March 31, 1998
Securities and Exchange Commission
Judiciary Plaza
450 Fifth Street, N.W.
Washington, D.C. 20549
Re: Preferred Credit Asset-Backed Certificates, Series 1997-1; File No.
333-21329.
Ladies and Gentlemen:
Enclosed herewith for filing on behalf of Preferred Credit Asset-Backed
Certificates, Series 1997-1 (the "Certificates") under the Pooling and
Servicing Agreement, dated as of March 1, 1997, by and among Credit Suisse
First Boston Mortgage Securities Corp. (the "Depositor"), Preferred Credit
Corporation, (the "Seller"), Advanta Mortgage Corp. USA, (the "Servicer"),
and Bankers Trust Company, (the "Trustee") is a Current Report on Form 8-K.
The Preferred Credit Asset-Backed Certificates, Series 1997-1 (the
"Certificates") will be represent beneficial interests in a trust, the assets
of which will consist primarily of a pool of fixed rate, closed-end no or low
equity loans secured by subbordinate lien mortgages on residential one- to
four-family properties (the "Mortgage Loans" and together with all other assets
of the trust fund, including any funds on deposit in the Capitalized Interest
Account (as defined in the Prospectus Supplement dated March 17, 1997) and the
Pre-Funding Account (as defined in the Prospectus Supplement dated March 17,
1997), the "Trust Fund") originated or purchased by the Seller, in the ordinary
course of its business and conveyed, together with certain related property
described in the Prospectus Supplement dated March 17, 1997, by the Seller to
the Depositor and then conveyed by the Depositor to the Trust Fund. The Trust
Fund will be created and the Certificates will be issued pursuant to a Pooling
and Servicing Agreement (the "Pooling and Servicing Agreement").
The Certificates were registered under the Securities Act of 1933. As a
result, the Registrant is subject to the filing requirements of Section 15(d)
of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). The
Trust intends to fulfill these filing requirements in the manner described
herein:
The agent for Registrant will file, promptly after each Distribution Date as
defined in the Indenture Agreement), a Current Report on Form 8-K including
as an exhibit thereto the applicable Distribution Date Report. Each such
Current Report will also disclose under Item 5 any matter occurring during
the relevant reporting period which would be reportable under Item 1, 2, 4 or
5 of Part II of Form 10-Q.
Within 90 days after the end of each fiscal year, the agent for the Registrant
will file an annual report of Form 10-K, which responds to Items 2, 3, and 4
of Part I, Items 5 and 9 of Part II, Items 12 and 13 of Part III and Item 14
of Part IV thereof, and include as exhibits thereto certain information from
the Distribution Date reports aggregated for such year and a copy of the
independent accountants' annual compliance statement required under the
Indenture.
The agent for the Registrant will follow the above procedures except for any
fiscal year as to which its reporting obligations under Section 15(d) of the
Exchange Act have been suspended pursuant to such Section. In such event, the
agent for the Registrant will file a Form 15 as required under Rule 15d-6.
Should you wish to discuss the above filing procedures, please call Judy L.
Gomez at (714) 253-7562.
Sincerely,
/s/ Judy L. Gomez
Assistant Vice President
Bankers Trust Company of California, N.A.
S.E.C. Reporting Agent for Credit Suisse First Boston Mortgage Securities Corp.
Preferred Credit Asset-Backed Cetificates, Series 1997-1
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
Current Report Pursuant To Section 13 or 15(d) of the
Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): April 25, 1997
Preferred Credit Corporation (as Seller under a Pooling and Servicing Agreement
dated as of March 1, 1997, providing for the issuance of the Preferred Credit
Asset-Backed Certificates, Series 1997-1.
CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP.
(Exact name of Registrant as specified in its Charter)
DELAWARE
(State or Other Jurisdiction of Incorporation)
333-21329 13-3320910
(Commission File Number) (I.R.S. Employer
Identification No.)
11 MADISON AVENUE
NEW YORK, NEW YORK 10010-3629
(Address of principal executive offices) (Zip Code)
Registrant's Telephone Number, Including Area Code: (212) 325-2000
ITEM 5. Other Events
Attached hereto are copies of the Monthly Remittance Statements to the
Certificateholders which were derived from the monthly information submitted
by the Master Servicer to the Trustee.
ITEM 7. Financial Statement and Exhibits
Exhibits: (as noted in Item 5 above)
Monthly Remittance Statement to the Certificateholders dated as of April
25, 1997.
Monthly Remittance Statement to the Certificateholders dated as of May 27,
1997.
Monthly Remittance Statement to the Certificateholders dated as of June 25,
1997.
Monthly Remittance Statement to the Certificateholders dated as of July 25,
1997.
Monthly Remittance Statement to the Certificateholders dated as of August
25, 1997.
Monthly Remittance Statement to the Certificateholders dated as of September
25, 1997.
Monthly Remittance Statement to the Certificateholders dated as of October
27, 1997.
Monthly Remittance Statement to the Certificateholders dated as of November
25, 1997.
Monthly Remittance Statement to the Certificateholders dated as of December
26, 1997.
Monthly Remittance Statement to the Certificateholders dated as of January
26, 1998.
Monthly Remittance Statement to the Certificateholders dated as of February
25, 1998.
Monthly Remittance Statement to the Certificateholders dated as of March 25,
1998.
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned, hereunto duly authorized.
Bankers Trust Company, not in its individual
capacity, but solely as a duly authorized
agent of the Registrant pursuant to the
Pooling and Servicing Agreement dated March
1, 1997.
Date: March 31, 1998 By: /s/ Judy L. Gomez
Judy L. Gomez
Assistant Vice President
EXHIBIT INDEX
Document
Monthly Remittance Statement to the Certificateholders dated as of April
25, 1997.
Monthly Remittance Statement to the Certificateholders dated as of May 27,
1997.
Monthly Remittance Statement to the Certificateholders dated as of June 25,
1997.
Monthly Remittance Statement to the Certificateholders dated as of July 25,
1997.
Monthly Remittance Statement to the Certificateholders dated as of August
25, 1997.
Monthly Remittance Statement to the Certificateholders dated as of September
25, 1997.
Monthly Remittance Statement to the Certificateholders dated as of October
27, 1997.
Monthly Remittance Statement to the Certificateholders dated as of November
25, 1997.
Monthly Remittance Statement to the Certificateholders dated as of December
26, 1997.
Monthly Remittance Statement to the Certificateholders dated as of January
26, 1998.
Monthly Remittance Statement to the Certificateholders dated as of February
25, 1998.
Monthly Remittance Statement to the Certificateholders dated as of March 25,
1998.
JANUARY
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
LOWER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
LT-1 478,000.00 264,361.53 2,861.14 27,223.01
LT-2 295,000.00 295,000.00 3,192.73 0.00
LT-3 232,000.00 232,000.00 2,510.89 0.00
LT-4 506,000.00 506,000.00 5,476.35 0.00
LT-5 115,000.00 115,000.00 1,244.62 0.00
LT-6 374,000.00 374,000.00 4,047.73 0.00
LT-A 155,816,106.79 188,309,792.07 2,001,312.04 1,701,075.96
LT-M 1,179,920.55 2,056,695.43 12,394.15 17,357.92
RL 0.00 0.00 0.00 0.00
Totals 158,996,027.34 192,152,849.03 2,033,039.65 1,745,656.89
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
LT-1 30,084.15 0.00 0.00 237,138.52
LT-2 3,192.73 0.00 0.00 295,000.00
LT-3 2,510.89 0.00 0.00 232,000.00
LT-4 5,476.35 0.00 0.00 506,000.00
LT-5 1,244.62 0.00 0.00 115,000.00
LT-6 4,047.73 0.00 0.00 374,000.00
LT-A 3,702,388.00 487,432.78 0.00 186,121,283.33
LT-M 29,752.07 9,947.61 9,865.09 2,039,254.99
RL 0.00 0.00 0.00 0.00
Totals 3,778,696.54 497,380.39 9,865.09 189,919,676.84
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
LT-1 553.057594 5.985649 56.951904 62.937552
LT-2 1,000.000000 10.822814 0.000000 10.822814
LT-3 1,000.000000 10.822802 0.000000 10.822802
LT-4 1,000.000000 10.822826 0.000000 10.822826
LT-5 1,000.000000 10.822783 0.000000 10.822783
LT-6 1,000.000000 10.822807 0.000000 10.822807
LT-A 1,208.538680 12.844064 10.917202 23.761266
LT-M 1,743.079591 10.504224 14.711092 25.215316
RL 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
LT-1 496.105690 12.98738% 12.98432%
LT-2 1,000.000000 12.98738% 12.98432%
LT-3 1,000.000000 12.98738% 12.98432%
LT-4 1,000.000000 12.98738% 12.98432%
LT-5 1,000.000000 12.98738% 12.98432%
LT-6 1,000.000000 12.98738% 12.98432%
LT-A 1,194.493221 12.98738% 12.98432%
LT-M 1,728.298562 12.98738% 12.98432%
RL 0.000000 0.000000% 0.000000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: December 31, 1997 Irvine, CA 92714
Distribution Date: January 26, 1998 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
UPPER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
A-1 47,800,000.00 26,436,154.99 136,586.80 2,722,300.59
A-2 29,500,000.00 29,500,000.00 164,954.17 0.00
A-3 23,200,000.00 23,200,000.00 133,593.33 0.00
A-4 50,600,000.00 50,600,000.00 301,491.67 0.00
A-5 11,500,000.00 11,500,000.00 70,820.83 0.00
A-6 37,400,000.00 37,400,000.00 236,555.00 0.00
B 4,769,880.27 15,405,710.68 0.00 0.00
RU 0.00 0.00 0.00 0.00
Totals 204,769,880.27 194,041,865.67 1,044,001.80 2,722,300.59
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
A-1 2,858,887.39 0.00 0.00 23,713,584.40
A-2 164,954.17 0.00 0.00 29,500,000.00
A-3 133,593.33 0.00 0.00 23,200,000.00
A-4 301,491.67 0.00 0.00 50,600,000.00
A-5 70,820.83 0.00 0.00 11,500,000.00
A-6 236,555.00 0.00 0.00 37,400,000.00
B 0.00 0.00 986,508.79 16,392,219.47
RU 0.00 0.00 0.00 0.00
Totals 3,766,302.39 0.00 986,508.79 192,306,073.87
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
A-1 126342GH1 553.057636 2.857464 56.951895 59.809360
A-2 126342GJ7 1,000.000000 5.591667 0.000000 5.591667
A-3 126342GK4 1,000.000000 5.758333 0.000000 5.758333
A-4 126342GL2 1,000.000000 5.958333 0.000000 5.958333
A-5 126342GM0 1,000.000000 6.158333 0.000000 6.158333
A-6 126342GN8 1,000.000000 6.325000 0.000000 6.325000
B 3,229.789808 0.000000 0.000000 0.000000
RU 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
A-1 496.105741 6.20000% 6.20000%
A-2 1,000.000000 6.71000% 6.71000%
A-3 1,000.000000 6.91000% 6.91000%
A-4 1,000.000000 7.15000% 7.15000%
A-5 1,000.000000 7.39000% 7.39000%
A-6 1,000.000000 7.59000% 7.59000%
B 3,436.610259 0.00000% 0.00000%
RU 0.000000 0.00000% 0.00000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: December 31, 1997 Irvine, CA 92714
Distribution Date: January 26, 1998 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: December 26, 1997
DELINQUENT LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE NA 2,199,237.08 650,093.93 1,592,011.14
PERCENTAGE OF POOL BAL. NA 1.1580% 0.3423% 0.8383%
NUMBER OF LOANS NA 67 20 46
PERCENTAGE OF LOANS NA 1.2474% 0.3724% 0.8565%
DELINQUENT LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 4,441,342.15
PERCENTAGE OF POOL BAL. 2.3385%
NUMBER OF LOANS 133
PERCENTAGE OF LOANS 2.4763%
BANKRUPTCY LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 1,087,894.66 170,931.07 538,689.10 859,151.50
PERCENTAGE OF POOL BAL. 0.5728% 0.0900% 0.2836% 0.4524%
NUMBER OF LOANS 33 4 15 23
PERCENTAGE OF LOANS 0.6144% 0.0745% 0.2793% 0.4282%
BANKRUPTCY LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 2,656,666.33
PERCENTAGE OF POOL BAL. 1.3988%
NUMBER OF LOANS 75
PERCENTAGE OF LOANS 1.3964%
FORECLOSURE LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.00
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
FORECLOSURE LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.00
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.00
REO PROPERTY 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
REO PROPERTY
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.0000%
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.0000%
BOOK VALUE OF LOANS IN REO: 0.00
ADDITIONAL INFORMATION CONCERNING ANY REO PROPERTY: (SEE ATTACHED, IF ANY)
WEIGHTED AVERTAGE MORTGAGE INTEREST RATE: 13.948882%
WEIGHTED AVERAGE NET MORTGAGE INTEREST RATE: 12.987382%
WEIGHTED AVERAGE REMAINING TERM TO MATURITY: 170
PRIOR NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,423
NUMBER OF SUBSEQUENT MORTGAGE LOANS ADDED TO THE POOL: 0
CURRENT NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,371
PRIOR AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 192,152,849.03
SUBSEQUENT MORTGAGE LOANS ADDED TO POOL PRINCIPAL BALANCE: 0.00
CURRENT AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 189,919,676.84
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: January 26, 1998
PRINCIPAL REMITTANCE AMOUNTS:
SCHEDULED PRINCIPAL: 358,073.48
CURTAILMENTS: 103,210.29
PREPAYMENTS IN FULL: 1,274,508.03
NET LIQUIDATION PROCEEDS 0.00
INSURANCE PRINCIPAL PROCEEDS: 0.00
RELEASED MORTGAGED PROPERTY PROCEEDS: 0.00
REPURCHASED PRINCIPAL AMOUNTS: 0.00
OVERCOLLATERALIZATION INCREASE AMOUNT: 986,508.79
SUBSTITUTION ADJUSTMENTS: 0.00
PRE-FUNDED AMOUNTS DISTRIBUTED AS PRINCIPAL: 0.00
TOTAL PRINCIPAL DISTRIBUTED: 2,722,300.59
INSURED PAYMENT INCLUDED IN CURRENT DISTRIBUTION
TO CLASS A CERTIFICATEHOLDERS: 0.00
REIMBURSEMENT AMOUNT PAID TO CERTIFICATE INSURER
FOR CURRENT DISTRIBUTION: 0.00
REQUIRED OVERCOLLATERALIZATION LEVEL AS OF THE
CURRENT REMITTANCE DATE: 19,200,000.00
OVERCOLLATERALIZATION AMOUNT AS OF THE CURRENT
DISTRIBUTION DATE: 14,005,822.44
TOTAL REPURCHASE PRICE OF ANY REPURCHASED LOANS
AS OF THE CURRENT DISTRIBUTION DATE: 0.00
CURRENT REALIZED LOSSES FOR THE RELATED COLLECTION PERIOD: 497,380.39
CURRENT CUMULATIVE REALIZED LOSSES TO DATE: 2,386,397.03
REMAINING PRE-FUNDED AMOUNT: 0.00
CS CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
LOWER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
LT-1 47,800,000.00 47,800,000.00 246,966.67 1,465,269.42
LT-2 29,500,000.00 29,500,000.00 164,954.17 0.00
LT-3 23,200,000.00 23,200,000.00 133,593.33 0.00
LT-4 50,600,000.00 50,600,000.00 301,491.67 0.00
LT-5 11,500,000.00 11,500,000.00 70,820.83 0.00
LT-6 37,400,000.00 37,400,000.00 236,555.00 0.00
LT-A 155,816,107.35 155,816,107.35 1,721,282.49 0.00
LT-M 3,179,920.56 3,179,920.56 35,128.21 0.00
RL 0.00 0.00 0.00 0.00
Totals 311,196,027.91 311,196,027.91 2,663,825.70 0.00
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
LT-1 1,712,236.09 0.00 0.00 46,334,730.58
LT-2 164,954.17 0.00 0.00 29,500,000.00
LT-3 133,593.33 0.00 0.00 23,200,000.00
LT-4 301,491.67 0.00 0.00 50,600,000.00
LT-5 70,820.83 0.00 0.00 11,500,000.00
LT-6 236,555.00 0.00 0.00 37,400,000.00
LT-A 1,725,640.41 0.00 0.00 155,816,107.35
LT-M 35,217.15 0.00 0.00 3,179,920.56
RL 0.00 0.00 0.00 0.00
Totals 2,663,825.70 0.00 0.00 311,196,027.91
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
LT-1 1,000.000000 5.166667 30.654172 35.820839
LT-2 1,000.000000 5.591667 0.000000 5.591667
LT-3 1,000.000000 5.758333 0.000000 5.758333
LT-4 1,000.000000 5.958333 0.000000 5.958333
LT-5 1,000.000000 6.158333 0.000000 6.158333
LT-6 1,000.000000 6.325000 0.000000 6.325000
LT-A 1,000.000000 11.074853 0.000000 11.046884
LT-M 1,000.000000 11.074852 0.000000 11.046883
RL 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
LT-1 969.345828 13.25626% 13.25707%
LT-2 1,000.000000 13.25626% 13.25707%
LT-3 1,000.000000 13.25626% 13.25707%
LT-4 1,000.000000 13.25626% 13.25707%
LT-5 1,000.000000 13.25626% 13.25707%
LT-6 1,000.000000 13.25626% 13.25707%
LT-A 1,000.000000 13.25626% 13.25707%
LT-M 1,000.000000 13.25626% 13.25707%
RL 0.000000 0.000000% 0.000000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: March 31, 1997 Irvine, CA 92714
Distribution Date: April 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
UPPER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
A-1 47,800,000.00 47,800,000.00 246,966.67 1,465,269.42
A-2 29,500,000.00 29,500,000.00 164,954.17 0.00
A-3 23,200,000.00 23,200,000.00 133,593.33 0.00
A-4 50,600,000.00 50,600,000.00 301,491.67 0.00
A-5 11,500,000.00 11,500,000.00 70,820.83 0.00
A-6 37,400,000.00 37,400,000.00 236,555.00 0.00
B 4,769,880.37 4,769,880.37 0.00 0.00
RU 0.00 0.00 0.00 0.00
Totals 204,769,880.37 204,769,880.37 1,154,381.67 1,465,269.42
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
A-1 1,712,236.09 0.00 0.00 46,334,730.58
A-2 164,954.17 0.00 0.00 29,500,000.00
A-3 133,593.33 0.00 0.00 23,200,000.00
A-4 301,491.67 0.00 0.00 50,600,000.00
A-5 70,820.83 0.00 0.00 11,500,000.00
A-6 236,555.00 0.00 0.00 37,400,000.00
B 0.00 0.00 0.00 4,769,880.37
RU 0.00 0.00 0.00 0.00
Totals 2,619,651.09 0.00 0.00 203,304,61.95
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
A-1 126342GH1 1,000.000000 5.166667 30.654172 35.820839
A-2 126342GJ7 1,000.000000 5.591667 0.000000 5.591667
A-3 126342GK4 1,000.000000 5.758333 0.000000 5.758333
A-4 126342GL2 1,000.000000 5.958333 0.000000 5.958333
A-5 126342GM0 1,000.000000 6.158333 0.000000 6.158333
A-6 126342GN8 1,000.000000 6.325000 0.000000 6.325000
B 1,000.000000 0.000000 0.000001 0.000000
RU 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
A-1 969.345828 6.20000% 6.20000%
A-2 1,000.000000 6.71000% 6.71000%
A-3 1,000.000000 6.91000% 6.91000%
A-4 1,000.000000 7.15000% 7.15000%
A-5 1,000.000000 7.39000% 7.39000%
A-6 1,000.000000 7.59000% 7.59000%
B 1,000.000000 0.00000% 0.00000%
RU 0.000000 0.00000% 13.25707%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: March 31, 1997 Irvine, CA 92714
Distribution Date: April 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: April 25, 1997
DELINQUENT AND LOANS
FORECLOSURE LOAN 30 TO 59 60 TO 89 90 PLUS IN
INFORMATION DAYS DAYS DAYS FORECLOSURES
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
DELINQUENT AND LOANS LOANS
FORECLOSURE LOAN IN IN
INFORMATION REO BANKRUPTCY
PRINCIPAL BALANCE 0.00 138,426.55
PERCENTAGE OF POOL BAL. 0.0000% 0.0874%
NUMBER OF LOANS 0 4
PERCENTAGE OF LOANS 0.0000% 0.0912%
Note: Quantity and Principal Balance of Foreclosures, Bankruptcies, & REOs are
Not Included in the Delinquency Figures.
BOOK VALUE OF LOANS IN REO: 0.00
ADDITIONAL INFORMATION CONCERNING ANY REO PROPERTY: (SEE ATTACHED, IF ANY)
WEIGHTED AVERTAGE MORTGAGE INTEREST RATE: 13.906261%
WEIGHTED AVERAGE NET MORTGAGE INTEREST RATE: 12.944761%
WEIGHTED AVERAGE REMAINING TERM TO MATURITY: 180
PRIOR NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 4,394
NUMBER OF SUBSEQUENT MORTGAGE LOANS ADDED TO THE POOL: 0
CURRENT NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 4,387
PRIOR AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 158,996,027.34
SUBSEQUENT MORTGAGE LOANS ADDED TO POOL PRINCIPAL BALANCE: 0.00
CURRENT AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 158,345,465.77
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: April 25, 1997
PRINCIPAL REMITTANCE AMOUNTS:
SCHEDULED PRINCIPAL: 329,773.46
CURTAILMENTS: 119,263.57
PREPAYMENTS IN FULL: 201,524.54
NET LIQUIDATION PROCEEDS 0.00
INSURANCE PRINCIPAL PROCEEDS: 0.00
RELEASED MORTGAGED PROPERTY PROCEEDS: 0.00
REPURCHASED PRINCIPAL AMOUNTS: 0.00
OVERCOLLATERALIZATION INCREASE AMOUNT: 814,707.85
SUBSTITUTION ADJUSTMENTS: 0.00
PRE-FUNDED AMOUNTS DISTRIBUTED AS PRINCIPAL: 0.00
TOTAL PRINCIPAL DISTRIBUTED: 1,465,269.42
INSURED PAYMENT INCLUDED IN CURRENT DISTRIBUTION
TO CLASS A CERTIFICATEHOLDERS: 0.00
REIMBURSEMENT AMOUNT PAID TO CERTIFICATE INSURER
FOR CURRENT DISTRIBUTION: 0.00
REQUIRED OVERCOLLATERALIZATION LEVEL AS OF THE
CURRENT REMITTANCE DATE: 19,200,000.00
OVERCOLLATERALIZATION AMOUNT AS OF THE CURRENT
DISTRIBUTION DATE: 5,584,588.12
TOTAL REPURCHASE PRICE OF ANY REPURCHASED LOANS
AS OF THE CURRENT DISTRIBUTION DATE: 0.00
CURRENT REALIZED LOSSES FOR THE RELATED COLLECTION PERIOD: 0.00
CURRENT CUMULATIVE REALIZED LOSSES TO DATE: 0.00
REMAINING PRE-FUNDED AMOUNT: 45,773,852.93
CS CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
LOWER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
LT-1 47,800,000.00 46,334,730.58 239,396.11 2,098,428.23
LT-2 29,500,000.00 29,500,000.00 164,954.17 0.00
LT-3 23,200,000.00 23,200,000.00 133,593.33 0.00
LT-4 50,600,000.00 50,600,000.00 301,491.67 0.00
LT-5 11,500,000.00 11,500,000.00 70,820.83 0.00
LT-6 37,400,000.00 37,400,000.00 236,555.00 0.00
LT-A 155,816,107.35 155,816,107.35 1,725,640.41 0.00
LT-M 3,179,920.56 3,179,920.56 35,217.15 0.00
RL 0.00 0.00 0.00 0.00
Totals 311,196,027.91 311,196,027.91 2,668,272.56 0.00
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
LT-1 2,337,824.34 0.00 0.00 44,236,302.35
LT-2 164,954.17 0.00 0.00 29,500,000.00
LT-3 133,593.33 0.00 0.00 23,200,000.00
LT-4 301,491.67 0.00 0.00 50,600,000.00
LT-5 70,820.83 0.00 0.00 11,500,000.00
LT-6 236,555.00 0.00 0.00 37,400,000.00
LT-A 1,725,640.41 0.00 0.00 155,816,107.35
LT-M 35,217.15 0.00 0.00 3,179,920.56
RL 0.00 0.00 0.00 0.00
Totals 2,668,272.56 0.00 0.00 311,196,027.91
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
LT-1 969.345828 5.008287 43.900172 48.908459
LT-2 1,000.000000 5.591667 0.000000 5.591667
LT-3 1,000.000000 5.758333 0.000000 5.758333
LT-4 1,000.000000 5.958333 0.000000 5.958333
LT-5 1,000.000000 6.158333 0.000000 6.158333
LT-6 1,000.000000 6.325000 0.000000 6.325000
LT-A 1,000.000000 11.074853 0.000000 11.074853
LT-M 1,000.000000 11.074852 0.000000 11.074852
RL 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
LT-1 925.445656 13.28982% 13.29121%
LT-2 1,000.000000 13.28982% 13.29121%
LT-3 1,000.000000 13.28982% 13.29121%
LT-4 1,000.000000 13.28982% 13.29121%
LT-5 1,000.000000 13.28982% 13.29121%
LT-6 1,000.000000 13.28982% 13.29121%
LT-A 1,000.000000 13.28982% 13.29121%
LT-M 1,000.000000 13.28982% 13.29121%
RL 0.000000 0.000000% 0.000000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: April 30, 1997 Irvine, CA 92714
Distribution Date: May 27, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
UPPER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
A-1 47,800,000.00 46,334,730.58 239,396.11 2,098,428.23
A-2 29,500,000.00 29,500,000.00 164,954.17 0.00
A-3 23,200,000.00 23,200,000.00 133,593.33 0.00
A-4 50,600,000.00 50,600,000.00 301,491.67 0.00
A-5 11,500,000.00 11,500,000.00 70,820.83 0.00
A-6 37,400,000.00 37,400,000.00 236,555.00 0.00
B 4,769,880.37 6,184,253.68 0.00 0.00
RU 0.00 0.00 0.00 0.00
Totals 204,769,880.37 204,718,984.26 1,146,811.11 2,0098,428.23
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
A-1 2,337,824.34 0.00 0.00 44,236,302.35
A-2 164,954.17 0.00 0.00 29,500,000.00
A-3 133,593.33 0.00 0.00 23,200,000.00
A-4 301,491.67 0.00 0.00 50,600,000.00
A-5 70,820.83 0.00 0.00 11,500,000.00
A-6 236,555.00 0.00 0.00 37,400,000.00
B 0.00 0.00 0.00 6,184,253.68
RU 0.00 0.00 0.00 0.00
Totals 3,245,239.34 0.00 0.00 202,620,556.03
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
A-1 126342GH1 969.345828 5.008287 43.900172 48.908459
A-2 126342GJ7 1,000.000000 5.591667 0.000000 5.591667
A-3 126342GK4 1,000.000000 5.758333 0.000000 5.758333
A-4 126342GL2 1,000.000000 5.958333 0.000000 5.958333
A-5 126342GM0 1,000.000000 6.158333 0.000000 6.158333
A-6 126342GN8 1,000.000000 6.325000 0.000000 6.325000
B 1,296.521757 0.000000 0.000001 0.000001
RU 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
A-1 925.445656 6.20000% 6.20000%
A-2 1,000.000000 6.71000% 6.71000%
A-3 1,000.000000 6.91000% 6.91000%
A-4 1,000.000000 7.15000% 7.15000%
A-5 1,000.000000 7.39000% 7.39000%
A-6 1,000.000000 7.59000% 7.59000%
B 1,296.521757 0.00000% 0.00000%
RU 0.000000 0.00000% 13.29241%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: April 30, 1997 Irvine, CA 92714
Distribution Date: May 27, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: May 27, 1997
DELINQUENT AND LOANS
FORECLOSURE LOAN 30 TO 59 60 TO 89 90 PLUS IN
INFORMATION DAYS DAYS DAYS FORECLOSURES
PRINCIPAL BALANCE 1,630,867.40 718,891.07 55,000.00 0.00
PERCENTAGE OF POOL BAL. 0.7974% 0.3515% 0.0269% 0.0000%
NUMBER OF LOANS 49 19 1 0
PERCENTAGE OF LOANS 0.8584% 0.3329% 0.0175% 0.0000%
DELINQUENT AND LOANS LOANS
FORECLOSURE LOAN IN IN
INFORMATION REO BANKRUPTCY
PRINCIPAL BALANCE 0.00 265,263.08
PERCENTAGE OF POOL BAL. 0.0000% 0.1297%
NUMBER OF LOANS 0 7
PERCENTAGE OF LOANS 0.0000% 0.1226%
Note: Quantity and Principal Balance of Foreclosures, Bankruptcies, & REOs are
Not Included in the Delinquency Figures.
BOOK VALUE OF LOANS IN REO: 0.00
ADDITIONAL INFORMATION CONCERNING ANY REO PROPERTY: (SEE ATTACHED, IF ANY)
WEIGHTED AVERTAGE MORTGAGE INTEREST RATE: 13.939823%
WEIGHTED AVERAGE NET MORTGAGE INTEREST RATE: 12.978323%
WEIGHTED AVERAGE REMAINING TERM TO MATURITY: 179
PRIOR NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 4,387
NUMBER OF SUBSEQUENT MORTGAGE LOANS ADDED TO THE POOL: 1,339
CURRENT NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,708
PRIOR AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 158,345,465.77
SUBSEQUENT MORTGAGE LOANS ADDED TO POOL PRINCIPAL BALANCE: 47,145,777.14
CURRENT AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 204,512,196.27
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: May 27, 1997
PRINCIPAL REMITTANCE AMOUNTS:
SCHEDULED PRINCIPAL: 384,718.08
CURTAILMENTS: 99,254.96
PREPAYMENTS IN FULL: 531,073.60
NET LIQUIDATION PROCEEDS 0.00
INSURANCE PRINCIPAL PROCEEDS: 0.00
RELEASED MORTGAGED PROPERTY PROCEEDS: 0.00
REPURCHASED PRINCIPAL AMOUNTS: 0.00
OVERCOLLATERALIZATION INCREASE AMOUNT: 1,076,932.49
SUBSTITUTION ADJUSTMENTS: 0.00
PRE-FUNDED AMOUNTS DISTRIBUTED AS PRINCIPAL: 42,449.10
TOTAL PRINCIPAL DISTRIBUTED: 2,098,428.23
INSURED PAYMENT INCLUDED IN CURRENT DISTRIBUTION
TO CLASS A CERTIFICATEHOLDERS: 0.00
REIMBURSEMENT AMOUNT PAID TO CERTIFICATE INSURER
FOR CURRENT DISTRIBUTION: 0.00
REQUIRED OVERCOLLATERALIZATION LEVEL AS OF THE
CURRENT REMITTANCE DATE: 19,200,000.00
OVERCOLLATERALIZATION AMOUNT AS OF THE CURRENT
DISTRIBUTION DATE: 8,075,893.92
TOTAL REPURCHASE PRICE OF ANY REPURCHASED LOANS
AS OF THE CURRENT DISTRIBUTION DATE: 0.00
CURRENT REALIZED LOSSES FOR THE RELATED COLLECTION PERIOD: 0.00
CURRENT CUMULATIVE REALIZED LOSSES TO DATE: 0.00
REMAINING PRE-FUNDED AMOUNT: 0.00
CS CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
LOWER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
LT-1 47,800,000.00 46,334,730.58 239,396.11 2,098,428.23
LT-2 29,500,000.00 29,500,000.00 164,954.17 0.00
LT-3 23,200,000.00 23,200,000.00 133,593.33 0.00
LT-4 50,600,000.00 50,600,000.00 301,491.67 0.00
LT-5 11,500,000.00 11,500,000.00 70,820.83 0.00
LT-6 37,400,000.00 37,400,000.00 236,555.00 0.00
LT-A 155,816,107.35 155,816,107.35 1,725,640.41 0.00
LT-M 3,179,920.56 3,179,920.56 35,217.15 0.00
RL 0.00 0.00 0.00 0.00
Totals 311,196,027.91 311,196,027.91 2,668,272.56 0.00
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
LT-1 2,337,824.34 0.00 0.00 44,236,302.35
LT-2 164,954.17 0.00 0.00 29,500,000.00
LT-3 133,593.33 0.00 0.00 23,200,000.00
LT-4 301,491.67 0.00 0.00 50,600,000.00
LT-5 70,820.83 0.00 0.00 11,500,000.00
LT-6 236,555.00 0.00 0.00 37,400,000.00
LT-A 1,725,640.41 0.00 0.00 155,816,107.35
LT-M 35,217.15 0.00 0.00 3,179,920.56
RL 0.00 0.00 0.00 0.00
Totals 2,668,272.56 0.00 0.00 311,196,027.91
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
LT-1 969.345828 5.008287 43.900172 48.908459
LT-2 1,000.000000 5.591667 0.000000 5.591667
LT-3 1,000.000000 5.758333 0.000000 5.758333
LT-4 1,000.000000 5.958333 0.000000 5.958333
LT-5 1,000.000000 6.158333 0.000000 6.158333
LT-6 1,000.000000 6.325000 0.000000 6.325000
LT-A 1,000.000000 11.074853 0.000000 11.074853
LT-M 1,000.000000 11.074852 0.000000 11.074852
RL 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
LT-1 925.445656 13.28982% 13.29121%
LT-2 1,000.000000 13.28982% 13.29121%
LT-3 1,000.000000 13.28982% 13.29121%
LT-4 1,000.000000 13.28982% 13.29121%
LT-5 1,000.000000 13.28982% 13.29121%
LT-6 1,000.000000 13.28982% 13.29121%
LT-A 1,000.000000 13.28982% 13.29121%
LT-M 1,000.000000 13.28982% 13.29121%
RL 0.000000 0.000000% 0.000000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: April 30, 1997 Irvine, CA 92714
Distribution Date: May 27, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
UPPER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
A-1 47,800,000.00 46,334,730.58 239,396.11 2,098,428.23
A-2 29,500,000.00 29,500,000.00 164,954.17 0.00
A-3 23,200,000.00 23,200,000.00 133,593.33 0.00
A-4 50,600,000.00 50,600,000.00 301,491.67 0.00
A-5 11,500,000.00 11,500,000.00 70,820.83 0.00
A-6 37,400,000.00 37,400,000.00 236,555.00 0.00
B 4,769,880.37 6,184,253.68 0.00 0.00
RU 0.00 0.00 0.00 0.00
Totals 204,769,880.37 204,718,984.26 1,146,811.11 2,0098,428.23
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
A-1 2,337,824.34 0.00 0.00 44,236,302.35
A-2 164,954.17 0.00 0.00 29,500,000.00
A-3 133,593.33 0.00 0.00 23,200,000.00
A-4 301,491.67 0.00 0.00 50,600,000.00
A-5 70,820.83 0.00 0.00 11,500,000.00
A-6 236,555.00 0.00 0.00 37,400,000.00
B 0.00 0.00 0.00 6,184,253.68
RU 0.00 0.00 0.00 0.00
Totals 3,245,239.34 0.00 0.00 202,620,556.03
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
A-1 126342GH1 969.345828 5.008287 43.900172 48.908459
A-2 126342GJ7 1,000.000000 5.591667 0.000000 5.591667
A-3 126342GK4 1,000.000000 5.758333 0.000000 5.758333
A-4 126342GL2 1,000.000000 5.958333 0.000000 5.958333
A-5 126342GM0 1,000.000000 6.158333 0.000000 6.158333
A-6 126342GN8 1,000.000000 6.325000 0.000000 6.325000
B 1,296.521757 0.000000 0.000001 0.000001
RU 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
A-1 925.445656 6.20000% 6.20000%
A-2 1,000.000000 6.71000% 6.71000%
A-3 1,000.000000 6.91000% 6.91000%
A-4 1,000.000000 7.15000% 7.15000%
A-5 1,000.000000 7.39000% 7.39000%
A-6 1,000.000000 7.59000% 7.59000%
B 1,296.521757 0.00000% 0.00000%
RU 0.000000 0.00000% 13.29241%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: April 30, 1997 Irvine, CA 92714
Distribution Date: May 27, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: May 27, 1997
DELINQUENT AND LOANS
FORECLOSURE LOAN 30 TO 59 60 TO 89 90 PLUS IN
INFORMATION DAYS DAYS DAYS FORECLOSURES
PRINCIPAL BALANCE 1,630,867.40 718,891.07 55,000.00 0.00
PERCENTAGE OF POOL BAL. 0.7974% 0.3515% 0.0269% 0.0000%
NUMBER OF LOANS 49 19 1 0
PERCENTAGE OF LOANS 0.8584% 0.3329% 0.0175% 0.0000%
DELINQUENT AND LOANS LOANS
FORECLOSURE LOAN IN IN
INFORMATION REO BANKRUPTCY
PRINCIPAL BALANCE 0.00 265,263.08
PERCENTAGE OF POOL BAL. 0.0000% 0.1297%
NUMBER OF LOANS 0 7
PERCENTAGE OF LOANS 0.0000% 0.1226%
Note: Quantity and Principal Balance of Foreclosures, Bankruptcies, & REOs are
Not Included in the Delinquency Figures.
BOOK VALUE OF LOANS IN REO: 0.00
ADDITIONAL INFORMATION CONCERNING ANY REO PROPERTY: (SEE ATTACHED, IF ANY)
WEIGHTED AVERTAGE MORTGAGE INTEREST RATE: 13.939823%
WEIGHTED AVERAGE NET MORTGAGE INTEREST RATE: 12.978323%
WEIGHTED AVERAGE REMAINING TERM TO MATURITY: 179
PRIOR NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 4,387
NUMBER OF SUBSEQUENT MORTGAGE LOANS ADDED TO THE POOL: 1,339
CURRENT NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,708
PRIOR AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 158,345,465.77
SUBSEQUENT MORTGAGE LOANS ADDED TO POOL PRINCIPAL BALANCE: 47,145,777.14
CURRENT AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 204,512,196.27
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: May 27, 1997
PRINCIPAL REMITTANCE AMOUNTS:
SCHEDULED PRINCIPAL: 384,718.08
CURTAILMENTS: 99,254.96
PREPAYMENTS IN FULL: 531,073.60
NET LIQUIDATION PROCEEDS 0.00
INSURANCE PRINCIPAL PROCEEDS: 0.00
RELEASED MORTGAGED PROPERTY PROCEEDS: 0.00
REPURCHASED PRINCIPAL AMOUNTS: 0.00
OVERCOLLATERALIZATION INCREASE AMOUNT: 1,076,932.49
SUBSTITUTION ADJUSTMENTS: 0.00
PRE-FUNDED AMOUNTS DISTRIBUTED AS PRINCIPAL: 42,449.10
TOTAL PRINCIPAL DISTRIBUTED: 2,098,428.23
INSURED PAYMENT INCLUDED IN CURRENT DISTRIBUTION
TO CLASS A CERTIFICATEHOLDERS: 0.00
REIMBURSEMENT AMOUNT PAID TO CERTIFICATE INSURER
FOR CURRENT DISTRIBUTION: 0.00
REQUIRED OVERCOLLATERALIZATION LEVEL AS OF THE
CURRENT REMITTANCE DATE: 19,200,000.00
OVERCOLLATERALIZATION AMOUNT AS OF THE CURRENT
DISTRIBUTION DATE: 8,075,893.92
TOTAL REPURCHASE PRICE OF ANY REPURCHASED LOANS
AS OF THE CURRENT DISTRIBUTION DATE: 0.00
CURRENT REALIZED LOSSES FOR THE RELATED COLLECTION PERIOD: 0.00
CURRENT CUMULATIVE REALIZED LOSSES TO DATE: 0.00
REMAINING PRE-FUNDED AMOUNT: 0.00
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
LOWER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
LT-1 47,800,000.00 42,214,329.80 218,107.37 2,778,475.99
LT-2 29,500,000.00 29,500,000.00 164,954.17 0.00
LT-3 23,200,000.00 23,200,000.00 133,593.33 0.00
LT-4 50,600,000.00 50,600,000.00 301,491.67 0.00
LT-5 11,500,000.00 11,500,000.00 70,820.83 0.00
LT-6 37,400,000.00 37,400,000.00 236,555.00 0.00
LT-A 155,816,107.35 155,816,107.35 1,725,975.93 0.00
LT-M 3,179,920.56 3,179,920.56 35,224.00 0.00
RL 0.00 0.00 0.00 0.00
Totals 311,196,027.91 311,196,027.91 2,668,614.93 0.00
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
LT-1 2,996,583.36 0.00 0.00 39,435,853.81
LT-2 164,954.17 0.00 0.00 29,500,000.00
LT-3 133,593.33 0.00 0.00 23,200,000.00
LT-4 301,491.67 0.00 0.00 50,600,000.00
LT-5 70,820.83 0.00 0.00 11,500,000.00
LT-6 236,555.00 0.00 0.00 37,400,000.00
LT-A 1,725,975.93 0.00 0.00 155,816,107.35
LT-M 35,224.00 0.00 0.00 3,179,920.56
RL 0.00 0.00 0.00 0.00
Totals 2,668,614.06 0.00 0.00 311,196,027.91
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
LT-1 883.144975 4.562916 58.127113 62.690028
LT-2 1,000.000000 5.591667 0.000000 5.591667
LT-3 1,000.000000 5.758333 0.000000 5.758333
LT-4 1,000.000000 5.958333 0.000000 5.958333
LT-5 1,000.000000 6.158333 0.000000 6.158333
LT-6 1,000.000000 6.325000 0.000000 6.325000
LT-A 1,000.000000 11.076006 0.000000 11.076006
LT-M 1,000.000000 11.076006 0.000000 11.076006
RL 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
LT-1 825.017862 13.29241% 13.29152%
LT-2 1,000.000000 13.29241% 13.29152%
LT-3 1,000.000000 13.29241% 13.29152%
LT-4 1,000.000000 13.29241% 13.29152%
LT-5 1,000.000000 13.29241% 13.29152%
LT-6 1,000.000000 13.29241% 13.29152%
LT-A 1,000.000000 13.29241% 13.29152%
LT-M 1,000.000000 13.29241% 13.29152%
RL 0.000000 0.000000% 0.000000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: June 30, 1997 Irvine, CA 92714
Distribution Date: July 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
UPPER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
A-1 47,800,000.00 42,214,329.80 218,107.37 2,778,475.99
A-2 29,500,000.00 29,500,000.00 164,954.17 0.00
A-3 23,200,000.00 23,200,000.00 133,593.33 0.00
A-4 50,600,000.00 50,600,000.00 301,491.67 0.00
A-5 11,500,000.00 11,500,000.00 70,820.83 0.00
A-6 37,400,000.00 37,400,000.00 236,555.00 0.00
B 4,769,880.37 6,184,253.68 0.00 0.00
RU 0.00 0.00 0.00 0.00
Totals 204,769,880.37 200,598,583.48 1,125,522.37 2,778,475.99
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
A-1 2,996,583.36 0.00 0.00 39,435,853.81
A-2 164,954.17 0.00 0.00 29,500,000.00
A-3 133,593.33 0.00 0.00 23,200,000.00
A-4 301,491.67 0.00 0.00 50,600,000.00
A-5 70,820.83 0.00 0.00 11,500,000.00
A-6 236,555.00 0.00 0.00 37,400,000.00
B 0.00 0.00 0.00 6,184,253.68
RU 0.00 0.00 0.00 0.00
Totals 3,903,998.36 0.00 0.00 197,820,107.49
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
A-1 126342GH1 883.144975 4.562916 58.127113 62.690028
A-2 126342GJ7 1,000.000000 5.591667 0.000000 5.591667
A-3 126342GK4 1,000.000000 5.758333 0.000000 5.758333
A-4 126342GL2 1,000.000000 5.958333 0.000000 5.958333
A-5 126342GM0 1,000.000000 6.158333 0.000000 6.158333
A-6 126342GN8 1,000.000000 6.325000 0.000000 6.325000
B 1,296.521757 0.000000 0.000000 0.000000
RU 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
A-1 825.017862 6.20000% 6.20000%
A-2 1,000.000000 6.71000% 6.71000%
A-3 1,000.000000 6.91000% 6.91000%
A-4 1,000.000000 7.15000% 7.15000%
A-5 1,000.000000 7.39000% 7.39000%
A-6 1,000.000000 7.59000% 7.59000%
B 1,296.521757 0.00000% 0.00000%
RU 0.000000 0.00000% 13.29241%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: June 30, 1997 Irvine, CA 92714
Distribution Date: July 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: July 25, 1997
DELINQUENT LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE NA 1,300,201.00 506,871.00 1,003,036.12
PERCENTAGE OF POOL BAL. NA 0.6441% 0.2511% 0.4969%
NUMBER OF LOANS NA 38 17 25
PERCENTAGE OF LOANS NA 0.6727% 0.3009% 0.4426%
DELINQUENT LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 2,810,108.12
PERCENTAGE OF POOL BAL. 1.3921%
NUMBER OF LOANS 80
PERCENTAGE OF LOANS 1.4162%
BANKRUPTCY LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 259,176.34 131,253.50 54,639.26 161,360.14
PERCENTAGE OF POOL BAL. 0.1284% 0.0650% 0.0271% 0.0799%
NUMBER OF LOANS 9 3 1 4
PERCENTAGE OF LOANS 0.1593% 0.0531% 0.0177% 0.0708%
BANKRUPTCY LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 606,429.24
PERCENTAGE OF POOL BAL. 0.3004%
NUMBER OF LOANS 17
PERCENTAGE OF LOANS 0.3009%
FORECLOSURE LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
FORECLOSURE LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.0000%
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.0000%
REO PROPERTY 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
REO PROPERTY
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.0000%
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.0000%
BOOK VALUE OF LOANS IN REO: 0.00
ADDITIONAL INFORMATION CONCERNING ANY REO PROPERTY: (SEE ATTACHED, IF ANY)
WEIGHTED AVERTAGE MORTGAGE INTEREST RATE: 13.942407%
WEIGHTED AVERAGE NET MORTGAGE INTEREST RATE: 12.980907%
WEIGHTED AVERAGE REMAINING TERM TO MATURITY: 177
PRIOR NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,689
NUMBER OF SUBSEQUENT MORTGAGE LOANS ADDED TO THE POOL: 0
CURRENT NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,649
PRIOR AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 203,567,861.69
SUBSEQUENT MORTGAGE LOANS ADDED TO POOL PRINCIPAL BALANCE: 0.00
CURRENT AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 201,863,507.56
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: July 25, 1997
PRINCIPAL REMITTANCE AMOUNTS:
SCHEDULED PRINCIPAL: 336,118.85
CURTAILMENTS: 68,149.73
PREPAYMENTS IN FULL: 721,991.96
NET LIQUIDATION PROCEEDS 0.00
INSURANCE PRINCIPAL PROCEEDS: 0.00
RELEASED MORTGAGED PROPERTY PROCEEDS: 0.00
REPURCHASED PRINCIPAL AMOUNTS: 578,093.59
OVERCOLLATERALIZATION INCREASE AMOUNT: 1,074,121.86
SUBSTITUTION ADJUSTMENTS: 0.00
PRE-FUNDED AMOUNTS DISTRIBUTED AS PRINCIPAL: 0.00
TOTAL PRINCIPAL DISTRIBUTED: 2,778,475.99
INSURED PAYMENT INCLUDED IN CURRENT DISTRIBUTION
TO CLASS A CERTIFICATEHOLDERS: 0.00
REIMBURSEMENT AMOUNT PAID TO CERTIFICATE INSURER
FOR CURRENT DISTRIBUTION: 0.00
REQUIRED OVERCOLLATERALIZATION LEVEL AS OF THE
CURRENT REMITTANCE DATE: 19,200,000.00
OVERCOLLATERALIZATION AMOUNT AS OF THE CURRENT
DISTRIBUTION DATE: 10,227,653.75
TOTAL REPURCHASE PRICE OF ANY REPURCHASED LOANS
AS OF THE CURRENT DISTRIBUTION DATE: 584,981.47
CURRENT REALIZED LOSSES FOR THE RELATED COLLECTION PERIOD: 0.00
CURRENT CUMULATIVE REALIZED LOSSES TO DATE: 0.00
REMAINING PRE-FUNDED AMOUNT: 0.00
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
LOWER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
LT-1 478,000.00 394,358.52 4,265.65 24,686.01
LT-2 295,000.00 295,000.00 3,190.92 0.00
LT-3 232,000.00 232,000.00 2,509.47 0.00
LT-4 506,000.00 506,000.00 5,473.24 0.00
LT-5 115,000.00 115,000.00 1,243.92 0.00
LT-6 374,000.00 374,000.00 4,045.44 0.00
LT-A 155,816,106.79 197,826,237.43 2,139,823.77 1,374,517.95
LT-M 1,179,920.55 2,120,911.61 12,280.91 14,025.69
RL 0.00 0.00 0.00 0.00
Totals 158,996,027.34 201,863,507.56 2,172,833.32 1,413,229.65
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
LT-1 28,951.66 0.00 0.00 369,672.51
LT-2 3,190.92 0.00 0.00 295,000.00
LT-3 2,509.47 0.00 0.00 232,000.00
LT-4 5,473.24 0.00 0.00 506,000.00
LT-5 1,243.92 0.00 0.00 115,000.00
LT-6 4,045.44 0.00 0.00 374,000.00
LT-A 3,514,341.72 55,492.38 0.00 196,396,227.10
LT-M 26,306.60 1,132.50 10,660.32 2,116,413.74
RL 0.00 0.00 0.00 0.00
Totals 3,586,062.97 56,624.88 10,660.32 200,404,313.35
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
LT-1 825.017824 8.923954 51.644372 60.568326
LT-2 1,000.000000 10.816678 0.000000 10.816678
LT-3 1,000.000000 10.816681 0.000000 10.816681
LT-4 1,000.000000 10.816680 0.000000 10.816680
LT-5 1,000.000000 10.816696 0.000000 10.816696
LT-6 1,000.000000 10.816684 0.000000 10.816684
LT-A 1,269.613530 13.733008 8.821411 22.554419
LT-M 1,797.503747 10.408252 11.886978 22.295230
RL 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
LT-1 773.373452 12.98002% 12.98002%
LT-2 1,000.000000 12.98002% 12.98002%
LT-3 1,000.000000 12.98002% 12.98002%
LT-4 1,000.000000 12.98002% 12.98002%
LT-5 1,000.000000 12.98002% 12.98002%
LT-6 1,000.000000 12.98002% 12.98002%
LT-A 1,260.435979 12.98002% 12.98002%
LT-M 1,793.691736 12.98002% 12.98002%
RL 0.000000 0.000000% 0.000000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: July 30, 1997 Irvine, CA 92714
Distribution Date: August 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
UPPER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
A-1 47,800,000.00 39,435,835.81 203,751.91 2,468,601.64
A-2 29,500,000.00 29,500,000.00 164,954.17 0.00
A-3 23,200,000.00 23,200,000.00 133,593.33 0.00
A-4 50,600,000.00 50,600,000.00 301,491.67 0.00
A-5 11,500,000.00 11,500,000.00 70,820.83 0.00
A-6 37,400,000.00 37,400,000.00 236,555.00 0.00
B 4,769,880.27 10,227,653.75 0.00 0.00
RU 0.00 0.00 0.00 0.00
Totals 204,769,880.27 201,863,507.56 1,111,166.91 2,468,601.64
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
A-1 2,672,353.55 0.00 0.00 36,967,252.17
A-2 164,954.17 0.00 0.00 29,500,000.00
A-3 133,593.33 0.00 0.00 23,200,000.00
A-4 301,491.67 0.00 0.00 50,600,000.00
A-5 70,820.83 0.00 0.00 11,500,000.00
A-6 236,555.00 0.00 0.00 37,400,000.00
B 0.00 0.00 1,066,032.31 6,184,253.68
RU 0.00 0.00 0.00 0.00
Totals 3,579,768.55 0.00 1,066,032.31 200,460,938.23
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
A-1 126342GH1 825.017962 4.262592 51.644386 55.906978
A-2 126342GJ7 1,000.000000 5.591667 0.000000 5.591667
A-3 126342GK4 1,000.000000 5.758333 0.000000 5.758333
A-4 126342GL2 1,000.000000 5.958333 0.000000 5.958333
A-5 126342GM0 1,000.000000 6.158333 0.000000 6.158333
A-6 126342GN8 1,000.000000 6.325000 0.000000 6.325000
B 2,144.216033 0.000000 0.000000 0.000000
RU 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
A-1 773.373476 6.20000% 6.20000%
A-2 1,000.000000 6.71000% 6.71000%
A-3 1,000.000000 6.91000% 6.91000%
A-4 1,000.000000 7.15000% 7.15000%
A-5 1,000.000000 7.39000% 7.39000%
A-6 1,000.000000 7.59000% 7.59000%
B 2,367.708500 0.00000% 0.00000%
RU 0.000000 0.00000% 0.00000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: July 30, 1997 Irvine, CA 92714
Distribution Date: August 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: August 25, 1997
DELINQUENT LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE NA 1,264,152.19 746,630.61 1,018,491.86
PERCENTAGE OF POOL BAL. NA 0.6308% 0.3726% 0.5082%
NUMBER OF LOANS NA 37 21 28
PERCENTAGE OF LOANS NA 0.6586% 0.3738% 0.4984%
DELINQUENT LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 3,029,274.66
PERCENTAGE OF POOL BAL. 1.5116%
NUMBER OF LOANS 86
PERCENTAGE OF LOANS 1.5308%
BANKRUPTCY LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 428,391.28 63,812.75 161,078.45 342,172.49
PERCENTAGE OF POOL BAL. 0.2138% 0.0318% 0.0804% 0.1707%
NUMBER OF LOANS 15 2 4 9
PERCENTAGE OF LOANS 0.2670% 0.0356% 0.0712% 0.1602%
BANKRUPTCY LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 995,454.97
PERCENTAGE OF POOL BAL. 0.4967%
NUMBER OF LOANS 30
PERCENTAGE OF LOANS 0.5340%
FORECLOSURE LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
FORECLOSURE LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.0000%
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.0000%
REO PROPERTY 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
REO PROPERTY
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.0000%
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.0000%
BOOK VALUE OF LOANS IN REO: 0.00
ADDITIONAL INFORMATION CONCERNING ANY REO PROPERTY: (SEE ATTACHED, IF ANY)
WEIGHTED AVERTAGE MORTGAGE INTEREST RATE: 13.941520%
WEIGHTED AVERAGE NET MORTGAGE INTEREST RATE: 12.980020%
WEIGHTED AVERAGE REMAINING TERM TO MATURITY: 176
PRIOR NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,649
NUMBER OF SUBSEQUENT MORTGAGE LOANS ADDED TO THE POOL: 0
CURRENT NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,618
PRIOR AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 201,863,507.56
SUBSEQUENT MORTGAGE LOANS ADDED TO POOL PRINCIPAL BALANCE: 0.00
CURRENT AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 200,404,313.35
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: August 25, 1997
PRINCIPAL REMITTANCE AMOUNTS:
SCHEDULED PRINCIPAL: 361,781.70
CURTAILMENTS: 93,218.05
PREPAYMENTS IN FULL: 947,569.58
NET LIQUIDATION PROCEEDS 0.00
INSURANCE PRINCIPAL PROCEEDS: 0.00
RELEASED MORTGAGED PROPERTY PROCEEDS: 0.00
REPURCHASED PRINCIPAL AMOUNTS: 0.00
OVERCOLLATERALIZATION INCREASE AMOUNT: 1,066,032.31
SUBSTITUTION ADJUSTMENTS: 0.00
PRE-FUNDED AMOUNTS DISTRIBUTED AS PRINCIPAL: 0.00
TOTAL PRINCIPAL DISTRIBUTED: 2,468,601.64
INSURED PAYMENT INCLUDED IN CURRENT DISTRIBUTION
TO CLASS A CERTIFICATEHOLDERS: 0.00
REIMBURSEMENT AMOUNT PAID TO CERTIFICATE INSURER
FOR CURRENT DISTRIBUTION: 0.00
REQUIRED OVERCOLLATERALIZATION LEVEL AS OF THE
CURRENT REMITTANCE DATE: 19,200,000.00
OVERCOLLATERALIZATION AMOUNT AS OF THE CURRENT
DISTRIBUTION DATE: 11,237,061.18
TOTAL REPURCHASE PRICE OF ANY REPURCHASED LOANS
AS OF THE CURRENT DISTRIBUTION DATE: 0.00
CURRENT REALIZED LOSSES FOR THE RELATED COLLECTION PERIOD: 56,624.88
CURRENT CUMULATIVE REALIZED LOSSES TO DATE: 56,624.88
REMAINING PRE-FUNDED AMOUNT: 0.00
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
LOWER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
LT-1 478,000.00 394,358.52 4,265.65 24,686.01
LT-2 295,000.00 295,000.00 3,190.92 0.00
LT-3 232,000.00 232,000.00 2,509.47 0.00
LT-4 506,000.00 506,000.00 5,473.24 0.00
LT-5 115,000.00 115,000.00 1,243.92 0.00
LT-6 374,000.00 374,000.00 4,045.44 0.00
LT-A 155,816,106.79 197,826,237.43 2,139,823.77 1,374,517.95
LT-M 1,179,920.55 2,120,911.61 12,280.91 14,025.69
RL 0.00 0.00 0.00 0.00
Totals 158,996,027.34 201,863,507.56 2,172,833.32 1,413,229.65
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
LT-1 28,951.66 0.00 0.00 369,672.51
LT-2 3,190.92 0.00 0.00 295,000.00
LT-3 2,509.47 0.00 0.00 232,000.00
LT-4 5,473.24 0.00 0.00 506,000.00
LT-5 1,243.92 0.00 0.00 115,000.00
LT-6 4,045.44 0.00 0.00 374,000.00
LT-A 3,514,341.72 55,492.38 0.00 196,396,227.10
LT-M 26,306.60 1,132.50 10,660.32 2,116,413.74
RL 0.00 0.00 0.00 0.00
Totals 3,586,062.97 56,624.88 10,660.32 200,404,313.35
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
LT-1 825.017824 8.923954 51.644372 60.568326
LT-2 1,000.000000 10.816678 0.000000 10.816678
LT-3 1,000.000000 10.816681 0.000000 10.816681
LT-4 1,000.000000 10.816680 0.000000 10.816680
LT-5 1,000.000000 10.816696 0.000000 10.816696
LT-6 1,000.000000 10.816684 0.000000 10.816684
LT-A 1,269.613530 13.733008 8.821411 22.554419
LT-M 1,797.503747 10.408252 11.886978 22.295230
RL 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
LT-1 773.373452 12.98002% 12.98002%
LT-2 1,000.000000 12.98002% 12.98002%
LT-3 1,000.000000 12.98002% 12.98002%
LT-4 1,000.000000 12.98002% 12.98002%
LT-5 1,000.000000 12.98002% 12.98002%
LT-6 1,000.000000 12.98002% 12.98002%
LT-A 1,260.435979 12.98002% 12.98002%
LT-M 1,793.691736 12.98002% 12.98002%
RL 0.000000 0.000000% 0.000000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: July 30, 1997 Irvine, CA 92714
Distribution Date: August 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
UPPER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
A-1 47,800,000.00 39,435,835.81 203,751.91 2,468,601.64
A-2 29,500,000.00 29,500,000.00 164,954.17 0.00
A-3 23,200,000.00 23,200,000.00 133,593.33 0.00
A-4 50,600,000.00 50,600,000.00 301,491.67 0.00
A-5 11,500,000.00 11,500,000.00 70,820.83 0.00
A-6 37,400,000.00 37,400,000.00 236,555.00 0.00
B 4,769,880.27 10,227,653.75 0.00 0.00
RU 0.00 0.00 0.00 0.00
Totals 204,769,880.27 201,863,507.56 1,111,166.91 2,468,601.64
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
A-1 2,672,353.55 0.00 0.00 36,967,252.17
A-2 164,954.17 0.00 0.00 29,500,000.00
A-3 133,593.33 0.00 0.00 23,200,000.00
A-4 301,491.67 0.00 0.00 50,600,000.00
A-5 70,820.83 0.00 0.00 11,500,000.00
A-6 236,555.00 0.00 0.00 37,400,000.00
B 0.00 0.00 1,066,032.31 6,184,253.68
RU 0.00 0.00 0.00 0.00
Totals 3,579,768.55 0.00 1,066,032.31 200,460,938.23
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
A-1 126342GH1 825.017962 4.262592 51.644386 55.906978
A-2 126342GJ7 1,000.000000 5.591667 0.000000 5.591667
A-3 126342GK4 1,000.000000 5.758333 0.000000 5.758333
A-4 126342GL2 1,000.000000 5.958333 0.000000 5.958333
A-5 126342GM0 1,000.000000 6.158333 0.000000 6.158333
A-6 126342GN8 1,000.000000 6.325000 0.000000 6.325000
B 2,144.216033 0.000000 0.000000 0.000000
RU 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
A-1 773.373476 6.20000% 6.20000%
A-2 1,000.000000 6.71000% 6.71000%
A-3 1,000.000000 6.91000% 6.91000%
A-4 1,000.000000 7.15000% 7.15000%
A-5 1,000.000000 7.39000% 7.39000%
A-6 1,000.000000 7.59000% 7.59000%
B 2,367.708500 0.00000% 0.00000%
RU 0.000000 0.00000% 0.00000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: July 30, 1997 Irvine, CA 92714
Distribution Date: August 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: August 25, 1997
DELINQUENT LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE NA 1,264,152.19 746,630.61 1,018,491.86
PERCENTAGE OF POOL BAL. NA 0.6308% 0.3726% 0.5082%
NUMBER OF LOANS NA 37 21 28
PERCENTAGE OF LOANS NA 0.6586% 0.3738% 0.4984%
DELINQUENT LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 3,029,274.66
PERCENTAGE OF POOL BAL. 1.5116%
NUMBER OF LOANS 86
PERCENTAGE OF LOANS 1.5308%
BANKRUPTCY LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 428,391.28 63,812.75 161,078.45 342,172.49
PERCENTAGE OF POOL BAL. 0.2138% 0.0318% 0.0804% 0.1707%
NUMBER OF LOANS 15 2 4 9
PERCENTAGE OF LOANS 0.2670% 0.0356% 0.0712% 0.1602%
BANKRUPTCY LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 995,454.97
PERCENTAGE OF POOL BAL. 0.4967%
NUMBER OF LOANS 30
PERCENTAGE OF LOANS 0.5340%
FORECLOSURE LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
FORECLOSURE LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.0000%
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.0000%
REO PROPERTY 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
REO PROPERTY
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.0000%
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.0000%
BOOK VALUE OF LOANS IN REO: 0.00
ADDITIONAL INFORMATION CONCERNING ANY REO PROPERTY: (SEE ATTACHED, IF ANY)
WEIGHTED AVERTAGE MORTGAGE INTEREST RATE: 13.941520%
WEIGHTED AVERAGE NET MORTGAGE INTEREST RATE: 12.980020%
WEIGHTED AVERAGE REMAINING TERM TO MATURITY: 176
PRIOR NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,649
NUMBER OF SUBSEQUENT MORTGAGE LOANS ADDED TO THE POOL: 0
CURRENT NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,618
PRIOR AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 201,863,507.56
SUBSEQUENT MORTGAGE LOANS ADDED TO POOL PRINCIPAL BALANCE: 0.00
CURRENT AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 200,404,313.35
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: August 25, 1997
PRINCIPAL REMITTANCE AMOUNTS:
SCHEDULED PRINCIPAL: 361,781.70
CURTAILMENTS: 93,218.05
PREPAYMENTS IN FULL: 947,569.58
NET LIQUIDATION PROCEEDS 0.00
INSURANCE PRINCIPAL PROCEEDS: 0.00
RELEASED MORTGAGED PROPERTY PROCEEDS: 0.00
REPURCHASED PRINCIPAL AMOUNTS: 0.00
OVERCOLLATERALIZATION INCREASE AMOUNT: 1,066,032.31
SUBSTITUTION ADJUSTMENTS: 0.00
PRE-FUNDED AMOUNTS DISTRIBUTED AS PRINCIPAL: 0.00
TOTAL PRINCIPAL DISTRIBUTED: 2,468,601.64
INSURED PAYMENT INCLUDED IN CURRENT DISTRIBUTION
TO CLASS A CERTIFICATEHOLDERS: 0.00
REIMBURSEMENT AMOUNT PAID TO CERTIFICATE INSURER
FOR CURRENT DISTRIBUTION: 0.00
REQUIRED OVERCOLLATERALIZATION LEVEL AS OF THE
CURRENT REMITTANCE DATE: 19,200,000.00
OVERCOLLATERALIZATION AMOUNT AS OF THE CURRENT
DISTRIBUTION DATE: 11,237,061.18
TOTAL REPURCHASE PRICE OF ANY REPURCHASED LOANS
AS OF THE CURRENT DISTRIBUTION DATE: 0.00
CURRENT REALIZED LOSSES FOR THE RELATED COLLECTION PERIOD: 56,624.88
CURRENT CUMULATIVE REALIZED LOSSES TO DATE: 56,624.88
REMAINING PRE-FUNDED AMOUNT: 0.00
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
LOWER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
LT-1 478,000.00 394,358.52 4,265.65 24,686.01
LT-2 295,000.00 295,000.00 3,190.92 0.00
LT-3 232,000.00 232,000.00 2,509.47 0.00
LT-4 506,000.00 506,000.00 5,473.24 0.00
LT-5 115,000.00 115,000.00 1,243.92 0.00
LT-6 374,000.00 374,000.00 4,045.44 0.00
LT-A 155,816,106.79 197,826,237.43 2,139,823.77 1,374,517.95
LT-M 1,179,920.55 2,120,911.61 12,280.91 14,025.69
RL 0.00 0.00 0.00 0.00
Totals 158,996,027.34 201,863,507.56 2,172,833.32 1,413,229.65
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
LT-1 28,951.66 0.00 0.00 369,672.51
LT-2 3,190.92 0.00 0.00 295,000.00
LT-3 2,509.47 0.00 0.00 232,000.00
LT-4 5,473.24 0.00 0.00 506,000.00
LT-5 1,243.92 0.00 0.00 115,000.00
LT-6 4,045.44 0.00 0.00 374,000.00
LT-A 3,514,341.72 55,492.38 0.00 196,396,227.10
LT-M 26,306.60 1,132.50 10,660.32 2,116,413.74
RL 0.00 0.00 0.00 0.00
Totals 3,586,062.97 56,624.88 10,660.32 200,404,313.35
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
LT-1 825.017824 8.923954 51.644372 60.568326
LT-2 1,000.000000 10.816678 0.000000 10.816678
LT-3 1,000.000000 10.816681 0.000000 10.816681
LT-4 1,000.000000 10.816680 0.000000 10.816680
LT-5 1,000.000000 10.816696 0.000000 10.816696
LT-6 1,000.000000 10.816684 0.000000 10.816684
LT-A 1,269.613530 13.733008 8.821411 22.554419
LT-M 1,797.503747 10.408252 11.886978 22.295230
RL 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
LT-1 773.373452 12.98002% 12.98002%
LT-2 1,000.000000 12.98002% 12.98002%
LT-3 1,000.000000 12.98002% 12.98002%
LT-4 1,000.000000 12.98002% 12.98002%
LT-5 1,000.000000 12.98002% 12.98002%
LT-6 1,000.000000 12.98002% 12.98002%
LT-A 1,260.435979 12.98002% 12.98002%
LT-M 1,793.691736 12.98002% 12.98002%
RL 0.000000 0.000000% 0.000000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: July 30, 1997 Irvine, CA 92714
Distribution Date: August 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
UPPER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
A-1 47,800,000.00 39,435,835.81 203,751.91 2,468,601.64
A-2 29,500,000.00 29,500,000.00 164,954.17 0.00
A-3 23,200,000.00 23,200,000.00 133,593.33 0.00
A-4 50,600,000.00 50,600,000.00 301,491.67 0.00
A-5 11,500,000.00 11,500,000.00 70,820.83 0.00
A-6 37,400,000.00 37,400,000.00 236,555.00 0.00
B 4,769,880.27 10,227,653.75 0.00 0.00
RU 0.00 0.00 0.00 0.00
Totals 204,769,880.27 201,863,507.56 1,111,166.91 2,468,601.64
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
A-1 2,672,353.55 0.00 0.00 36,967,252.17
A-2 164,954.17 0.00 0.00 29,500,000.00
A-3 133,593.33 0.00 0.00 23,200,000.00
A-4 301,491.67 0.00 0.00 50,600,000.00
A-5 70,820.83 0.00 0.00 11,500,000.00
A-6 236,555.00 0.00 0.00 37,400,000.00
B 0.00 0.00 1,066,032.31 6,184,253.68
RU 0.00 0.00 0.00 0.00
Totals 3,579,768.55 0.00 1,066,032.31 200,460,938.23
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
A-1 126342GH1 825.017962 4.262592 51.644386 55.906978
A-2 126342GJ7 1,000.000000 5.591667 0.000000 5.591667
A-3 126342GK4 1,000.000000 5.758333 0.000000 5.758333
A-4 126342GL2 1,000.000000 5.958333 0.000000 5.958333
A-5 126342GM0 1,000.000000 6.158333 0.000000 6.158333
A-6 126342GN8 1,000.000000 6.325000 0.000000 6.325000
B 2,144.216033 0.000000 0.000000 0.000000
RU 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
A-1 773.373476 6.20000% 6.20000%
A-2 1,000.000000 6.71000% 6.71000%
A-3 1,000.000000 6.91000% 6.91000%
A-4 1,000.000000 7.15000% 7.15000%
A-5 1,000.000000 7.39000% 7.39000%
A-6 1,000.000000 7.59000% 7.59000%
B 2,367.708500 0.00000% 0.00000%
RU 0.000000 0.00000% 0.00000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: July 30, 1997 Irvine, CA 92714
Distribution Date: August 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: August 25, 1997
DELINQUENT LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE NA 1,264,152.19 746,630.61 1,018,491.86
PERCENTAGE OF POOL BAL. NA 0.6308% 0.3726% 0.5082%
NUMBER OF LOANS NA 37 21 28
PERCENTAGE OF LOANS NA 0.6586% 0.3738% 0.4984%
DELINQUENT LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 3,029,274.66
PERCENTAGE OF POOL BAL. 1.5116%
NUMBER OF LOANS 86
PERCENTAGE OF LOANS 1.5308%
BANKRUPTCY LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 428,391.28 63,812.75 161,078.45 342,172.49
PERCENTAGE OF POOL BAL. 0.2138% 0.0318% 0.0804% 0.1707%
NUMBER OF LOANS 15 2 4 9
PERCENTAGE OF LOANS 0.2670% 0.0356% 0.0712% 0.1602%
BANKRUPTCY LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 995,454.97
PERCENTAGE OF POOL BAL. 0.4967%
NUMBER OF LOANS 30
PERCENTAGE OF LOANS 0.5340%
FORECLOSURE LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
FORECLOSURE LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.0000%
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.0000%
REO PROPERTY 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
REO PROPERTY
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.0000%
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.0000%
BOOK VALUE OF LOANS IN REO: 0.00
ADDITIONAL INFORMATION CONCERNING ANY REO PROPERTY: (SEE ATTACHED, IF ANY)
WEIGHTED AVERTAGE MORTGAGE INTEREST RATE: 13.941520%
WEIGHTED AVERAGE NET MORTGAGE INTEREST RATE: 12.980020%
WEIGHTED AVERAGE REMAINING TERM TO MATURITY: 176
PRIOR NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,649
NUMBER OF SUBSEQUENT MORTGAGE LOANS ADDED TO THE POOL: 0
CURRENT NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,618
PRIOR AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 201,863,507.56
SUBSEQUENT MORTGAGE LOANS ADDED TO POOL PRINCIPAL BALANCE: 0.00
CURRENT AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 200,404,313.35
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: August 25, 1997
PRINCIPAL REMITTANCE AMOUNTS:
SCHEDULED PRINCIPAL: 361,781.70
CURTAILMENTS: 93,218.05
PREPAYMENTS IN FULL: 947,569.58
NET LIQUIDATION PROCEEDS 0.00
INSURANCE PRINCIPAL PROCEEDS: 0.00
RELEASED MORTGAGED PROPERTY PROCEEDS: 0.00
REPURCHASED PRINCIPAL AMOUNTS: 0.00
OVERCOLLATERALIZATION INCREASE AMOUNT: 1,066,032.31
SUBSTITUTION ADJUSTMENTS: 0.00
PRE-FUNDED AMOUNTS DISTRIBUTED AS PRINCIPAL: 0.00
TOTAL PRINCIPAL DISTRIBUTED: 2,468,601.64
INSURED PAYMENT INCLUDED IN CURRENT DISTRIBUTION
TO CLASS A CERTIFICATEHOLDERS: 0.00
REIMBURSEMENT AMOUNT PAID TO CERTIFICATE INSURER
FOR CURRENT DISTRIBUTION: 0.00
REQUIRED OVERCOLLATERALIZATION LEVEL AS OF THE
CURRENT REMITTANCE DATE: 19,200,000.00
OVERCOLLATERALIZATION AMOUNT AS OF THE CURRENT
DISTRIBUTION DATE: 11,237,061.18
TOTAL REPURCHASE PRICE OF ANY REPURCHASED LOANS
AS OF THE CURRENT DISTRIBUTION DATE: 0.00
CURRENT REALIZED LOSSES FOR THE RELATED COLLECTION PERIOD: 56,624.88
CURRENT CUMULATIVE REALIZED LOSSES TO DATE: 56,624.88
REMAINING PRE-FUNDED AMOUNT: 0.00
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
LOWER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
LT-1 478,000.00 394,358.52 4,265.65 24,686.01
LT-2 295,000.00 295,000.00 3,190.92 0.00
LT-3 232,000.00 232,000.00 2,509.47 0.00
LT-4 506,000.00 506,000.00 5,473.24 0.00
LT-5 115,000.00 115,000.00 1,243.92 0.00
LT-6 374,000.00 374,000.00 4,045.44 0.00
LT-A 155,816,106.79 197,826,237.43 2,139,823.77 1,374,517.95
LT-M 1,179,920.55 2,120,911.61 12,280.91 14,025.69
RL 0.00 0.00 0.00 0.00
Totals 158,996,027.34 201,863,507.56 2,172,833.32 1,413,229.65
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
LT-1 28,951.66 0.00 0.00 369,672.51
LT-2 3,190.92 0.00 0.00 295,000.00
LT-3 2,509.47 0.00 0.00 232,000.00
LT-4 5,473.24 0.00 0.00 506,000.00
LT-5 1,243.92 0.00 0.00 115,000.00
LT-6 4,045.44 0.00 0.00 374,000.00
LT-A 3,514,341.72 55,492.38 0.00 196,396,227.10
LT-M 26,306.60 1,132.50 10,660.32 2,116,413.74
RL 0.00 0.00 0.00 0.00
Totals 3,586,062.97 56,624.88 10,660.32 200,404,313.35
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
LT-1 825.017824 8.923954 51.644372 60.568326
LT-2 1,000.000000 10.816678 0.000000 10.816678
LT-3 1,000.000000 10.816681 0.000000 10.816681
LT-4 1,000.000000 10.816680 0.000000 10.816680
LT-5 1,000.000000 10.816696 0.000000 10.816696
LT-6 1,000.000000 10.816684 0.000000 10.816684
LT-A 1,269.613530 13.733008 8.821411 22.554419
LT-M 1,797.503747 10.408252 11.886978 22.295230
RL 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
LT-1 773.373452 12.98002% 12.98002%
LT-2 1,000.000000 12.98002% 12.98002%
LT-3 1,000.000000 12.98002% 12.98002%
LT-4 1,000.000000 12.98002% 12.98002%
LT-5 1,000.000000 12.98002% 12.98002%
LT-6 1,000.000000 12.98002% 12.98002%
LT-A 1,260.435979 12.98002% 12.98002%
LT-M 1,793.691736 12.98002% 12.98002%
RL 0.000000 0.000000% 0.000000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: July 30, 1997 Irvine, CA 92714
Distribution Date: August 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
UPPER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
A-1 47,800,000.00 39,435,835.81 203,751.91 2,468,601.64
A-2 29,500,000.00 29,500,000.00 164,954.17 0.00
A-3 23,200,000.00 23,200,000.00 133,593.33 0.00
A-4 50,600,000.00 50,600,000.00 301,491.67 0.00
A-5 11,500,000.00 11,500,000.00 70,820.83 0.00
A-6 37,400,000.00 37,400,000.00 236,555.00 0.00
B 4,769,880.27 10,227,653.75 0.00 0.00
RU 0.00 0.00 0.00 0.00
Totals 204,769,880.27 201,863,507.56 1,111,166.91 2,468,601.64
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
A-1 2,672,353.55 0.00 0.00 36,967,252.17
A-2 164,954.17 0.00 0.00 29,500,000.00
A-3 133,593.33 0.00 0.00 23,200,000.00
A-4 301,491.67 0.00 0.00 50,600,000.00
A-5 70,820.83 0.00 0.00 11,500,000.00
A-6 236,555.00 0.00 0.00 37,400,000.00
B 0.00 0.00 1,066,032.31 6,184,253.68
RU 0.00 0.00 0.00 0.00
Totals 3,579,768.55 0.00 1,066,032.31 200,460,938.23
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
A-1 126342GH1 825.017962 4.262592 51.644386 55.906978
A-2 126342GJ7 1,000.000000 5.591667 0.000000 5.591667
A-3 126342GK4 1,000.000000 5.758333 0.000000 5.758333
A-4 126342GL2 1,000.000000 5.958333 0.000000 5.958333
A-5 126342GM0 1,000.000000 6.158333 0.000000 6.158333
A-6 126342GN8 1,000.000000 6.325000 0.000000 6.325000
B 2,144.216033 0.000000 0.000000 0.000000
RU 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
A-1 773.373476 6.20000% 6.20000%
A-2 1,000.000000 6.71000% 6.71000%
A-3 1,000.000000 6.91000% 6.91000%
A-4 1,000.000000 7.15000% 7.15000%
A-5 1,000.000000 7.39000% 7.39000%
A-6 1,000.000000 7.59000% 7.59000%
B 2,367.708500 0.00000% 0.00000%
RU 0.000000 0.00000% 0.00000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: July 30, 1997 Irvine, CA 92714
Distribution Date: August 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: August 25, 1997
DELINQUENT LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE NA 1,264,152.19 746,630.61 1,018,491.86
PERCENTAGE OF POOL BAL. NA 0.6308% 0.3726% 0.5082%
NUMBER OF LOANS NA 37 21 28
PERCENTAGE OF LOANS NA 0.6586% 0.3738% 0.4984%
DELINQUENT LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 3,029,274.66
PERCENTAGE OF POOL BAL. 1.5116%
NUMBER OF LOANS 86
PERCENTAGE OF LOANS 1.5308%
BANKRUPTCY LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 428,391.28 63,812.75 161,078.45 342,172.49
PERCENTAGE OF POOL BAL. 0.2138% 0.0318% 0.0804% 0.1707%
NUMBER OF LOANS 15 2 4 9
PERCENTAGE OF LOANS 0.2670% 0.0356% 0.0712% 0.1602%
BANKRUPTCY LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 995,454.97
PERCENTAGE OF POOL BAL. 0.4967%
NUMBER OF LOANS 30
PERCENTAGE OF LOANS 0.5340%
FORECLOSURE LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
FORECLOSURE LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.0000%
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.0000%
REO PROPERTY 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
REO PROPERTY
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.0000%
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.0000%
BOOK VALUE OF LOANS IN REO: 0.00
ADDITIONAL INFORMATION CONCERNING ANY REO PROPERTY: (SEE ATTACHED, IF ANY)
WEIGHTED AVERTAGE MORTGAGE INTEREST RATE: 13.941520%
WEIGHTED AVERAGE NET MORTGAGE INTEREST RATE: 12.980020%
WEIGHTED AVERAGE REMAINING TERM TO MATURITY: 176
PRIOR NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,649
NUMBER OF SUBSEQUENT MORTGAGE LOANS ADDED TO THE POOL: 0
CURRENT NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,618
PRIOR AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 201,863,507.56
SUBSEQUENT MORTGAGE LOANS ADDED TO POOL PRINCIPAL BALANCE: 0.00
CURRENT AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 200,404,313.35
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: August 25, 1997
PRINCIPAL REMITTANCE AMOUNTS:
SCHEDULED PRINCIPAL: 361,781.70
CURTAILMENTS: 93,218.05
PREPAYMENTS IN FULL: 947,569.58
NET LIQUIDATION PROCEEDS 0.00
INSURANCE PRINCIPAL PROCEEDS: 0.00
RELEASED MORTGAGED PROPERTY PROCEEDS: 0.00
REPURCHASED PRINCIPAL AMOUNTS: 0.00
OVERCOLLATERALIZATION INCREASE AMOUNT: 1,066,032.31
SUBSTITUTION ADJUSTMENTS: 0.00
PRE-FUNDED AMOUNTS DISTRIBUTED AS PRINCIPAL: 0.00
TOTAL PRINCIPAL DISTRIBUTED: 2,468,601.64
INSURED PAYMENT INCLUDED IN CURRENT DISTRIBUTION
TO CLASS A CERTIFICATEHOLDERS: 0.00
REIMBURSEMENT AMOUNT PAID TO CERTIFICATE INSURER
FOR CURRENT DISTRIBUTION: 0.00
REQUIRED OVERCOLLATERALIZATION LEVEL AS OF THE
CURRENT REMITTANCE DATE: 19,200,000.00
OVERCOLLATERALIZATION AMOUNT AS OF THE CURRENT
DISTRIBUTION DATE: 11,237,061.18
TOTAL REPURCHASE PRICE OF ANY REPURCHASED LOANS
AS OF THE CURRENT DISTRIBUTION DATE: 0.00
CURRENT REALIZED LOSSES FOR THE RELATED COLLECTION PERIOD: 56,624.88
CURRENT CUMULATIVE REALIZED LOSSES TO DATE: 56,624.88
REMAINING PRE-FUNDED AMOUNT: 0.00
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
LOWER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
LT-1 478,000.00 394,358.52 4,265.65 24,686.01
LT-2 295,000.00 295,000.00 3,190.92 0.00
LT-3 232,000.00 232,000.00 2,509.47 0.00
LT-4 506,000.00 506,000.00 5,473.24 0.00
LT-5 115,000.00 115,000.00 1,243.92 0.00
LT-6 374,000.00 374,000.00 4,045.44 0.00
LT-A 155,816,106.79 197,826,237.43 2,139,823.77 1,374,517.95
LT-M 1,179,920.55 2,120,911.61 12,280.91 14,025.69
RL 0.00 0.00 0.00 0.00
Totals 158,996,027.34 201,863,507.56 2,172,833.32 1,413,229.65
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
LT-1 28,951.66 0.00 0.00 369,672.51
LT-2 3,190.92 0.00 0.00 295,000.00
LT-3 2,509.47 0.00 0.00 232,000.00
LT-4 5,473.24 0.00 0.00 506,000.00
LT-5 1,243.92 0.00 0.00 115,000.00
LT-6 4,045.44 0.00 0.00 374,000.00
LT-A 3,514,341.72 55,492.38 0.00 196,396,227.10
LT-M 26,306.60 1,132.50 10,660.32 2,116,413.74
RL 0.00 0.00 0.00 0.00
Totals 3,586,062.97 56,624.88 10,660.32 200,404,313.35
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
LT-1 825.017824 8.923954 51.644372 60.568326
LT-2 1,000.000000 10.816678 0.000000 10.816678
LT-3 1,000.000000 10.816681 0.000000 10.816681
LT-4 1,000.000000 10.816680 0.000000 10.816680
LT-5 1,000.000000 10.816696 0.000000 10.816696
LT-6 1,000.000000 10.816684 0.000000 10.816684
LT-A 1,269.613530 13.733008 8.821411 22.554419
LT-M 1,797.503747 10.408252 11.886978 22.295230
RL 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
LT-1 773.373452 12.98002% 12.98002%
LT-2 1,000.000000 12.98002% 12.98002%
LT-3 1,000.000000 12.98002% 12.98002%
LT-4 1,000.000000 12.98002% 12.98002%
LT-5 1,000.000000 12.98002% 12.98002%
LT-6 1,000.000000 12.98002% 12.98002%
LT-A 1,260.435979 12.98002% 12.98002%
LT-M 1,793.691736 12.98002% 12.98002%
RL 0.000000 0.000000% 0.000000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: July 30, 1997 Irvine, CA 92714
Distribution Date: August 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
UPPER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
A-1 47,800,000.00 39,435,835.81 203,751.91 2,468,601.64
A-2 29,500,000.00 29,500,000.00 164,954.17 0.00
A-3 23,200,000.00 23,200,000.00 133,593.33 0.00
A-4 50,600,000.00 50,600,000.00 301,491.67 0.00
A-5 11,500,000.00 11,500,000.00 70,820.83 0.00
A-6 37,400,000.00 37,400,000.00 236,555.00 0.00
B 4,769,880.27 10,227,653.75 0.00 0.00
RU 0.00 0.00 0.00 0.00
Totals 204,769,880.27 201,863,507.56 1,111,166.91 2,468,601.64
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
A-1 2,672,353.55 0.00 0.00 36,967,252.17
A-2 164,954.17 0.00 0.00 29,500,000.00
A-3 133,593.33 0.00 0.00 23,200,000.00
A-4 301,491.67 0.00 0.00 50,600,000.00
A-5 70,820.83 0.00 0.00 11,500,000.00
A-6 236,555.00 0.00 0.00 37,400,000.00
B 0.00 0.00 1,066,032.31 6,184,253.68
RU 0.00 0.00 0.00 0.00
Totals 3,579,768.55 0.00 1,066,032.31 200,460,938.23
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
A-1 126342GH1 825.017962 4.262592 51.644386 55.906978
A-2 126342GJ7 1,000.000000 5.591667 0.000000 5.591667
A-3 126342GK4 1,000.000000 5.758333 0.000000 5.758333
A-4 126342GL2 1,000.000000 5.958333 0.000000 5.958333
A-5 126342GM0 1,000.000000 6.158333 0.000000 6.158333
A-6 126342GN8 1,000.000000 6.325000 0.000000 6.325000
B 2,144.216033 0.000000 0.000000 0.000000
RU 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
A-1 773.373476 6.20000% 6.20000%
A-2 1,000.000000 6.71000% 6.71000%
A-3 1,000.000000 6.91000% 6.91000%
A-4 1,000.000000 7.15000% 7.15000%
A-5 1,000.000000 7.39000% 7.39000%
A-6 1,000.000000 7.59000% 7.59000%
B 2,367.708500 0.00000% 0.00000%
RU 0.000000 0.00000% 0.00000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: July 30, 1997 Irvine, CA 92714
Distribution Date: August 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: August 25, 1997
DELINQUENT LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE NA 1,264,152.19 746,630.61 1,018,491.86
PERCENTAGE OF POOL BAL. NA 0.6308% 0.3726% 0.5082%
NUMBER OF LOANS NA 37 21 28
PERCENTAGE OF LOANS NA 0.6586% 0.3738% 0.4984%
DELINQUENT LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 3,029,274.66
PERCENTAGE OF POOL BAL. 1.5116%
NUMBER OF LOANS 86
PERCENTAGE OF LOANS 1.5308%
BANKRUPTCY LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 428,391.28 63,812.75 161,078.45 342,172.49
PERCENTAGE OF POOL BAL. 0.2138% 0.0318% 0.0804% 0.1707%
NUMBER OF LOANS 15 2 4 9
PERCENTAGE OF LOANS 0.2670% 0.0356% 0.0712% 0.1602%
BANKRUPTCY LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 995,454.97
PERCENTAGE OF POOL BAL. 0.4967%
NUMBER OF LOANS 30
PERCENTAGE OF LOANS 0.5340%
FORECLOSURE LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
FORECLOSURE LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.0000%
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.0000%
REO PROPERTY 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
REO PROPERTY
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.0000%
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.0000%
BOOK VALUE OF LOANS IN REO: 0.00
ADDITIONAL INFORMATION CONCERNING ANY REO PROPERTY: (SEE ATTACHED, IF ANY)
WEIGHTED AVERTAGE MORTGAGE INTEREST RATE: 13.941520%
WEIGHTED AVERAGE NET MORTGAGE INTEREST RATE: 12.980020%
WEIGHTED AVERAGE REMAINING TERM TO MATURITY: 176
PRIOR NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,649
NUMBER OF SUBSEQUENT MORTGAGE LOANS ADDED TO THE POOL: 0
CURRENT NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,618
PRIOR AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 201,863,507.56
SUBSEQUENT MORTGAGE LOANS ADDED TO POOL PRINCIPAL BALANCE: 0.00
CURRENT AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 200,404,313.35
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: August 25, 1997
PRINCIPAL REMITTANCE AMOUNTS:
SCHEDULED PRINCIPAL: 361,781.70
CURTAILMENTS: 93,218.05
PREPAYMENTS IN FULL: 947,569.58
NET LIQUIDATION PROCEEDS 0.00
INSURANCE PRINCIPAL PROCEEDS: 0.00
RELEASED MORTGAGED PROPERTY PROCEEDS: 0.00
REPURCHASED PRINCIPAL AMOUNTS: 0.00
OVERCOLLATERALIZATION INCREASE AMOUNT: 1,066,032.31
SUBSTITUTION ADJUSTMENTS: 0.00
PRE-FUNDED AMOUNTS DISTRIBUTED AS PRINCIPAL: 0.00
TOTAL PRINCIPAL DISTRIBUTED: 2,468,601.64
INSURED PAYMENT INCLUDED IN CURRENT DISTRIBUTION
TO CLASS A CERTIFICATEHOLDERS: 0.00
REIMBURSEMENT AMOUNT PAID TO CERTIFICATE INSURER
FOR CURRENT DISTRIBUTION: 0.00
REQUIRED OVERCOLLATERALIZATION LEVEL AS OF THE
CURRENT REMITTANCE DATE: 19,200,000.00
OVERCOLLATERALIZATION AMOUNT AS OF THE CURRENT
DISTRIBUTION DATE: 11,237,061.18
TOTAL REPURCHASE PRICE OF ANY REPURCHASED LOANS
AS OF THE CURRENT DISTRIBUTION DATE: 0.00
CURRENT REALIZED LOSSES FOR THE RELATED COLLECTION PERIOD: 56,624.88
CURRENT CUMULATIVE REALIZED LOSSES TO DATE: 56,624.88
REMAINING PRE-FUNDED AMOUNT: 0.00
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
LOWER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
LT-1 478,000.00 394,358.52 4,265.65 24,686.01
LT-2 295,000.00 295,000.00 3,190.92 0.00
LT-3 232,000.00 232,000.00 2,509.47 0.00
LT-4 506,000.00 506,000.00 5,473.24 0.00
LT-5 115,000.00 115,000.00 1,243.92 0.00
LT-6 374,000.00 374,000.00 4,045.44 0.00
LT-A 155,816,106.79 197,826,237.43 2,139,823.77 1,374,517.95
LT-M 1,179,920.55 2,120,911.61 12,280.91 14,025.69
RL 0.00 0.00 0.00 0.00
Totals 158,996,027.34 201,863,507.56 2,172,833.32 1,413,229.65
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
LT-1 28,951.66 0.00 0.00 369,672.51
LT-2 3,190.92 0.00 0.00 295,000.00
LT-3 2,509.47 0.00 0.00 232,000.00
LT-4 5,473.24 0.00 0.00 506,000.00
LT-5 1,243.92 0.00 0.00 115,000.00
LT-6 4,045.44 0.00 0.00 374,000.00
LT-A 3,514,341.72 55,492.38 0.00 196,396,227.10
LT-M 26,306.60 1,132.50 10,660.32 2,116,413.74
RL 0.00 0.00 0.00 0.00
Totals 3,586,062.97 56,624.88 10,660.32 200,404,313.35
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
LT-1 825.017824 8.923954 51.644372 60.568326
LT-2 1,000.000000 10.816678 0.000000 10.816678
LT-3 1,000.000000 10.816681 0.000000 10.816681
LT-4 1,000.000000 10.816680 0.000000 10.816680
LT-5 1,000.000000 10.816696 0.000000 10.816696
LT-6 1,000.000000 10.816684 0.000000 10.816684
LT-A 1,269.613530 13.733008 8.821411 22.554419
LT-M 1,797.503747 10.408252 11.886978 22.295230
RL 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
LT-1 773.373452 12.98002% 12.98002%
LT-2 1,000.000000 12.98002% 12.98002%
LT-3 1,000.000000 12.98002% 12.98002%
LT-4 1,000.000000 12.98002% 12.98002%
LT-5 1,000.000000 12.98002% 12.98002%
LT-6 1,000.000000 12.98002% 12.98002%
LT-A 1,260.435979 12.98002% 12.98002%
LT-M 1,793.691736 12.98002% 12.98002%
RL 0.000000 0.000000% 0.000000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: July 30, 1997 Irvine, CA 92714
Distribution Date: August 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
UPPER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
A-1 47,800,000.00 39,435,835.81 203,751.91 2,468,601.64
A-2 29,500,000.00 29,500,000.00 164,954.17 0.00
A-3 23,200,000.00 23,200,000.00 133,593.33 0.00
A-4 50,600,000.00 50,600,000.00 301,491.67 0.00
A-5 11,500,000.00 11,500,000.00 70,820.83 0.00
A-6 37,400,000.00 37,400,000.00 236,555.00 0.00
B 4,769,880.27 10,227,653.75 0.00 0.00
RU 0.00 0.00 0.00 0.00
Totals 204,769,880.27 201,863,507.56 1,111,166.91 2,468,601.64
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
A-1 2,672,353.55 0.00 0.00 36,967,252.17
A-2 164,954.17 0.00 0.00 29,500,000.00
A-3 133,593.33 0.00 0.00 23,200,000.00
A-4 301,491.67 0.00 0.00 50,600,000.00
A-5 70,820.83 0.00 0.00 11,500,000.00
A-6 236,555.00 0.00 0.00 37,400,000.00
B 0.00 0.00 1,066,032.31 6,184,253.68
RU 0.00 0.00 0.00 0.00
Totals 3,579,768.55 0.00 1,066,032.31 200,460,938.23
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
A-1 126342GH1 825.017962 4.262592 51.644386 55.906978
A-2 126342GJ7 1,000.000000 5.591667 0.000000 5.591667
A-3 126342GK4 1,000.000000 5.758333 0.000000 5.758333
A-4 126342GL2 1,000.000000 5.958333 0.000000 5.958333
A-5 126342GM0 1,000.000000 6.158333 0.000000 6.158333
A-6 126342GN8 1,000.000000 6.325000 0.000000 6.325000
B 2,144.216033 0.000000 0.000000 0.000000
RU 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
A-1 773.373476 6.20000% 6.20000%
A-2 1,000.000000 6.71000% 6.71000%
A-3 1,000.000000 6.91000% 6.91000%
A-4 1,000.000000 7.15000% 7.15000%
A-5 1,000.000000 7.39000% 7.39000%
A-6 1,000.000000 7.59000% 7.59000%
B 2,367.708500 0.00000% 0.00000%
RU 0.000000 0.00000% 0.00000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: July 30, 1997 Irvine, CA 92714
Distribution Date: August 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: August 25, 1997
DELINQUENT LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE NA 1,264,152.19 746,630.61 1,018,491.86
PERCENTAGE OF POOL BAL. NA 0.6308% 0.3726% 0.5082%
NUMBER OF LOANS NA 37 21 28
PERCENTAGE OF LOANS NA 0.6586% 0.3738% 0.4984%
DELINQUENT LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 3,029,274.66
PERCENTAGE OF POOL BAL. 1.5116%
NUMBER OF LOANS 86
PERCENTAGE OF LOANS 1.5308%
BANKRUPTCY LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 428,391.28 63,812.75 161,078.45 342,172.49
PERCENTAGE OF POOL BAL. 0.2138% 0.0318% 0.0804% 0.1707%
NUMBER OF LOANS 15 2 4 9
PERCENTAGE OF LOANS 0.2670% 0.0356% 0.0712% 0.1602%
BANKRUPTCY LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 995,454.97
PERCENTAGE OF POOL BAL. 0.4967%
NUMBER OF LOANS 30
PERCENTAGE OF LOANS 0.5340%
FORECLOSURE LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
FORECLOSURE LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.0000%
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.0000%
REO PROPERTY 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
REO PROPERTY
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.0000%
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.0000%
BOOK VALUE OF LOANS IN REO: 0.00
ADDITIONAL INFORMATION CONCERNING ANY REO PROPERTY: (SEE ATTACHED, IF ANY)
WEIGHTED AVERTAGE MORTGAGE INTEREST RATE: 13.941520%
WEIGHTED AVERAGE NET MORTGAGE INTEREST RATE: 12.980020%
WEIGHTED AVERAGE REMAINING TERM TO MATURITY: 176
PRIOR NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,649
NUMBER OF SUBSEQUENT MORTGAGE LOANS ADDED TO THE POOL: 0
CURRENT NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,618
PRIOR AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 201,863,507.56
SUBSEQUENT MORTGAGE LOANS ADDED TO POOL PRINCIPAL BALANCE: 0.00
CURRENT AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 200,404,313.35
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: August 25, 1997
PRINCIPAL REMITTANCE AMOUNTS:
SCHEDULED PRINCIPAL: 361,781.70
CURTAILMENTS: 93,218.05
PREPAYMENTS IN FULL: 947,569.58
NET LIQUIDATION PROCEEDS 0.00
INSURANCE PRINCIPAL PROCEEDS: 0.00
RELEASED MORTGAGED PROPERTY PROCEEDS: 0.00
REPURCHASED PRINCIPAL AMOUNTS: 0.00
OVERCOLLATERALIZATION INCREASE AMOUNT: 1,066,032.31
SUBSTITUTION ADJUSTMENTS: 0.00
PRE-FUNDED AMOUNTS DISTRIBUTED AS PRINCIPAL: 0.00
TOTAL PRINCIPAL DISTRIBUTED: 2,468,601.64
INSURED PAYMENT INCLUDED IN CURRENT DISTRIBUTION
TO CLASS A CERTIFICATEHOLDERS: 0.00
REIMBURSEMENT AMOUNT PAID TO CERTIFICATE INSURER
FOR CURRENT DISTRIBUTION: 0.00
REQUIRED OVERCOLLATERALIZATION LEVEL AS OF THE
CURRENT REMITTANCE DATE: 19,200,000.00
OVERCOLLATERALIZATION AMOUNT AS OF THE CURRENT
DISTRIBUTION DATE: 11,237,061.18
TOTAL REPURCHASE PRICE OF ANY REPURCHASED LOANS
AS OF THE CURRENT DISTRIBUTION DATE: 0.00
CURRENT REALIZED LOSSES FOR THE RELATED COLLECTION PERIOD: 56,624.88
CURRENT CUMULATIVE REALIZED LOSSES TO DATE: 56,624.88
REMAINING PRE-FUNDED AMOUNT: 0.00
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
LOWER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
LT-1 478,000.00 394,358.52 4,265.65 24,686.01
LT-2 295,000.00 295,000.00 3,190.92 0.00
LT-3 232,000.00 232,000.00 2,509.47 0.00
LT-4 506,000.00 506,000.00 5,473.24 0.00
LT-5 115,000.00 115,000.00 1,243.92 0.00
LT-6 374,000.00 374,000.00 4,045.44 0.00
LT-A 155,816,106.79 197,826,237.43 2,139,823.77 1,374,517.95
LT-M 1,179,920.55 2,120,911.61 12,280.91 14,025.69
RL 0.00 0.00 0.00 0.00
Totals 158,996,027.34 201,863,507.56 2,172,833.32 1,413,229.65
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
LT-1 28,951.66 0.00 0.00 369,672.51
LT-2 3,190.92 0.00 0.00 295,000.00
LT-3 2,509.47 0.00 0.00 232,000.00
LT-4 5,473.24 0.00 0.00 506,000.00
LT-5 1,243.92 0.00 0.00 115,000.00
LT-6 4,045.44 0.00 0.00 374,000.00
LT-A 3,514,341.72 55,492.38 0.00 196,396,227.10
LT-M 26,306.60 1,132.50 10,660.32 2,116,413.74
RL 0.00 0.00 0.00 0.00
Totals 3,586,062.97 56,624.88 10,660.32 200,404,313.35
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
LT-1 825.017824 8.923954 51.644372 60.568326
LT-2 1,000.000000 10.816678 0.000000 10.816678
LT-3 1,000.000000 10.816681 0.000000 10.816681
LT-4 1,000.000000 10.816680 0.000000 10.816680
LT-5 1,000.000000 10.816696 0.000000 10.816696
LT-6 1,000.000000 10.816684 0.000000 10.816684
LT-A 1,269.613530 13.733008 8.821411 22.554419
LT-M 1,797.503747 10.408252 11.886978 22.295230
RL 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
LT-1 773.373452 12.98002% 12.98002%
LT-2 1,000.000000 12.98002% 12.98002%
LT-3 1,000.000000 12.98002% 12.98002%
LT-4 1,000.000000 12.98002% 12.98002%
LT-5 1,000.000000 12.98002% 12.98002%
LT-6 1,000.000000 12.98002% 12.98002%
LT-A 1,260.435979 12.98002% 12.98002%
LT-M 1,793.691736 12.98002% 12.98002%
RL 0.000000 0.000000% 0.000000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: July 30, 1997 Irvine, CA 92714
Distribution Date: August 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
UPPER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
A-1 47,800,000.00 39,435,835.81 203,751.91 2,468,601.64
A-2 29,500,000.00 29,500,000.00 164,954.17 0.00
A-3 23,200,000.00 23,200,000.00 133,593.33 0.00
A-4 50,600,000.00 50,600,000.00 301,491.67 0.00
A-5 11,500,000.00 11,500,000.00 70,820.83 0.00
A-6 37,400,000.00 37,400,000.00 236,555.00 0.00
B 4,769,880.27 10,227,653.75 0.00 0.00
RU 0.00 0.00 0.00 0.00
Totals 204,769,880.27 201,863,507.56 1,111,166.91 2,468,601.64
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
A-1 2,672,353.55 0.00 0.00 36,967,252.17
A-2 164,954.17 0.00 0.00 29,500,000.00
A-3 133,593.33 0.00 0.00 23,200,000.00
A-4 301,491.67 0.00 0.00 50,600,000.00
A-5 70,820.83 0.00 0.00 11,500,000.00
A-6 236,555.00 0.00 0.00 37,400,000.00
B 0.00 0.00 1,066,032.31 6,184,253.68
RU 0.00 0.00 0.00 0.00
Totals 3,579,768.55 0.00 1,066,032.31 200,460,938.23
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
A-1 126342GH1 825.017962 4.262592 51.644386 55.906978
A-2 126342GJ7 1,000.000000 5.591667 0.000000 5.591667
A-3 126342GK4 1,000.000000 5.758333 0.000000 5.758333
A-4 126342GL2 1,000.000000 5.958333 0.000000 5.958333
A-5 126342GM0 1,000.000000 6.158333 0.000000 6.158333
A-6 126342GN8 1,000.000000 6.325000 0.000000 6.325000
B 2,144.216033 0.000000 0.000000 0.000000
RU 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
A-1 773.373476 6.20000% 6.20000%
A-2 1,000.000000 6.71000% 6.71000%
A-3 1,000.000000 6.91000% 6.91000%
A-4 1,000.000000 7.15000% 7.15000%
A-5 1,000.000000 7.39000% 7.39000%
A-6 1,000.000000 7.59000% 7.59000%
B 2,367.708500 0.00000% 0.00000%
RU 0.000000 0.00000% 0.00000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: July 30, 1997 Irvine, CA 92714
Distribution Date: August 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: August 25, 1997
DELINQUENT LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE NA 1,264,152.19 746,630.61 1,018,491.86
PERCENTAGE OF POOL BAL. NA 0.6308% 0.3726% 0.5082%
NUMBER OF LOANS NA 37 21 28
PERCENTAGE OF LOANS NA 0.6586% 0.3738% 0.4984%
DELINQUENT LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 3,029,274.66
PERCENTAGE OF POOL BAL. 1.5116%
NUMBER OF LOANS 86
PERCENTAGE OF LOANS 1.5308%
BANKRUPTCY LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 428,391.28 63,812.75 161,078.45 342,172.49
PERCENTAGE OF POOL BAL. 0.2138% 0.0318% 0.0804% 0.1707%
NUMBER OF LOANS 15 2 4 9
PERCENTAGE OF LOANS 0.2670% 0.0356% 0.0712% 0.1602%
BANKRUPTCY LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 995,454.97
PERCENTAGE OF POOL BAL. 0.4967%
NUMBER OF LOANS 30
PERCENTAGE OF LOANS 0.5340%
FORECLOSURE LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
FORECLOSURE LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.0000%
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.0000%
REO PROPERTY 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
REO PROPERTY
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.0000%
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.0000%
BOOK VALUE OF LOANS IN REO: 0.00
ADDITIONAL INFORMATION CONCERNING ANY REO PROPERTY: (SEE ATTACHED, IF ANY)
WEIGHTED AVERTAGE MORTGAGE INTEREST RATE: 13.941520%
WEIGHTED AVERAGE NET MORTGAGE INTEREST RATE: 12.980020%
WEIGHTED AVERAGE REMAINING TERM TO MATURITY: 176
PRIOR NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,649
NUMBER OF SUBSEQUENT MORTGAGE LOANS ADDED TO THE POOL: 0
CURRENT NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,618
PRIOR AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 201,863,507.56
SUBSEQUENT MORTGAGE LOANS ADDED TO POOL PRINCIPAL BALANCE: 0.00
CURRENT AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 200,404,313.35
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: August 25, 1997
PRINCIPAL REMITTANCE AMOUNTS:
SCHEDULED PRINCIPAL: 361,781.70
CURTAILMENTS: 93,218.05
PREPAYMENTS IN FULL: 947,569.58
NET LIQUIDATION PROCEEDS 0.00
INSURANCE PRINCIPAL PROCEEDS: 0.00
RELEASED MORTGAGED PROPERTY PROCEEDS: 0.00
REPURCHASED PRINCIPAL AMOUNTS: 0.00
OVERCOLLATERALIZATION INCREASE AMOUNT: 1,066,032.31
SUBSTITUTION ADJUSTMENTS: 0.00
PRE-FUNDED AMOUNTS DISTRIBUTED AS PRINCIPAL: 0.00
TOTAL PRINCIPAL DISTRIBUTED: 2,468,601.64
INSURED PAYMENT INCLUDED IN CURRENT DISTRIBUTION
TO CLASS A CERTIFICATEHOLDERS: 0.00
REIMBURSEMENT AMOUNT PAID TO CERTIFICATE INSURER
FOR CURRENT DISTRIBUTION: 0.00
REQUIRED OVERCOLLATERALIZATION LEVEL AS OF THE
CURRENT REMITTANCE DATE: 19,200,000.00
OVERCOLLATERALIZATION AMOUNT AS OF THE CURRENT
DISTRIBUTION DATE: 11,237,061.18
TOTAL REPURCHASE PRICE OF ANY REPURCHASED LOANS
AS OF THE CURRENT DISTRIBUTION DATE: 0.00
CURRENT REALIZED LOSSES FOR THE RELATED COLLECTION PERIOD: 56,624.88
CURRENT CUMULATIVE REALIZED LOSSES TO DATE: 56,624.88
REMAINING PRE-FUNDED AMOUNT: 0.00
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
LOWER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
LT-1 478,000.00 394,358.52 4,265.65 24,686.01
LT-2 295,000.00 295,000.00 3,190.92 0.00
LT-3 232,000.00 232,000.00 2,509.47 0.00
LT-4 506,000.00 506,000.00 5,473.24 0.00
LT-5 115,000.00 115,000.00 1,243.92 0.00
LT-6 374,000.00 374,000.00 4,045.44 0.00
LT-A 155,816,106.79 197,826,237.43 2,139,823.77 1,374,517.95
LT-M 1,179,920.55 2,120,911.61 12,280.91 14,025.69
RL 0.00 0.00 0.00 0.00
Totals 158,996,027.34 201,863,507.56 2,172,833.32 1,413,229.65
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
LT-1 28,951.66 0.00 0.00 369,672.51
LT-2 3,190.92 0.00 0.00 295,000.00
LT-3 2,509.47 0.00 0.00 232,000.00
LT-4 5,473.24 0.00 0.00 506,000.00
LT-5 1,243.92 0.00 0.00 115,000.00
LT-6 4,045.44 0.00 0.00 374,000.00
LT-A 3,514,341.72 55,492.38 0.00 196,396,227.10
LT-M 26,306.60 1,132.50 10,660.32 2,116,413.74
RL 0.00 0.00 0.00 0.00
Totals 3,586,062.97 56,624.88 10,660.32 200,404,313.35
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
LT-1 825.017824 8.923954 51.644372 60.568326
LT-2 1,000.000000 10.816678 0.000000 10.816678
LT-3 1,000.000000 10.816681 0.000000 10.816681
LT-4 1,000.000000 10.816680 0.000000 10.816680
LT-5 1,000.000000 10.816696 0.000000 10.816696
LT-6 1,000.000000 10.816684 0.000000 10.816684
LT-A 1,269.613530 13.733008 8.821411 22.554419
LT-M 1,797.503747 10.408252 11.886978 22.295230
RL 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
LT-1 773.373452 12.98002% 12.98002%
LT-2 1,000.000000 12.98002% 12.98002%
LT-3 1,000.000000 12.98002% 12.98002%
LT-4 1,000.000000 12.98002% 12.98002%
LT-5 1,000.000000 12.98002% 12.98002%
LT-6 1,000.000000 12.98002% 12.98002%
LT-A 1,260.435979 12.98002% 12.98002%
LT-M 1,793.691736 12.98002% 12.98002%
RL 0.000000 0.000000% 0.000000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: July 30, 1997 Irvine, CA 92714
Distribution Date: August 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
UPPER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
A-1 47,800,000.00 39,435,835.81 203,751.91 2,468,601.64
A-2 29,500,000.00 29,500,000.00 164,954.17 0.00
A-3 23,200,000.00 23,200,000.00 133,593.33 0.00
A-4 50,600,000.00 50,600,000.00 301,491.67 0.00
A-5 11,500,000.00 11,500,000.00 70,820.83 0.00
A-6 37,400,000.00 37,400,000.00 236,555.00 0.00
B 4,769,880.27 10,227,653.75 0.00 0.00
RU 0.00 0.00 0.00 0.00
Totals 204,769,880.27 201,863,507.56 1,111,166.91 2,468,601.64
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
A-1 2,672,353.55 0.00 0.00 36,967,252.17
A-2 164,954.17 0.00 0.00 29,500,000.00
A-3 133,593.33 0.00 0.00 23,200,000.00
A-4 301,491.67 0.00 0.00 50,600,000.00
A-5 70,820.83 0.00 0.00 11,500,000.00
A-6 236,555.00 0.00 0.00 37,400,000.00
B 0.00 0.00 1,066,032.31 6,184,253.68
RU 0.00 0.00 0.00 0.00
Totals 3,579,768.55 0.00 1,066,032.31 200,460,938.23
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
A-1 126342GH1 825.017962 4.262592 51.644386 55.906978
A-2 126342GJ7 1,000.000000 5.591667 0.000000 5.591667
A-3 126342GK4 1,000.000000 5.758333 0.000000 5.758333
A-4 126342GL2 1,000.000000 5.958333 0.000000 5.958333
A-5 126342GM0 1,000.000000 6.158333 0.000000 6.158333
A-6 126342GN8 1,000.000000 6.325000 0.000000 6.325000
B 2,144.216033 0.000000 0.000000 0.000000
RU 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
A-1 773.373476 6.20000% 6.20000%
A-2 1,000.000000 6.71000% 6.71000%
A-3 1,000.000000 6.91000% 6.91000%
A-4 1,000.000000 7.15000% 7.15000%
A-5 1,000.000000 7.39000% 7.39000%
A-6 1,000.000000 7.59000% 7.59000%
B 2,367.708500 0.00000% 0.00000%
RU 0.000000 0.00000% 0.00000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: July 30, 1997 Irvine, CA 92714
Distribution Date: August 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: August 25, 1997
DELINQUENT LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE NA 1,264,152.19 746,630.61 1,018,491.86
PERCENTAGE OF POOL BAL. NA 0.6308% 0.3726% 0.5082%
NUMBER OF LOANS NA 37 21 28
PERCENTAGE OF LOANS NA 0.6586% 0.3738% 0.4984%
DELINQUENT LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 3,029,274.66
PERCENTAGE OF POOL BAL. 1.5116%
NUMBER OF LOANS 86
PERCENTAGE OF LOANS 1.5308%
BANKRUPTCY LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 428,391.28 63,812.75 161,078.45 342,172.49
PERCENTAGE OF POOL BAL. 0.2138% 0.0318% 0.0804% 0.1707%
NUMBER OF LOANS 15 2 4 9
PERCENTAGE OF LOANS 0.2670% 0.0356% 0.0712% 0.1602%
BANKRUPTCY LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 995,454.97
PERCENTAGE OF POOL BAL. 0.4967%
NUMBER OF LOANS 30
PERCENTAGE OF LOANS 0.5340%
FORECLOSURE LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
FORECLOSURE LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.0000%
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.0000%
REO PROPERTY 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
REO PROPERTY
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.0000%
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.0000%
BOOK VALUE OF LOANS IN REO: 0.00
ADDITIONAL INFORMATION CONCERNING ANY REO PROPERTY: (SEE ATTACHED, IF ANY)
WEIGHTED AVERTAGE MORTGAGE INTEREST RATE: 13.941520%
WEIGHTED AVERAGE NET MORTGAGE INTEREST RATE: 12.980020%
WEIGHTED AVERAGE REMAINING TERM TO MATURITY: 176
PRIOR NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,649
NUMBER OF SUBSEQUENT MORTGAGE LOANS ADDED TO THE POOL: 0
CURRENT NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,618
PRIOR AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 201,863,507.56
SUBSEQUENT MORTGAGE LOANS ADDED TO POOL PRINCIPAL BALANCE: 0.00
CURRENT AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 200,404,313.35
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: August 25, 1997
PRINCIPAL REMITTANCE AMOUNTS:
SCHEDULED PRINCIPAL: 361,781.70
CURTAILMENTS: 93,218.05
PREPAYMENTS IN FULL: 947,569.58
NET LIQUIDATION PROCEEDS 0.00
INSURANCE PRINCIPAL PROCEEDS: 0.00
RELEASED MORTGAGED PROPERTY PROCEEDS: 0.00
REPURCHASED PRINCIPAL AMOUNTS: 0.00
OVERCOLLATERALIZATION INCREASE AMOUNT: 1,066,032.31
SUBSTITUTION ADJUSTMENTS: 0.00
PRE-FUNDED AMOUNTS DISTRIBUTED AS PRINCIPAL: 0.00
TOTAL PRINCIPAL DISTRIBUTED: 2,468,601.64
INSURED PAYMENT INCLUDED IN CURRENT DISTRIBUTION
TO CLASS A CERTIFICATEHOLDERS: 0.00
REIMBURSEMENT AMOUNT PAID TO CERTIFICATE INSURER
FOR CURRENT DISTRIBUTION: 0.00
REQUIRED OVERCOLLATERALIZATION LEVEL AS OF THE
CURRENT REMITTANCE DATE: 19,200,000.00
OVERCOLLATERALIZATION AMOUNT AS OF THE CURRENT
DISTRIBUTION DATE: 11,237,061.18
TOTAL REPURCHASE PRICE OF ANY REPURCHASED LOANS
AS OF THE CURRENT DISTRIBUTION DATE: 0.00
CURRENT REALIZED LOSSES FOR THE RELATED COLLECTION PERIOD: 56,624.88
CURRENT CUMULATIVE REALIZED LOSSES TO DATE: 56,624.88
REMAINING PRE-FUNDED AMOUNT: 0.00
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
LOWER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
LT-1 478,000.00 394,358.52 4,265.65 24,686.01
LT-2 295,000.00 295,000.00 3,190.92 0.00
LT-3 232,000.00 232,000.00 2,509.47 0.00
LT-4 506,000.00 506,000.00 5,473.24 0.00
LT-5 115,000.00 115,000.00 1,243.92 0.00
LT-6 374,000.00 374,000.00 4,045.44 0.00
LT-A 155,816,106.79 197,826,237.43 2,139,823.77 1,374,517.95
LT-M 1,179,920.55 2,120,911.61 12,280.91 14,025.69
RL 0.00 0.00 0.00 0.00
Totals 158,996,027.34 201,863,507.56 2,172,833.32 1,413,229.65
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
LT-1 28,951.66 0.00 0.00 369,672.51
LT-2 3,190.92 0.00 0.00 295,000.00
LT-3 2,509.47 0.00 0.00 232,000.00
LT-4 5,473.24 0.00 0.00 506,000.00
LT-5 1,243.92 0.00 0.00 115,000.00
LT-6 4,045.44 0.00 0.00 374,000.00
LT-A 3,514,341.72 55,492.38 0.00 196,396,227.10
LT-M 26,306.60 1,132.50 10,660.32 2,116,413.74
RL 0.00 0.00 0.00 0.00
Totals 3,586,062.97 56,624.88 10,660.32 200,404,313.35
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
LT-1 825.017824 8.923954 51.644372 60.568326
LT-2 1,000.000000 10.816678 0.000000 10.816678
LT-3 1,000.000000 10.816681 0.000000 10.816681
LT-4 1,000.000000 10.816680 0.000000 10.816680
LT-5 1,000.000000 10.816696 0.000000 10.816696
LT-6 1,000.000000 10.816684 0.000000 10.816684
LT-A 1,269.613530 13.733008 8.821411 22.554419
LT-M 1,797.503747 10.408252 11.886978 22.295230
RL 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
LT-1 773.373452 12.98002% 12.98002%
LT-2 1,000.000000 12.98002% 12.98002%
LT-3 1,000.000000 12.98002% 12.98002%
LT-4 1,000.000000 12.98002% 12.98002%
LT-5 1,000.000000 12.98002% 12.98002%
LT-6 1,000.000000 12.98002% 12.98002%
LT-A 1,260.435979 12.98002% 12.98002%
LT-M 1,793.691736 12.98002% 12.98002%
RL 0.000000 0.000000% 0.000000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: July 30, 1997 Irvine, CA 92714
Distribution Date: August 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
UPPER-TIER REMIC
STATEMENT TO CERTIFICATEHOLDERS
DISTRIBUTIONS IN DOLLARS
PRIOR
ORIGINAL PRINCIPAL
CLASS FACE VALUE BALANCE INTEREST PRINCIPAL
A-1 47,800,000.00 39,435,835.81 203,751.91 2,468,601.64
A-2 29,500,000.00 29,500,000.00 164,954.17 0.00
A-3 23,200,000.00 23,200,000.00 133,593.33 0.00
A-4 50,600,000.00 50,600,000.00 301,491.67 0.00
A-5 11,500,000.00 11,500,000.00 70,820.83 0.00
A-6 37,400,000.00 37,400,000.00 236,555.00 0.00
B 4,769,880.27 10,227,653.75 0.00 0.00
RU 0.00 0.00 0.00 0.00
Totals 204,769,880.27 201,863,507.56 1,111,166.91 2,468,601.64
TOTAL REALIZED DEFERRED CURRENT
LOSSES INTEREST PRINCIPAL
BALANCE
A-1 2,672,353.55 0.00 0.00 36,967,252.17
A-2 164,954.17 0.00 0.00 29,500,000.00
A-3 133,593.33 0.00 0.00 23,200,000.00
A-4 301,491.67 0.00 0.00 50,600,000.00
A-5 70,820.83 0.00 0.00 11,500,000.00
A-6 236,555.00 0.00 0.00 37,400,000.00
B 0.00 0.00 1,066,032.31 6,184,253.68
RU 0.00 0.00 0.00 0.00
Totals 3,579,768.55 0.00 1,066,032.31 200,460,938.23
FACTOR INFORMATION PER $1000 OF ORIGINAL FACE
PRIOR
PRINCIPAL
CLASS CUSIP BALANCE INTEREST PRINCIPAL TOTAL
A-1 126342GH1 825.017962 4.262592 51.644386 55.906978
A-2 126342GJ7 1,000.000000 5.591667 0.000000 5.591667
A-3 126342GK4 1,000.000000 5.758333 0.000000 5.758333
A-4 126342GL2 1,000.000000 5.958333 0.000000 5.958333
A-5 126342GM0 1,000.000000 6.158333 0.000000 6.158333
A-6 126342GN8 1,000.000000 6.325000 0.000000 6.325000
B 2,144.216033 0.000000 0.000000 0.000000
RU 0.000000 0.000000 0.000000 0.000000
CURRENT PASS THROUGH
PRINCIPAL RATES
BALANCE CURRENT NEXT
A-1 773.373476 6.20000% 6.20000%
A-2 1,000.000000 6.71000% 6.71000%
A-3 1,000.000000 6.91000% 6.91000%
A-4 1,000.000000 7.15000% 7.15000%
A-5 1,000.000000 7.39000% 7.39000%
A-6 1,000.000000 7.59000% 7.59000%
B 2,367.708500 0.00000% 0.00000%
RU 0.000000 0.00000% 0.00000%
Seller: T.A.R. Preferred Mortgage Corp. Administrator: Toan Bui
Servicer: Advanta Mortgage Corp. USA Bankers Trust Company
Lead Underwriter: CS First Boston 3 Park Plaza
Record Date: July 30, 1997 Irvine, CA 92714
Distribution Date: August 25, 1997 Factor Information (800)735-7777
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: August 25, 1997
DELINQUENT LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE NA 1,264,152.19 746,630.61 1,018,491.86
PERCENTAGE OF POOL BAL. NA 0.6308% 0.3726% 0.5082%
NUMBER OF LOANS NA 37 21 28
PERCENTAGE OF LOANS NA 0.6586% 0.3738% 0.4984%
DELINQUENT LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 3,029,274.66
PERCENTAGE OF POOL BAL. 1.5116%
NUMBER OF LOANS 86
PERCENTAGE OF LOANS 1.5308%
BANKRUPTCY LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 428,391.28 63,812.75 161,078.45 342,172.49
PERCENTAGE OF POOL BAL. 0.2138% 0.0318% 0.0804% 0.1707%
NUMBER OF LOANS 15 2 4 9
PERCENTAGE OF LOANS 0.2670% 0.0356% 0.0712% 0.1602%
BANKRUPTCY LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 995,454.97
PERCENTAGE OF POOL BAL. 0.4967%
NUMBER OF LOANS 30
PERCENTAGE OF LOANS 0.5340%
FORECLOSURE LOAN 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
FORECLOSURE LOAN
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.0000%
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.0000%
REO PROPERTY 0 TO 29 30 TO 59 60 TO 89 90 PLUS
INFORMATION DAYS DAYS DAYS DAYS
PRINCIPAL BALANCE 0.00 0.00 0.00 0.00
PERCENTAGE OF POOL BAL. 0.0000% 0.0000% 0.0000% 0.0000%
NUMBER OF LOANS 0 0 0 0
PERCENTAGE OF LOANS 0.0000% 0.0000% 0.0000% 0.0000%
REO PROPERTY
INFORMATION TOTAL
PRINCIPAL BALANCE 0.00
PERCENTAGE OF POOL BAL. 0.0000%
NUMBER OF LOANS 0
PERCENTAGE OF LOANS 0.0000%
BOOK VALUE OF LOANS IN REO: 0.00
ADDITIONAL INFORMATION CONCERNING ANY REO PROPERTY: (SEE ATTACHED, IF ANY)
WEIGHTED AVERTAGE MORTGAGE INTEREST RATE: 13.941520%
WEIGHTED AVERAGE NET MORTGAGE INTEREST RATE: 12.980020%
WEIGHTED AVERAGE REMAINING TERM TO MATURITY: 176
PRIOR NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,649
NUMBER OF SUBSEQUENT MORTGAGE LOANS ADDED TO THE POOL: 0
CURRENT NUMBER OF MORTGAGE LOANS INCLUDED IN THE POOL: 5,618
PRIOR AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 201,863,507.56
SUBSEQUENT MORTGAGE LOANS ADDED TO POOL PRINCIPAL BALANCE: 0.00
CURRENT AGGREGATE PRINCIPAL BALANCE OF THE MORTGAGE LOANS: 200,404,313.35
CS FIRST BOSTON MORTGAGE SECURITIES CORP.
PREFERRED MORTGAGE ASSET-BACKED CERTIFICATES
SERIES 1997-1
STATEMENT TO CERTIFICATE HOLDERS
Distribution Date: August 25, 1997
PRINCIPAL REMITTANCE AMOUNTS:
SCHEDULED PRINCIPAL: 361,781.70
CURTAILMENTS: 93,218.05
PREPAYMENTS IN FULL: 947,569.58
NET LIQUIDATION PROCEEDS 0.00
INSURANCE PRINCIPAL PROCEEDS: 0.00
RELEASED MORTGAGED PROPERTY PROCEEDS: 0.00
REPURCHASED PRINCIPAL AMOUNTS: 0.00
OVERCOLLATERALIZATION INCREASE AMOUNT: 1,066,032.31
SUBSTITUTION ADJUSTMENTS: 0.00
PRE-FUNDED AMOUNTS DISTRIBUTED AS PRINCIPAL: 0.00
TOTAL PRINCIPAL DISTRIBUTED: 2,468,601.64
INSURED PAYMENT INCLUDED IN CURRENT DISTRIBUTION
TO CLASS A CERTIFICATEHOLDERS: 0.00
REIMBURSEMENT AMOUNT PAID TO CERTIFICATE INSURER
FOR CURRENT DISTRIBUTION: 0.00
REQUIRED OVERCOLLATERALIZATION LEVEL AS OF THE
CURRENT REMITTANCE DATE: 19,200,000.00
OVERCOLLATERALIZATION AMOUNT AS OF THE CURRENT
DISTRIBUTION DATE: 11,237,061.18
TOTAL REPURCHASE PRICE OF ANY REPURCHASED LOANS
AS OF THE CURRENT DISTRIBUTION DATE: 0.00
CURRENT REALIZED LOSSES FOR THE RELATED COLLECTION PERIOD: 56,624.88
CURRENT CUMULATIVE REALIZED LOSSES TO DATE: 56,624.88
REMAINING PRE-FUNDED AMOUNT: 0.00
