Completing and signing Form I-864 makes you the sponsor. Much confusion surrounds the need to submit I751 affidavits and how to write them.We explain and provide an I-751 affidavit sample. How to fill out the Affidavit Sworn Statement - Texas Notarized Document? 1. Fill out the cause number and heading information. 2. I am ______ years of age and have personal knowledge of the facts stated herein and they are all true and correct. To start the declaration, the person should state their complete name and address, as well as their country of citizenship. Tax Code Section 152.101 provides a penalty to a person who signs a false statement. An offense under this section is a felony of the third degree. Non prosecution affidavits.