Montana Title 72. Estates, Trusts, and Fiduciary Relationships § 72-3-316. Will from place where probate unprovided for

A will from a place which does not provide for probate of a will after death may be proved for probate in this state by a duly authenticated certificate of its legal custodian that the copy introduced is a true copy and that the will has become effective under the law of the other place.