Below you will find links to useful forms and documents for easy and convenient access. 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. How to fill out the Payoff Request Letter Templates? • The request help option allows the customer to fill out an electronic financial form which is then encrypted and sent to a Loan Counselor to review. Riverside Bank of Dublin is your local choice for community banking, with a fresh, new perspective on business and personal banking.