N.M. Stat. § 45-3-412
Formal testacy proceedings; effect of order; vacation.
A. Subject to appeal and subject to vacation as provided in this section and in
Section 45-3-413 NMSA 1978, a formal testacy order under Sections 45-3-409 through
45-3-411 NMSA 1978, including an order that the decedent left no valid will and
determining heirs, is final as to all persons with respect to all issues concerning the
decedent's estate that the court considered or might have considered incident to its
rendition relevant to the question of whether the decedent left a valid will and to the
determination of heirs, except that:
(1)
the court shall entertain a petition for modification or vacation of its order
and probate of another will of the decedent if it is shown that the proponents of the later-
offered will were unaware of:
(a) its existence at the time of the earlier proceeding; or
(b) the earlier proceeding and were given no notice thereof except by
publication;
(2)
if intestacy of all or part of the estate has been ordered, the determination
of heirs of the decedent may be reconsidered if it is shown that one or more persons
were omitted from the determination and it is also shown that the persons were:
(a) unaware of their relationship to the decedent;
(b) were unaware of his death; or
(c) were given no notice of any proceeding concerning his estate except by
publication;
(3)
a petition for vacation under either Paragraph (1) or (2) of this subsection
shall be filed prior to the earliest of the following time limits:
(a) if a personal representative has been appointed for the estate, the time of
entry of any order approving final distribution of the estate or, if the estate is closed by
statement, six months after the filing of the closing statement;
(b) whether or not a personal representative has been appointed for the
estate of the decedent, the time prescribed by Section 45-3-108 NMSA 1978 when it is
no longer possible to initiate an original proceeding to probate a will of the decedent; or
(c) twelve months after the entry of the order sought to be vacated;
(4)
the order originally rendered in the testacy proceeding may be modified or
vacated, if appropriate under the circumstances, by the order of probate of the later-
offered will or the order redetermining heirs; and
(5)
the finding of the fact of death is conclusive as to the alleged decedent
only if notice of the hearing on the petition in the formal testacy proceeding was sent by
registered or certified mail addressed to the alleged decedent at his last known address
and the court finds that a search under Subsection C of Section 45-3-403 NMSA 1978
was made.
B. If the alleged decedent is not dead, even if notice was sent and search was
made, he may recover estate assets in the hands of the personal representative. In
addition to any remedies available to the alleged decedent by reason of any fraud or
intentional wrongdoing, the alleged decedent may recover any estate or its proceeds
from distributees that is in their hands or the value of distributions received by them to
the extent that any recovery from distributees is equitable in view of all of the
circumstances.