La. Code Civ. Proc. art. 3008
If the security required by the court under Article 3007 is not furnished within the delay allowed, on ex parte motion of the creditor, the court shall render a judgment annulling the judgment of possession, directing the cancellation of all inscriptions of the registry thereof, ordering an administration of the succession, and ordering the parties sent into possession to surrender to the administrator to be appointed thereafter all of the property of the deceased which they have received, and which they have not alienated.
Conventional mortgages and other encumbrances placed by the heirs, legatees, or surviving spouse in community on property so surrendered, and recorded prior to the cancellation of the inscription of the registry of the judgment of possession, shall retain their initial force and effect despite the administration of the succession.
La. C.P. § 3008