I am ______ years of age and have personal knowledge of the facts stated herein and they are all true and correct. 1. Download the form and save it on your device.I am over 18 years of age and I am otherwise fully competent to make this affidavit. 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. 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. In general, Texas has very few official legal forms. This is why you will not always find a free fill-in-the-blank form for your situation.