Persons dealing with personal representative; protection.

A. A person who in good faith either assists a personal representative or deals with him for value is protected as if the personal representative properly exercised his power. The fact that a person knowingly deals with a personal representative does not alone require the person to inquire into the existence of a power or the propriety of its exercise. Except for restrictions on powers of supervised personal representatives which are endorsed on letters as provided in Section 3-504 [45-3-504 NMSA 1978], no provision in any will or order of court purporting to limit the power of a personal representative is effective except as to persons with actual knowledge thereof. A person is not bound to see to the proper application of estate assets paid or delivered to a personal representative. The protection expressed in this section extends to instances in which some procedural irregularity or jurisdictional defect occurred in proceedings leading to the issuance of letters, including a case in which the alleged decedent is found to be alive. B. The protection expressed in this section in [is] not by substitution for that provided by comparable provisions of the laws relating to commercial transactions and laws simplifying transfers of securities by fiduciaries.