La. Civ. Code art. 2369.4
Current with operative changes from the 2024 Third Special Legislative Session
A spouse may not alienate, encumber, or lease former community property or his undivided community interest in that property without the concurrence of the other spouse, except as provided in the following Articles. In the absence of such concurrence, the alienation, encumbrance, or lease is a relative nullity.
La. C.C. § 2369.4