La. Stat. tit. 10 § 7-506
Current with changes from the 2024 legislative session effective on or before 7/1/2024, from Acts 1-3, 6-671
The transferee of a negotiable tangible document of title has a specifically enforceable right to have its transferor supply any necessary endorsement, but the transfer becomes a negotiation only as of the time the endorsement is supplied.
La. R.S. § 10:7-506