The option to acquire or allocate lapses if its beneficiary has not exercised it by notifying the surviving undivided co-owners and the heirs of the predeceased within one month of the day on which he was given formal notice to take a decision. This formal notice may not itself take place before the expiry of the period provided for in the title “Inheritances” for making an inventory and deliberating.
Where no provision has been made for an option to acquire or allocate, or where such an option has lapsed, the deceased’s share falls to his heirs or legatees. In such cases, the undivided co-ownership agreement will be deemed to have been entered into for an indefinite period from the opening of the succession.