Transfer restrictions on immovable property require pre contract agreement and statutory statement filing to enable lawful conveyance. Transfers of immovable property in prescribed areas and above a prescribed value require an agreement entered into at least four months before the intended date; that agreement must be reduced to a written statement in the prescribed form with prescribed particulars and verification, and furnished to the appropriate authority. If the statement is defective, the authority may allow fifteen days or a further discretionary period for rectification; failure to remedy the defect renders the statement deemed never furnished.