The court has placed the most commonly used forms on line as a resource. Please be advised that the forms detailed below are intended to be a guide.An I130 affidavit is a written statement from friends, family members, or associates who can attest to the genuine nature of your marriage. They are a very loving and caring couple and will have a great family one day when they are united in the USA. A Marriage Affidavit is a sworn statement affirming the date and validity of a marriage. 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.