My primary business is public relations and concert promotion for
classical music artists in California. Two clients requested that I
negotiate the terms and conditions of their engagement contracts who
had no manager, which I did. I have negotiated approx. 20 contracts
thus far and received either a fifteen or twenty percent commission
for each.  I have not directly solicited engagements by calling
anyone: client jobs came as a result of my PR efforts (media
promotion), referrals, and friends
whom I thought would be interested in my clients. Question: (1) Do I
need to get an "agency" license to negotiate performance contracts for classical
music engagements? And (2) What constitutes formal work solicitation?
Lawyers routinely find work for entertainment clients in California
and do NOT have
agency licenses. Please advise. Thank you.

Are you a lawyer?  or is the last comment just a comment?