Court Rules Network • courtrules.net
Ariz. R. Sup. Ct. ER 3.7
Not legal advice. Verify against official sources before relying on this text in any legal matter.
• © 2026 Michigan Legal Publishing Ltd. All rights reserved.
ER 3.7 Lawyer as Witness
V. Regulation of the Practice of Law | D. Lawyer Obligations | Rule 42. Arizona Rules of Professional Conduct | Advocate
Rule Text
(a) A lawyer shall not act as advocate at a trial in which the lawyer is likely to be a necessary witness unless:
(1) the testimony relates to an uncontested issue;
(2) the testimony relates to the nature and value of legal services rendered in the case; or
(3) disqualification of the lawyer would work substantial hardship on the client.
(b) A lawyer may act as advocate in a trial in which another lawyer in the lawyer's firm is likely to be called as a witness unless precluded from doing so by ER 1.7 or ER 1.9.
Amendment history: Amended June 9, 2003, effective Dec. 1, 2003.