RS 9:5552: Defenses to enforcement of a collateral mortgage

A. If the obligor of the written obligation that the collateral mortgage secures does not raise the following defenses or claim the extinction of the collateral mortgage, then the mortgagor may not raise as a defense to the enforcement or claim the extinction of the collateral mortgage for any cause, other than forged signatures, based on the invalidity or unenforceability of the written obligation, or the extinction of the written obligation.

B. If neither the obligor of the written obligation that the collateral mortgage secures nor the mortgagor raises the following defenses or claims the extinction of the collateral mortgage, then, as long as the effects of registry continue in accordance with Article 3369 of the Civil Code, third persons may not raise as a defense to the enforcement or claim the extinction of the collateral mortgage for any cause, other than forged signatures, based on the invalidity or unenforceability of the written obligation, or the extinction of the written obligation.