Affidavit of Heirship to identify heirs of a deceased home owner. Your application must also be filled out completely, including signed and notarized with two disinterested witnesses.Before me, a notary public, on this day personally appeared. After you have filled out section K of the form completely, figure out the heirs and list them in section L of the form. A Texas Affidavit of Heirship is a sworn statement filed in the county property records which identifies the names of the heirs of a deceased property owner.