By including a per diem amount in the letter, the parties will not have to execute another payoff letter if the termination date. What is a Payoff Agreement?A payoff agreement is an informal contract in which a creditor agrees to accept the balance of a debt owed as full payment. Please include a per diem amount in the statement. Please email this information to as soon as possible. Gov for more information. The Payoff Amount and Per Diem Amount quoted herein are effective through December 31, 2020. That the Housing Authority of the City of San Diego ("Housing Authority") approve the mortgage loan payoff on the Maya Apartments. A number of NSFsupported Physics projects are continuing this historical tradition. Los Angeles, Woodland Hills.