Do you need a loan payoff request form? A payoff letter shows the remaining balance on your mortgage, including fees, interest, etc.Learn more about what a payoff quote is and how to request one. Edit, sign, and share payoff letter template online. No need to install software, just go to DocHub, and sign up instantly and for free. A mortgage payoff letter can come in two forms. One form tells borrowers the remaining principal amount and interest they have to pay to close out the loan. Submit a request to pay off your loan ; Fax 858.215. 3360 ; Mail Guild Mortgage Company P.O. Box 85046. Mail. For deposits, loan payments or payoffs, remit to: San Diego County Credit Union Attn: Deposits, Payments or Payoffs P.O. Box 269040.