N.M. Stat. § 45-3-306
Informal probate; notice requirements.
A. The applicant shall give notice as described by Section 45-1-401 NMSA 1978 of
his application for informal probate to any person demanding it pursuant to Section 45-
3-204 NMSA 1978 and to any personal representative of the decedent whose
appointment has not been terminated. No other notice of informal probate is required.
B. If an informal probate is granted, within 30 days thereafter the applicant shall give
written information of the probate to the heirs and devisees. The information shall
include the name and address of the applicant, the name and location of the court
granting the informal probate, and the date of the probate. The information shall be
delivered or sent by ordinary mail to each of the heirs and devisees whose address is
reasonably available to the applicant. No duty to give information is incurred under this
section if a personal representative is appointed who is required to give written
information pursuant to the provisions of Section 45-3-705 NMSA 1978. An applicant's
failure to give information as required by this section is a breach of the applicant's duty
to the heirs and devisees but does not affect the validity of the probate.