Family Code, Art. 103

Upon the termination of the marriage by death, the community property shall be liquidated in the same proceeding for the settlement of the estate of the deceased. If no judicial settlement proceeding is instituted, the surviving spouse shall liquidate the community property either judicially or extra-judicially within six months from the death of the deceased spouse. If upon the lapse of the six months period, no liquidation is made, any disposition or encumbrance involving the community property of the terminated marriage shall be void. Should the surviving spouse contract a subsequent marriage without compliance with the foregoing requirements, a mandatory regime of complete separation of property shall govern the property relations of the subsequent marriage. (n)