Please complete all fields. An affidavit is a sworn statement of fact that can be used in a variety of legal proceedings, from bankruptcy cases to family and civil litigation matters.Are you specifically looking for a lawyer who can review and proofread your small estate affidavit before you submit it to the court? Name Change of an Adult - Guided Form. This interview helps you fill out the forms you need to change an adult's name. This set provides coverage of every aspect of probate law and estate and trust administration in Texas. It includes sample forms and letters. 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. Complete, ready-to-be-signed legal documents.