Base Offering Circular – Multifamily 85 Structural Excess.......................  As of any Distribution Date, (i) in the case of a Trust REMIC that issues a Single REMIC Series, the excess of (a) any amounts that would have been received on the Trust Assets included in such Trust REMIC for the current period based on the Structural Excess Assumptions over (b) amounts then due on the related Regular Securities, the allocable portion of the Trustee Fee then due, and the allocable portion of any other unpaid related administrative expenses of the Trust and (ii) in the case of one or more Pooling REMICs that relate to a Double REMIC Series, the excess of (a) any amounts that would have been received on the portion of Trust Assets held by each such Pooling REMIC for the current period based on the Structural Excess Assumptions over (b) amounts then due on the related Pooling REMIC Regular Interests, and the allocable portion of the Trustee Fee then due, and the allocable portion of any other unpaid related administrative expenses of the Trust. Structural Excess Assumptions.............................. The assumptions in respect of a Distribution Date that (a) no defaults or late payments occur on the Trust Assets and (b) the amount of principal received on the Trust Assets in the Accrual Period related to a Distribution Date is equal to the aggregate amount of principal to be distributed to Holders on such Distribution Date. Structuring Range......................  With respect to a PAC Class or Component or group of PAC Classes or Components or a Scheduled Class or Component or group of Scheduled Classes or Components, the range of constant prepayment rates that was used to calculate its Scheduled Principal Balances. Structuring Rate ........................  With respect to a TAC Class or Component or group of TAC Classes or Components, the constant prepayment rate that was used to calculate its Scheduled Principal Balances. Supplemental Statement............  A statement posted on e-Access after a transaction closes showing any characteristics of the Securities that differ significantly from those shown in the Offering Circular. Support Class ............................  A Class that receives distributions of principal on any Distribution Date only if scheduled payments have been made on specified PAC, TAC and/or Scheduled Classes. TAC or Targeted Amortization Class.................... A Class that is designed to receive distributions of principal using a predetermined schedule derived by assuming a single constant prepayment rate for the underlying Mortgage Loans.