Payment Date: 04/25/00
------------------------------------------------------------
BANK OF AMERICA MORTGAGE SECURITIES, INC.
MORTGAGE PASS-THROUGH CERTIFICATES, Series 1999-4
Bank of America, FSB, Master Servicer
------------------------------------------------------------
<TABLE>
<CAPTION>
Class Information Current Payment Information
----------------------------------------------------------------------------------------------------------------------------------
Beginning Pass Thru Principal Interest Total Principal Interest
Type Class Code Name Cert. Bal. Rate Dist. Amt. Dist. Amt. Dist. Losses Shortfalls
----------------------------------------------------------------------------------------------------------------------------------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Senior A1 117,572,159.33 6.500000% 1,135,867.78 636,849.20 1,772,716.98 0.00 0.00
A2 185,348,774.92 6.500000% 1,495,770.61 1,003,972.53 2,499,743.14 0.00 0.00
A3 11,626,196.31 6.500000% 160,626.13 62,975.23 223,601.36 0.00 0.00
A4 6,457,000.00 6.500000% 0.00 34,975.42 34,975.42 0.00 0.00
A5 5,000,000.00 6.500000% 0.00 27,083.33 27,083.33 0.00 0.00
A6 19,715,000.00 6.500000% 0.00 106,789.58 106,789.58 0.00 0.00
A7 45,000,000.00 6.500000% 0.00 243,750.00 243,750.00 0.00 0.00
A8 10,000,000.00 6.250000% 0.00 52,083.33 52,083.33 0.00 0.00
A9 2,571,000.00 6.750000% 0.00 14,461.88 14,461.88 0.00 0.00
A10 2,350,000.00 6.750000% 0.00 13,218.75 13,218.75 0.00 0.00
A11 1,295,000.00 6.750000% 0.00 7,284.38 7,284.38 0.00 0.00
A12 1,377,000.00 6.750000% 0.00 7,745.63 7,745.63 0.00 0.00
A13 2,407,000.00 6.750000% 0.00 13,539.38 13,539.38 0.00 0.00
APO 557,441.65 0.000000% 18,825.68 0.00 18,825.68 0.00 0.00
Residual AR 0.00 6.500000% 0.00 0.00 0.00 0.00 0.00
----------------------------------------------------------------------------------------------------------------------------------
Subordinate B1 9,585,046.90 6.500000% 8,683.17 51,919.00 60,602.18 0.00 0.00
B2 3,344,266.06 6.500000% 3,029.60 18,114.77 21,144.37 0.00 0.00
B3 1,561,185.81 6.500000% 1,414.29 8,456.42 9,870.71 0.00 0.00
B4 1,561,185.81 6.500000% 1,414.29 8,456.42 9,870.71 0.00 0.00
B5 892,530.72 6.500000% 808.55 4,834.54 5,643.09 0.00 0.00
B6 892,052.76 6.500000% 808.12 4,831.95 5,640.07 0.00 0.00
----------------------------------------------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------------------------------------------
Totals - - 429,112,840.27 - 2,827,248.22 2,321,341.74 5,148,589.96 - -
----------------------------------------------------------------------------------------------------------------------------------
Class Information
--------------------------------------------------------------------------------
Ending Cert. Unpaid
Type Class Code Name Notional Bal. Interest
--------------------------------------------------------------------------------
Senior A1 116,436,291.55 0.00
A2 183,853,004.31 0.00
A3 11,465,570.18 0.00
A4 6,457,000.00 0.00
A5 5,000,000.00 0.00
A6 19,715,000.00 0.00
A7 45,000,000.00 0.00
A8 10,000,000.00 0.00
A9 2,571,000.00 0.00
A10 2,350,000.00 0.00
A11 1,295,000.00 0.00
A12 1,377,000.00 0.00
A13 2,407,000.00 0.00
APO 538,615.96 0.00
Residual AR 0.00 0.00
--------------------------------------------------------------------------------
Subordinate B1 9,576,363.73 0.00
B2 3,341,236.46 0.00
B3 1,559,771.52 0.00
B4 1,559,771.52 0.00
B5 891,722.17 0.00
B6 891,244.64 0.00
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
Totals - - 426,285,592.05 -
--------------------------------------------------------------------------------
</TABLE>
<PAGE>
Payment Date: 04/25/00
------------------------------------------------------------
BANK OF AMERICA MORTGAGE SECURITIES, INC.
MORTGAGE PASS-THROUGH CERTIFICATES, Series 1999-4
Bank of America, FSB, Master Servicer
------------------------------------------------------------
<TABLE>
<CAPTION>
Class Information Current Payment Information
Factors per $1,000
------------------------------------------------------------------------------------------------------------------------
Beginning Pass Thru CUSIP Principal Interest Ending Cert./
Type Class Code Name Cert. Bal.(Face) Rate Numbers Dist. Dist. Notional Bal.
------------------------------------------------------------------------------------------------------------------------
<S> <C> <C> <C> <C> <C> <C> <C> <C>
------------------------------------------------------------------------------------------------------------------------
Senior A1 117,572,159.33 6.500000% 060506CT7 9.014824 5.054359 924.097552
A2 185,348,774.92 6.500000% 060506CU4 7.614118 5.110653 935.891127
A3 11,626,196.31 6.500000% 060506CV2 12.531294 4.913031 894.489794
A4 6,457,000.00 6.500000% 060506CW0 0.000000 5.416667 1,000.000000
A5 5,000,000.00 6.500000% 060506CX8 0.000000 5.416667 1,000.000000
A6 19,715,000.00 6.500000% 060506CY6 0.000000 5.416667 1,000.000000
A7 45,000,000.00 6.500000% 060506CZ3 0.000000 5.416667 1,000.000000
A8 10,000,000.00 6.250000% 060506DA7 0.000000 5.208333 1,000.000000
A9 2,571,000.00 6.750000% 060506DB5 0.000000 5.625000 1,000.000000
A10 2,350,000.00 6.750000% 060506DC3 0.000000 5.625000 1,000.000000
A11 1,295,000.00 6.750000% 060506DD1 0.000000 5.625000 1,000.000000
A12 1,377,000.00 6.750000% 060506DE9 0.000000 5.625000 1,000.000000
A13 2,407,000.00 6.750000% 060506DF6 0.000000 5.625000 1,000.000000
APO 557,441.65 0.000000% 060506DG4 32.901561 0.000000 941.336785
Residual AR 0.00 6.500000% 060506DH2 0.000000 0.000000 0.000000
------------------------------------------------------------------------------------------------------------------------
Subordinate B1 9,585,046.90 6.500000% 060506DJ8 0.897393 5.365751 989.702742
B2 3,344,266.06 6.500000% 060506DK5 0.897393 5.365751 989.702742
B3 1,561,185.81 6.500000% 060506DL3 0.897393 5.365751 989.702742
B4 1,561,185.81 6.500000% 060506DM1 0.897393 5.365751 989.702742
B5 892,530.72 6.500000% 060506DN9 0.897393 5.365751 989.702742
B6 892,052.76 6.500000% 060506DP4 0.897393 5.365751 989.702742
------------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------------
Totals - - 429,112,840.27 - - - - -
------------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>
------------------------------------------------------------
BANK OF AMERICA MORTGAGE SECURITIES, INC.
MORTGAGE PASS-THROUGH CERTIFICATES, Series 1999-4
Bank of America, FSB, Master Servicer
------------------------------------------------------------
--------------------------------------------------------------------------------
COLLATERAL INFORMATION
--------------------------------------------------------------------------------
Total
-----
Prin balance 426,285,591.65 426,285,591.65
Loan count 1198 1198
Avg loan rate 7.064054% 7.06
Prepay amount 2,438,463.62 2,438,463.62
--------------------------------------------------------------------------------
FEES AND ADVANCES
--------------------------------------------------------------------------------
Total
-----
Master serv fees 198,873.76 198,873.76
Sub servicer fees 0.00 0.00
Trustee fees 1,430.38 1,430.38
Agg advances N/A N/A
Adv this period 0.00 0.00
--------------------------------------------------------------------------------
LOSSES & INSURANCE COVERAGES
--------------------------------------------------------------------------------
Total
-----
Realized losses 0.00 0.00
Cumulative losses 0.00 0.00
Coverage Amounts Total
---------------- -----
Bankruptcy 0.00 0.00
Fraud 4,500,148.00 4,500,148.00
Special Hazard 4,291,128.40 4,291,128.40
Aggregate Certificate Information
-----------------------------------------------------------------------------
Class Aggregate Aggregate Aggregate
Type Percentage Prepay Pct. End Cert. Bal.
-----------------------------------------------------------------------------
Senior 95.847064% 100.000000% 411,276,572.20
-----------------------------------------------------------------------------
Junior 4.152936% 0.000000% 17,820,110.04
-----------------------------------------------------------------------------
--------------------------------------------------------------------------------
DELINQUENCY INFORMATION
--------------------------------------------------------------------------------
Period Loan Count Ending Stated Balance
------ ---------- ---------------------
30 to 59 days 1 322,198.11
60 to 89 days 0 0.00
90 or more 0 0.00
Foreclosure 0 0.00
Totals: 1 322,198.11
--------------------------------------------------------------------------------
<PAGE>
--------------------------------------------------------------------------------
REO INFORMATION
--------------------------------------------------------------------------------
REO Date Loan Number Ending Stated Balance Book Value
-------- ----------- --------------------- ----------
N/A # 0 N/A
N/A # 0 N/A
N/A # 0 N/A
N/A # 0 N/A
N/A # 0 N/A
N/A # 0 N/A
N/A # 0 N/A
N/A # 0 N/A
Totals: 0 N/A
Current Total Outstanding Balance: 0.00
Current Total Outstanding Number of Loans: 0
<PAGE>
--------------------------------------------------------------------------------
OTHER INFORMATION
--------------------------------------------------------------------------------
Amount/Withdrawal Total/Ending Bal.
----------------- -----------------
Available remittance amount 5,148,589.96 5,148,589.96
Principal remittance amount 2,827,248.22 2,827,248.22
Interest remittance amount 2,321,341.74 2,321,341.74
