Louisiana Code of Civil Procedure Tit. III, Art. 3371. After homologation of final tableau of distribution

A. At any time after the homologation of the final tableau of distribution, a legatee or an heir may file a petition to be sent into possession, alleging the facts showing that he is a legatee or an heir. Upon the filing of such a petition, the court shall order the executor to show cause why the petitioner should not be sent into possession.

B. Evidence of the allegations in the petition for possession showing that the petitioner is a legatee or an heir shall be submitted to the court as provided by Articles 2821 through 2823.