How do I fill out and turn in a General Affidavit? Discover a stepbystep guide to creating a general affidavit with Bryan Fagan, PLLC.Understand the legal requirements. Sworn to before me this ____ day of ______, 200__. X_____________________________________. (Notary Public or Commissioner of Deeds). For notaries commissioned or recommissioned on and after January 1, 2016, the seal must also contain the notary public's Secretary of State ID number. Step 1: Decide what the title of your affidavit will be. A properly completed, notarized general affidavit form can be useful in legal proceedings. Here's how to make sure your affidavit is valid in Texas. Name This document must be signed in the presence of a notary public'.