General Affidavits are written statements of fact used to support your case or verify facts that are sworn to be true in front of a notary public. Elevate your credibility in legal matters and business transactions using a Texas general affidavit form.Craft a compelling statement of truth. My name is___________________________________________. I am of sound mind, 18 years of age or older, and competent to give this affidavit. In general, Texas has very few official legal forms. This research guide includes information and resources on some of the most common affidavits and declarations related to family law. Both affidavits and.