Certain  Characteristics  of  the  Ginnie  Mae  Multifamily  Certificates  and  the  Related Mortgage Loans Underlying the Group 1 Trust Assets: The Ginnie Mae Multifamily Certificates and the related Mortgage Loans will have the following characteristics, aggregated on the basis of the applicable FHA insurance program: Group 1 Trust Assets(1) FHA Insurance Program Principal Balance Number of Trust Assets Percent of Total Balance Weighted Average Mortgage Interest Rate Weighted Average Certificate Rate Weighted Average Original Term to Maturity(2)(3) (in months) Weighted Average Remaining Term to Maturity(2) (in months) Weighted Average Period from Issuance(3) (in months) Weighted Average Remaining Lockout Period (in months) Weighted Average Total Remaining Lockout and Prepayment Penalty Period (in months) 221(d)(4) $121,269,024 20 41.18% 5.933% 5.611% 476 463 13 14 104 207/223(f) 37,208,049 18 12.64 5.992 5.724 411 405 6 14 115 232/223(f) 27,428,616 5 9.31 6.127 5.863 415 412 3 12 119 223(f) 26,935,278 9 9.15 5.924 5.663 404 390 14 6 84 223(a)(7) 24,583,624 16 8.35 5.812 5.507 361 353 8 12 113 232 15,572,718 3 5.29 6.170 5.876 475 450 25 12 88 223(a)(7)/232 14,966,963 1 5.08 5.850 5.600 419 416 3 9 117 213 9,780,311 2 3.32 5.432 4.932 479 477 2 9 117 241 3,507,309 3 1.19 6.552 6.150 384 359 25 20 98 231 2,135,058 1 0.73 6.150 5.900 487 478 9 23 119 241(f) 1,927,411 2 0.65 8.989 8.739 480 334 146 0 0 221(d)(3)/223(a)(7) 1,823,754 1 0.62 5.640 5.140 360 359 1 12 120 241(f)/223(a)(7) 1,749,962 1 0.59 5.950 5.700 330 328 2 0 22 221(d)(4)/223(a)(7) 1,471,031 2 0.50 6.802 6.414 362 341 21 28 97 236 1,365,108 1 0.46 8.500 8.200 469 63 406 0 0 236/223(a)(7) 783,409 1 0.27 6.500 6.150 359 353 6 17 113 231/223(a)(7) 721,928 1 0.25 6.250 5.750 359 357 2 22 118 241(a) 575,342 2 0.20 8.000 7.750 185 84 101 13 13 223(f)/223(a)(7) 528,005 1 0.18 8.130 7.750 360 267 93 0 27 236/221(d)(4) 139,641 1 0.05 7.000 6.650 470 88 382 0 0 Total/Weighted Average: $294,472,543 91 100.00% 5.993% 5.689% 439 425 14 12 104 (1)  As of June 1, 2007 (the "Cut-off Date"); includes Ginnie Mae Multifamily Certificates added to pay the Trustee Fee. Some of the columns may not foot due to rounding. (2)  Based on the assumption that each Ginnie Mae Construction Loan Certificate will convert to a Ginnie Mae Project Loan Certificate. (3)  Based on the issue date of the related Ginnie Mae Multifamily Certificate. The information contained in the preceding chart has been collected and summarized by the Sponsor based on publicly available information, including the disclosure documents for the Ginnie Mae Multifamily Certificates. See "The Ginnie Mae Multifamily Certificates – The Mortgage Loans" and Exhibit A to this Supplement. See Exhibits B, C and D to this Supplement for certain information regarding the characteristics of the Mortgage Loans included in the Underlying Trusts in Security Group 2. Lockout Periods and Prepayment Penalties:    For Security Group 1, certain of the Mortgage Loans prohibit voluntary prepayments during specified lockout periods with remaining terms that  range  from  0  to  56  months.  The  Group  1  Mortgage  Loans  have  a  weighted  average remaining lockout period of approximately 12 months. For Security Group 2, certain of the Mortgage Loans prohibit voluntary prepayments during specified  lockout  periods  with  remaining  terms  that  range  from  0  to  76  months.  See  the Updated Exhibits A in Exhibit D for additional information with respect to remaining lockout periods. S-4