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. Get a very detailed list of legal terms and their definition.An affidavit is a written witness statement, signed under oath. Consent to Trial in 31 Days. Acknowledgement of Service. This article will serve as your compass, guiding you through the process of crafting a legally sound affidavit. Defendant is in possession as tenant of premises at the address in Fulton County as stated. 2. Affiant is the ( ) Owner. You are required to make to the Court, under oath, a FULL DISCLOSURE of your income, net worth and financial condition on this form. As specified on the Affidavit, you must also provide at least one "secure and verifiable" document with the completed Affidavit.