N.M. Code R. § 8.26.3.15
C. A petition for adoption may be filed in New Mexico by any adult who meets one of the following criteria:
(1) Resident: The petitioner is a resident as defined in the act in Section 32A-5-3(S) NMSA 1978; or
(2) Non-resident: The petitioner may be a non-resident only if the child was placed by the department or a New Mexico licensed child placement agency and the adoptee is a resident of New Mexico or was born in New Mexico, but is less than six months of age.
E. A married individual may adopt without the individual’s spouse joining in the adoption if the non-joining spouse is the parent of the adoptee, or if the spouses are legally separated, or if the failure of the non-joining spouse is excused for reasonable cause as determined by the court.
[01/01/98; Recompiled 11/30/01]