Louisiana Civil Code Tit. II, Art. 531. Proof of ownership of immovable

One claiming the ownership of an immovable against another who has been in possession of the immovable for one year after having commenced possession in good faith and with just title or who has been in possession of the immovable for ten years shall prove that he has acquired ownership from a previous owner or by acquisitive prescription. In all other cases, he need only prove a better title.