Is it permissible to execute an oral will for one-third of the estate on the marital home?

If the father bequeaths a third of his estate—the marital apartment—to a non-heir, the will is valid and enforceable as long as it does not exceed one-third. However, if he bequeaths it to an heir, the will is not enforceable unless the other heirs agree. A verbal will is not proven by mere claim; rather, evidence must be presented, which is either two men, or a man and two women, or a man and the claimant's oath.