Appointment of a guardian ad litem shall be made by the court in which the suit is pending, or by the judge thereof in vacation, upon the written request and petition of a relative or friend of the incapacitated person. However, in the event no relative or friend of the incapacitated person makes application for the appointment of a guardian ad litem within twenty days after service of process upon the incapacitated person, then the court in which said action or proceeding is pending, may, upon the application of any other party to the action or proceeding, appoint some qualified person to act as guardian ad litem for the incapacitated person in said cause.
NMS § 38-4-15