An affidavit is a sworn statement a person makes before a notary or officer of the court outside of the court asserting that certain facts are true. Forms: Recording 72-Hour Waiver Form, Affidavit of Absent Application, Affidavit of Absent Application Instructions, Declaration of Domestic Partnership.A child support affidavit is a written statement or declaration that a person swears to under oath declaring their financial information. 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. Notarial Definitions​​ Affirmation: The act of affirming the truth of a document, not an oath. Texas laws governing probate are primarily in the Texas Estates Code. Sample – Travis County Discovery Log with comments. That amount in a default judgment proceeding.