By including a per diem amount in the letter, the parties will not have to execute another payoff letter if the termination date. A secured lender shall prepare and deliver a payoff demand statement to the person who has requested it within fourteen days after receipt of the demand.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. It's simple – log in and select the vehicle from your Snapshot, then choose Lease-End Options. Follow the instructions to view your buyout or return estimate. Find the answers to questions about your lease, MyAccount and more GM Financial related questions. Please include a per diem amount in the statement. Please email this information to as soon as possible. The document is a payoff statement for a vehicle loan, detailing the total payoff amount and deadlines.