N.M. Admin. Code § 16.61.16.8
A qualifying broker is responsible for all real estate activities within the brokerage. A qualifying broker may serve concurrently as a qualifying broker for more than one brokerage. A qualifying broker may by written agreement engage the services of associate brokers and qualifying brokers, provided that the terms of such agreements are consistent with the responsibilities of associate brokers and qualifying brokers as set forth in parts 16.61.16.9 NMAC and 16.61.17.9 NMAC. A qualifying broker may serve as qualifying broker and associate broker for different brokerages simultaneously provided that there are written agreements executed specifying the responsibilities and scope of authority that the broker has for each brokerage. For purposes of this section "broker" means any licensee in a brokerage who is not acting in the capacity of a supervising qualifying broker.
N.M. Admin. Code § 16.61.16.8