Key facts: Louisiana's civil law succession framework governs mortgage inheritance; the thirty-day waiting period is mandatory under LA probate rules; estates under $50,000 may qualify for simplified succession procedures; mortgage obligations survive the decedent's death and remain enforceable against the property; heirs must formally accept or renounce the succession; creditors have specific claim-filing deadlines during the waiting period; and lenders retain foreclosure rights even if heirs renounce the estate.