N.M. Stat. § 45-5B-105
Execution of power of attorney.
A power of attorney must be signed by the principal or in the principal's conscious
presence by another individual directed by the principal to sign the principal's name on
the power of attorney. A signature on a power of attorney is presumed to be genuine if
the principal acknowledges the signature before a notary public or other individual
authorized by law to take acknowledgments.