Payee's Phone Number. Have intended payee complete an Affidavit of Forgery.If a business, have the intended payee state that they are a representative of the business. INITIALS. Use this instruction for making, completing, or altering a written instrument, which is only one of the ways of committing forgery. With this fill-in-the-blanks legal template, non-lawyers can create their own affidavit of forgery. How to fill out the Washington State Affidavit of Loss Form Instructions? 1. Gather the required information, including license number and VIN. 2. This portion of the simple will-drafting instructions explains how to format the signature lines and affidavit of your simple will. Gov: Go to the official FTC website dedicated to identity theft. This affidavit is for victims of identity theft.