Thanks everyone for your responses. I did a little digging and found the answer where Tom Nguyen pointed me. The AZ Revised Statutes 32.2121 states:
A. The provisions of this article do not apply to:
1. A natural person, a corporation through its officers, a partnership through
its partners or a limited liability company through its members or managers
that deals in selling, exchanging, purchasing, renting, leasing, managing or
pledging the person's or entity's own property, including cemetery property
and membership camping contracts, and that does not receive special
compensation for a sales transaction or does not receive special compensation
or other consideration including property management fees or consulting fees
for any property management services performed, if the majority of an
officer's, partner's, member's or manager's activities do not involve the acts
of a real estate broker, cemetery broker or membership camping broker as
defined in section 32-2101.
Turns out my colleague got bad information from a local lawyer.