Ariz. R. Prof'l. Cond. 7.5
Comment to 2003 and 2012 Amendments
[1] [2012 Amendment] A firm may be designated by the names of all or some of its members, by the names of deceased or retired members where there has been a continuing succession in the firm's identity, or by a trade name such as the "ABC Legal Clinic." A lawyer or law firm may also be designated by a distinctive website address or comparable professional designation that complies with ER 7.1.
[2] [2003 Amendment] With regard to paragraph (d), lawyers sharing office facilities, but who are not in fact associated with each other in a law firm, may not denominate themselves as, for example, "Smith and Jones," for that title suggests that they are practicing law together in a firm.
[3] [2003 Amendment] "Of counsel" designation may be used to state or imply a relationship between lawyers only if the relationship is close, personal, continuous, and regular.
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