RFMSI SERIES 1999-S23 TRUST
ISSUER
RESIDENTIAL FUNDING MORTGAGE SECURITIES I, INC.
DEPOSITOR
RESIDENTIAL FUNDING CORPORATION
MASTER SERVICER
$340,382,604
Mortgage Pass-Through Certificates
Series 1999-S23
Supplement dated December 13, 1999
to
Prospectus Supplement dated November 23, 1999
to
Prospectus dated October 22, 1999
CAPITALIZED TERMS USED HEREIN AND NOT OTHERWISE DEFINED HEREIN HAVE THE MEANINGS
ASSIGNED IN THE PROSPECTUS SUPPLEMENT DATED NOVEMBER 23, 1999.
The numbers listed for the Class A-5 Certificates and Class A-10
Certificates in the table entitled "Percent of Initial Certificate Principal
Balance Outstanding at the Following Constant Percentages of the Prepayment
Assumption"at pages S-54 and S-55 of the prospectus supplement are replaced with
the following numbers:
LEHMAN BROTHERS PAINEWEBBER INCORPORATED
UNDERWRITERS
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<CAPTION>
PERCENT OF INITIAL CERTIFICATE PRINCIPAL BALANCE OUTSTANDING AT THE
FOLLOWING PERCENTAGES OF THE PREPAYMENT ASSUMPTION
Class A-5 Certificates Class A-10 Certificates
---------------------------------- -------------------------------------
DISTRIBUTION DATE 0% 150% 225% 350% 500% 0% 150% 225% 350% 500%
- ----------------- -- ---- ---- ---- ---- -- ---- ---- ---- ----
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Initial Percentage............... 100% 100 % 100% 100% 100% 100% 100% 100% 100% 100%
November 25, 2000................ 106 106 106 106 103 97 92 89 89 89
November 25, 2001................ 113 113 113 113 102 93 77 70 67 55
November 25, 2002................ 120 120 120 120 91 89 60 46 35 19
November 25, 2003................ 128 128 128 128 20 85 43 25 9 7
November 25, 2004................ 136 136 136 93 20 80 29 8 0 0
November 25, 2005................ 145 145 145 70 20 75 24 1 0 0
November 25, 2006................ 155 155 133 60 20 70 20 0 0 0
November 25, 2007................ 165 165 116 56 20 64 14 0 0 0
November 25, 2008................ 177 177 97 51 20 58 7 0 0 0
November 25, 2009................ 189 187 76 46 20 51 0 0 0 0
November 25, 2010................ 202 162 55 42 14 44 0 0 0 0
November 25, 2011................ 216 136 34 39 9 36 0 0 0 0
November 25, 2012................ 231 108 19 34 6 27 0 0 0 0
November 25, 2013................ 248 77 13 26 4 18 0 0 0 0
November 25, 2014................ 266 47 9 20 3 8 0 0 0 0
November 25, 2015................ 285 19 6 15 2 2 0 0 0 0
November 25, 2016................ 286 4 4 11 1 0 0 0 0 0
November 25, 2017................ 276 2 2 9 1 0 0 0 0 0
November 25, 2018................ 265 1 1 6 1 0 0 0 0 0
November 25, 2019................ 253 0 0 5 * 0 0 0 0 0
November 25, 2020................ 241 0 0 3 * 0 0 0 0 0
November 25, 2021................ 221 0 0 3 * 0 0 0 0 0
November 25, 2022................ 166 0 0 2 * 0 0 0 0 0
November 25, 2023................ 107 0 0 1 * 0 0 0 0 0
November 25, 2024................ 44 0 0 1 * 0 0 0 0 0
November 25, 2025................ 0 0 0 1 * 0 0 0 0 0
November 25, 2026................ 0 0 0 * * 0 0 0 0 0
November 25, 2027................ 0 0 0 * * 0 0 0 0 0
November 25, 2028................ 0 0 0 * * 0 0 0 0 0
November 25, 2029................ 0 0 0 0 0 0 0 0 0 0
Weighted Average Life (in years)** 22.9 13.5 10.4 9.2 5.0 9.5 4.2 2.9 2.5 2.2
</TABLE>
The number "4.1%" listed for the Class A-8 Certificates in the table
entitled "Pre-Tax Yield to Maturity of the Class A-8 Certificates at the
Following Percentages of PSA" at page S-56 of the prospectus supplement, under
"150%" PSA, is replaced with "4.7%".
This supplement may be used to offer or sell the certificates offered
hereby only if accompanied by the prospectus supplement and prospectus.
Dealers will be required to deliver a supplement, prospectus supplement
and prospectus when acting as underwriters of the certificates offered hereby
and with respect to their unsold allotments or subscriptions. In addition, all
dealers selling the offered certificates, whether or not participating in this
offering, may be required to deliver a supplement, prospectus supplement and
prospectus until March 13, 1999.
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