Use the sample I751 affidavit as an example. Remember that each letter is unique and should contain elements that are personal to your story.This packet explains the steps you need to take to serve the other party and what forms you must use. This document provides a sample affidavit that friends or family can use to write a letter of support for a Form I-751 petition. An I130 affidavit is a written statement from friends, family members, or associates who can attest to the genuine nature of your marriage. WARNING TO BOTH PARTIES: This Affidavit is an important document. You must fill out this Affidavit completely, and provide accurate information. I would like to add a Sworn affidavit attesting marriage from my family and friends. I am hoping to see samples if you have any, so I could lead a guide.