It typically details the principal balance, interest due as of that date, per diem, any late fees, etc. By including a per diem amount in the letter, the parties will not have to execute another payoff letter if the termination date.The first step is to get in touch with your lender or loan servicer. You can find their contact information on your monthly statements. The repayment terms are stated in full in the Subsidy Mortgage and Subsidy Note. Please complete all applicable fields below. That is new information - you did not state it was a pre-foreclosure payoff. Calculate your per diem allowance for your trip. Simply enter your travel dates and details to find out your per diem allowance. The town's external audit firm, Melanson,.