An heir who accepts purely and simply may no longer renounce the succession or accept it up to the amount of the net assets.
However, he may apply to be discharged in whole or in part from his obligation to a succession debt of which he had legitimate grounds for being unaware at the time of acceptance, where payment of that debt would have the effect of seriously impairing his personal assets.
The heir must bring the action within five months of the day on which he became aware of the existence and extent of the debt.