An affidavit of marriage is a legal document and a sworn statement submitted to the court or another institution, to verify that two people are married. These materials can only be used to file for a divorce if your spouse will consent to the divorce.In addition, marital property and alimony must not be issues. An affidavit of marriage is a legally binding document that proves a legal marriage exists between two people. An affidavit is a sworn statement that is in writing. Affidavits are usually used in a court or in negotiations. I verify that the statements made in this affidavit are true and correct. I understand that false statements herein are made subject to the penalties of 18 Pa. Title 23 Domestic Relations Part I. General Provisions Chapter 1. Preliminary Provisions § 101.