N.M. Stat. § 40-3A-6
Current through 2024, ch. 69
After marriage, a premarital agreement may be amended or revoked only by a written agreement signed and acknowledged by the parties or by a consistent and mutual course of conduct, which evidences an amendment to or revocation of the premarital agreement. The amended agreement or the revocation is enforceable without consideration.
NMS § 40-3A-6