Art. 2637.Evidence Which Need Not Be Authentic
Book V. Summary and Executory Proceedings · Title II. Executory Proceedings · Chapter 1. General Dispositions · Last amended 2015 · Last verified July 30, 2026
Full Text of Art. 2637
Amendment History
Amended by Acts 2015, No. 84, §1, eff. 8/1/2015. Amended by Acts 2014, No. 440, §3, eff. 7/1/2014. Acts 1983, No. 185, §1; Acts 1987, No. 408, §1; Acts 1989, No. 137, §18, eff. 9/1/1989; Acts 1989, No. 161, §1, eff. 6/22/1989.
Plain-English Summary
Not every fact behind an executory proceeding has to meet the authentic-evidence standard of Articles 2635 and 2636. Article 2637 carves out a list of facts that can instead be proved by a verified petition, a supplemental petition, or an affidavit — a sworn but non-notarized showing, lighter than an authentic act but still more than a bare, unverified allegation.
Paragraph A covers facts that tend to be procedural or evolve after the mortgage was signed: who the proper defendant is, whether an unrepresented defendant needs a court-appointed attorney, any agreement extending or modifying the obligation, written notice of default, a breach of a mortgage condition, advances made under a collateral mortgage note or a note for future advances, and obligations secured under the Uniform Commercial Code. None of these lend themselves to a fixed notarized document the way the original mortgage does, since they arise from events after the fact.
The remaining paragraphs extend the same approach to specific recurring situations: advances a mortgage secures for taxes, insurance, or repairs to the property; the actual amount of indebtedness under a collateral mortgage or a mortgage securing multiple or future debts, provable along with the underlying note attached as an exhibit; a financial institution's name change, merger, or similar reorganization; the name change or death of any party; and, where a copy or reproduction of the note is used under Article 2636 or Paragraph C, who the proper plaintiff is to enforce it.
The unifying idea is practical. Some facts cannot be captured in a notarized act signed at the time of the original mortgage, because they happen afterward or depend on circumstances that change over time. Article 2637 lets a verified pleading or affidavit fill that gap, so the authentic-evidence requirement does not stall a proceeding over facts no notarized document could have anticipated.
Frequently Asked Questions
Does every fact in an executory proceeding need authentic evidence?
No. Article 2637 lists specific facts, such as the proper defendant, notice of default, and advances made under the note, that may be proved by verified petition or affidavit instead.
How does a creditor prove a debtor defaulted or breached the mortgage?
By verified petition, supplemental petition, or affidavit. Article 2637(A) does not require notice of default or breach of a mortgage condition to be submitted in authentic form.
Can a financial institution's merger or name change be proved without a notarized document?
Yes. Article 2637(D) allows a name change, merger, purchase and assumption, or similar change to be proved by verified petition or by affidavit from an officer of the successor entity.
What if a party to the mortgage has died since it was signed?
Article 2637(E) lets the death of a party be proved by verified petition or affidavit, without requiring authentic-form evidence of it.