N.M. Stat. § 35-7-7
Magistrate administration; conflict of interest.
No magistrate shall, directly or indirectly:
A. buy or be interested in buying any evidence of indebtedness or cause of action
for the purpose of bringing any action before any court;
B. either before or after suit, lend or advance or procure to be lent or advanced any
money or other valuable thing to any person in consideration of, or as a reward or
inducement for, placing any cause of action for prosecution or collection in any court;
C. operate or be interested in a collection agency;
D. with or without suit, collect, attempt to collect or become interested in collecting
any claim where he received any commission, percentage, fee or charge other than
those allowed by law;
E. institute or influence any other person to institute any suit in any magistrate court;
F. publish advertising relating to his office;
G. operate or be interested in a bail or appeal bond business; or
H. serve as surety on any bond posted in any court.