Check with the agency or board that licenses your profession to see if it requires you to form a professional LLC or if it prohibits you from forming a professional LLC. See A.R.S. §§ 29-841 through 29-847. The Arizona Corporation Commission cannot tell you whether you can or should form a professional LLC, because this issue may involve legal or tax advice, and Commission staff cannot give legal or tax advice to the public. A.R.S. §§ 29-841 through 29-847 apply to professional LLCs. Statutes are available on the Arizona Legislature’s website, www.azleg.gov, by following the link for Arizona Revised Statutes.