If evidence of a claim is lost or destroyed, the claimant or the claimant's representative may make an affidavit to the fact of the loss or destruction. The affidavit must state:
(1) the amount, date, and nature of the claim;
(2) the due date of the claim;
(3) that the claim is just;
(4) that all legal offsets, payments, and credits known to the affiant have been allowed; and
(5) that the claimant is still the owner of the claim.
Official text of the Texas Estates Code as published by the Texas Legislative Council.