This is a sample Florida mortgage payoff authorization form and should not be used or relied upon for any real estate transaction. The mortgage payoff calculator helps you find out.Please prepare a payoff quote according to the following information. A mortgage lender might ask you to write a letter of explanation to better understand your finances when deciding whether to approve you for a loan. PRINT AND FILL OUT THIS FORM - Please complete all relevant sections of the Payoff. This mortgage payoff calculator helps evaluate how adding extra payments or bi-weekly payments can save on interest and shorten mortgage term. CG-7042 Credit Card Form.