By including a per diem amount in the letter, the parties will not have to execute another payoff letter if the termination date. Please accept this as my authorization to issue a payoff statement to.Through an effective date of . Please provide payoff information for the above referenced mortgage. Also, please provide loan number and per diem interest. The Participation Application from Seller in which Seller seeks approval to participate in the Low Interest Rate Mortgage Program. (b). Searching for a fillable Mortgage Loan Payoff Letter Template? Use our easy editor for PDF files and fill this form out quickly. Per Diem: Occupational Therapist.