Payment Date: 06/25/00
------------------------------------------------------------
BA MORTGAGE SECURITIES, INC.
Mortgage Pass-Through Certificates, Series 1998-7
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 A-1 60,945,304.82 6.250000% 712,285.12 317,423.46 1,029,708.58 0.00 0.00
A-2 141,325,029.34 6.250000% 1,361,510.79 736,067.86 2,097,578.65 0.00 0.00
A-3 52,292,591.26 6.250000% 406,999.11 272,357.25 679,356.36 0.00 0.00
A-4 19,122,490.13 6.250000% 281,006.43 99,596.30 380,602.74 0.00 0.00
A-5 12,990,000.00 6.250000% 0.00 67,656.25 67,656.25 0.00 0.00
A-6 17,177,000.00 6.250000% 0.00 89,463.54 89,463.54 0.00 0.00
A-7 40,000,000.00 6.250000% 0.00 208,333.33 208,333.33 0.00 0.00
Residual R 0.00 6.250000% 0.00 0.00 0.00 0.00 0.00
----------------------------------------------------------------------------------------------------------------------------------
Subordinate B-1 7,698,139.90 6.250000% 7,476.78 40,094.48 47,571.26 0.00 0.00
B-2 3,355,572.88 6.250000% 3,259.08 17,476.94 20,736.03 0.00 0.00
B-3 1,579,093.52 6.250000% 1,533.69 8,224.45 9,758.13 0.00 0.00
B-4 1,381,706.71 6.250000% 1,341.98 7,196.39 8,538.36 0.00 0.00
B-5 789,547.25 6.250000% 766.84 4,112.23 4,879.07 0.00 0.00
B-6 986,933.12 6.250000% 958.55 5,140.28 6,098.83 0.00 0.00
----------------------------------------------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------------------------------------------
Totals - - 359,643,408.94 - 2,777,138.37 1,873,142.75 4,650,281.12 - -
----------------------------------------------------------------------------------------------------------------------------------
Class Information
--------------------------------------------------------------------------------
Ending Cert. Unpaid
Type Class Code Name Notional Bal. Interest
--------------------------------------------------------------------------------
Senior A-1 60,233,019.71 0.00
A-2 139,963,518.56 0.00
A-3 51,885,592.15 0.00
A-4 18,841,483.70 0.00
A-5 12,990,000.00 0.00
A-6 17,177,000.00 0.00
A-7 40,000,000.00 0.00
Residual R 0.00 0.00
--------------------------------------------------------------------------------
Subordinate B-1 7,690,663.12 0.00
B-2 3,352,313.79 0.00
B-3 1,577,559.84 0.00
B-4 1,380,364.73 0.00
B-5 788,780.41 0.00
B-6 985,974.57 0.00
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
Totals - - 356,866,270.57 -
--------------------------------------------------------------------------------
</TABLE>
<PAGE>
Payment Date: 06/25/00
------------------------------------------------------------
BA MORTGAGE SECURITIES, INC.
Mortgage Pass-Through Certificates, Series 1998-7
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 A-1 60,945,304.82 6.250000% 055240LQ6 9.962030 4.439489 842.419856
A-2 141,325,029.34 6.250000% 055240LR4 8.430407 4.557696 866.647174
A-3 52,292,591.26 6.250000% 055240LS2 7.189527 4.811115 916.544641
A-4 19,122,490.13 6.250000% 055240LT0 11.240257 3.983852 753.659348
A-5 12,990,000.00 6.250000% 055240LU7 0.000000 5.208333 1,000.000000
A-6 17,177,000.00 6.250000% 055240LV5 0.000000 5.208333 1,000.000000
A-7 40,000,000.00 6.250000% 055240LW3 0.000000 5.208333 1,000.000000
Residual R 0.00 6.250000% 055240MA0 0.000000 0.000000 0.000000
------------------------------------------------------------------------------------------------------------------------
Subordinate B-1 7,698,139.90 6.250000% 055240LX1 0.956618 5.129894 983.982947
B-2 3,355,572.88 6.250000% 055240LY9 0.956618 5.129894 983.982947
B-3 1,579,093.52 6.250000% 055240LZ6 0.956618 5.129894 983.982947
B-4 1,381,706.71 6.250000% 055240MB8 0.956618 5.129894 983.982947
B-5 789,547.25 6.250000% 055240MC6 0.956618 5.129894 983.982947
B-6 986,933.12 6.250000% 055240MD4 0.956618 5.129894 983.982947
------------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------------
Totals - - 359,643,408.94 - - - - -
------------------------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>
------------------------------------------------------------
BA MORTGAGE SECURITIES, INC.
Mortgage Pass-Through Certificates, Series 1998-7
BANK OF AMERICA, FSB, MASTER SERVICER
------------------------------------------------------------
--------------------------------------------------------------------------------
COLLATERAL INFORMATION
--------------------------------------------------------------------------------
Total
-----
Prin balance 356,866,312.97 356,866,312.97
Loan count 1084 1084
Avg loan rate 7.141685% 7.14
Prepay amount 2,427,836.48 2,427,836.48
--------------------------------------------------------------------------------
FEES AND ADVANCES
--------------------------------------------------------------------------------
Total
-----
Master serv fees 262,435.38 262,435.38
Sub servicer fees 0.00 0.00
Trustee fees 1,348.66 1,348.66
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 0.00 0.00
Special Hazard 3,596,434.51 3,596,434.51
Aggregate Certificate Information
-----------------------------------------------------------------------------
Class Aggregate Aggregate Aggregate
Type Percentage Prepay Pct. End Cert. Bal.
-----------------------------------------------------------------------------
Senior 95.613341% 100.000000% 343,852,415.56
-----------------------------------------------------------------------------
Junior 4.386659% 0.000000% 15,775,656.46
-----------------------------------------------------------------------------
--------------------------------------------------------------------------------
DELINQUENCY INFORMATION
--------------------------------------------------------------------------------
Period Loan Count Ending Stated Balance
------ ---------- ---------------------
30 to 59 days 1 375,360.38
60 to 89 days 0 0.00
90 or more 2 520,906.60
Foreclosure 0 0.00
Totals: 3 896,266.98
--------------------------------------------------------------------------------
<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 4,650,281.12 4,650,281.12
Principal remittance amount 2,777,138.37 2,777,138.37
Interest remittance amount 1,873,142.75 1,873,142.75
