,000,456.14		0		0.00					0			0.00				0		0.00			0.00					394			184,000,456.14

30 days					8					3,643,265.17			0			0.00					0			0.00				0		0.00			0.00					8			3,643,265.17

60 days					1					478,000.00			0			0.00					0			0.00				0		0.00			0.00					1			478,000.00

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					403					188,121,721.31			0			0.00				0				0.00				0		0.00				0.00				403			188,121,721.31


Current				97.77%				97.81%						0.00%		0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				97.77%			97.81%

30 days				1.99%							1.94%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				1.99%				1.94%

60 days				0.25%							0.25%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.25%		0.25%

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%

05/03/2007

6:24:06PM

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

Page 10 of 21

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA1

April 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						112						57,341,598.63		0		0.00					0			0.00				0		0.00			0.00					112			57,341,598.63

30 days					1					788,000.00			0			0.00					0			0.00				0		0.00			0.00					1			788,000.00

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					113					58,129,598.63			0			0.00				0				0.00				0		0.00				0.00				113			58,129,598.63


Current				99.12%				98.64%						0.00%		0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				99.12%			98.64%

30 days				0.88%							1.36%		0.00%			0.00%				0.00%				0.00%				0.00%		0.00%				0.00%				0.88%				1.36%

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%

05/03/2007

6:24:06PM

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

Page 11 of 21

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA1

April 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						64						39,546,798.72		0		0.00					0			0.00				0		0.00			0.00					64			39,546,798.72

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					64					39,546,798.72			0			0.00				0				0.00				0		0.00				0.00				64			39,546,798.72


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%

05/03/2007

6:24:06PM

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

Page 12 of 21

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA1

April 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

			9	4,431,265.17			0		0.00			0		0.00			0		0.00			0		0.00
	1 Month				13 Months					25 Months					37 Months					49 Months


			1.46%	1.48%			0.00%	0.00%				0.00%		0.00%			0.00%		0.00%			0.00%		0.00%


			1	478,000.00			0		0.00			0		0.00			0		0.00			0		0.00
	2 Months				14 Months					26 Months					38 Months					50 Months


			0.16%	0.16%			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%

05/03/2007

6:24:06PM

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

Page 13 of 21

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA1

April 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



		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

05/03/2007

6:24:06PM

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

Page 14 of 21

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA1

April 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



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

05/03/2007

6:24:06PM

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

Page 15 of 21

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA1

April 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


		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

05/03/2007

6:24:06PM

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

Page 16 of 21

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA1

April 25, 2007



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



	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%


		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%

05/03/2007

6:24:06PM

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

Page 17 of 21

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA1

April 25, 2007

Subsequent Recoveries Count

Group

Subsequent Recoveries

0.00

Net Loss 1

0.00

Net Loss % 2

0.00%

Subsequent Recoveries Count

Subsequent Recoveries

0.00

Deal
Totals

Net Loss 1

0.00

Net Loss % 2

0.00%

1 Total Realized Loss less Subsequent Recoveries

2 Net Loss % of Original Balance



D. Default Percentages

	Default Loss Percentage		1 Month	3 Months	6 Months	12 Months		Life of Deal

	Group	Monthly Default Rate	0.00%	0.00%			0.00%

	I	Constant Default Rate	0.00%	0.00%			0.00%



	Group	Monthly Default Rate	0.00%	0.00%			0.00%

	II	Constant Default Rate	0.00%	0.00%			0.00%



	Group	Monthly Default Rate	0.00%	0.00%			0.00%

	III	Constant Default Rate	0.00%	0.00%			0.00%



	Group	Monthly Default Rate	0.00%	0.00%			0.00%

	IV	Constant Default Rate	0.00%	0.00%			0.00%



		Monthly Default Rate	0.00%	0.00%			0.00%

	Deal Totals	Constant Default Rate	0.00%	0.00%			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

05/03/2007

6:24:06PM

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

Page 18 of 21

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA1

April 25, 2007



15. Distribution Percentages


		Beginning Current Super		Beginning Current	Beginning Current		Beginning Current Senior

	I	0.00000000%		0.00000000%	95.48650046%	100.00000000%



	II	0.00000000%		0.00000000%	95.66914414%	100.00000000%



	III	0.00000000%		0.00000000%	95.67716493%	100.00000000%



	IV	0.00000000%		0.00000000%	95.66701129%	100.00000000%



		Ending Percentage

	M-1		1.63352114%

	M-2		1.02063460%

	M-3		0.56135560%

	Class M Total:		3.21551134%


	B-1		0.51031730%

	B-2		0.35720240%

	B-3		0.25521672%

	Class B Total:		1.12273642%


	Ending Percentage uses Beginning Certificate Principal Balance

05/03/2007

6:24:06PM

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

Page 19 of 21

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA1

April 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

05/03/2007

6:24:06PM

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

Page 20 of 21

Statement to Certificateholder

Residential Funding Mtg Sec I, 2007-SA1

April 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 occurred


	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.

05/03/2007

6:24:06PM

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

Page 21 of 21



	Statement To Certificateholder



	Residential Funding Mortgage Securities I, 2007-SA1

	April 25, 2007



	Cash Flow Received and Uses of Funds


	Cash Flow Received		Amount

	Principal and Interest Payments		6,792,618.30
	Prepayment Premium		0.00
	Liquidation and Insurance Proceeds		0.00
	Subsequent Recoveries		0.00
	Repurchase Proceeds		0.00
	Other Deposits/Adjustments (including Derivative Payment)		5,283.54
	Total Deposits		6,797,901.84

	Uses of Funds		Amount

	Transfer to Certificate Account		6,787,259.24
	Reimbursed Advances and Expenses		0.00
	Master Servicing Compensation		10,642.60
	Derivative Payment		0.00
	Total Withdrawals		6,797,901.84

	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-SA1 Trust 10-D