1. Complete the Application: You have two options for filling out your application. The affidavit and claim form must be signed under oath in front of a notary public (you can find one at a bank) or the clerk of the court.I declare under penalty of perjury that the information I have provided in this affidavit is true and correct to the best of my knowledge. The Affidavit of Check Fraud form is used to make a legal claim about the wrongful use of a negotiable instrument. When. This article and video will show Notaries to fill out each part of a notarial certificate, and common mistakes to avoid. This Affidavit must be SIGNED and NOTARIZED. NOTARY PUBLIC INFORMATION: Notarized in the state of. And in the county of . Do I fill the Affidavit of Identity out before going to a notary? No. A notary expects to witness your signature.