La. Civ. Code art. 1305
Current with operative changes from the 2024 Third Special Legislative Session
When one of the heirs has enjoyed the whole or part of the succession separately, or all the coheirs have possessed separately each a portion of the hereditary effects, he or they who have thus separately possessed, can successfully oppose the suit for a partition of the effects of the succession, if their possession has continued thirty years without interruption.
La. C.C. § 1305