How do I fill out and turn in a General Affidavit? 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. 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. Elevate your credibility in legal matters and business transactions using a Texas general affidavit form. Craft a compelling statement of truth. How to fill out the Affidavit Sworn Statement - Texas Notarized Document? My name is___________________________________________. I am of sound mind, 18 years of age or older, and competent to give this affidavit. Specific affidavits are tailored for specific purposes, often requiring notarization and strict adherence to certain legal criteria.