La. Code Civ. Proc. art. 81
Current with changes from the 2024 legislative session effective on or before 7/1/2024, from Acts 2,3, 6-535, and 580-647
Section 81 - Action involving successionWhen a succession has been opened judicially, until rendition of the judgment of possession, the following actions shall be brought in the court in which the succession proceeding is pending:
(1) A personal action by a creditor of the deceased; but an action brought against the deceased prior to his death may be prosecuted against his succession representative in the court in which it was brought;(2) An action to partition the succession;(3) An action to annul the testament of the deceased; and(4) An action to assert a right to the succession of the deceased, either under his testament or by effect of law.