La. Civ. Code art. 3170
Current with changes from the 2024 legislative session effective on or before 7/1/2024, from Acts 1-3, 6-671
A pledge of the lessor's rights in the lease of an immovable and its rents may be established in an act of mortgage of the immovable. In that event, the pledge is given the effect of recordation for so long as the mortgage is given that effect and is extinguished when the mortgage is extinguished.
La. C.C. § 3170