La. Code Civ. Proc. art. 3182
The court may remove any succession representative who is or has become disqualified, has become incapable of discharging the duties of his office, has mismanaged the estate, has failed to perform any duty imposed by law or by order of court, has ceased to be a domiciliary of the state without appointing an agent as provided in Article 3097(4), or has failed to give notice of his application for appointment when required under Article 3093.
The court on its own motion may, and on motion of any interested party shall, order the succession representative sought to be removed to show cause why he should not be removed from office. The removal of a succession representative from office does not invalidate any of his official acts performed prior to his removal.
La. C.P. § 3182