Charles W. Wirken

Charles W. Wirken: Attorney with Gust Rosenfeld P.L.C. AV stamp icon
  • Attorney at Gust Rosenfeld P.L.C. (56 Attorneys)
  • One E. Washington Street, Suite 1600, Phoenix, AZ 85004-2553
    View Charles W. Wirken's office location
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Attorney Awards


Charles (Chas) Wirken’s extensive appellate experience coupled with his expertise has earned the respect of his peers and appellate judges, as indicated by his election as a Senior fellow in the American Academy of Appellate Lawyers, inclusion in Best Lawyers in America in the Appellate Law category, and listings in the Appellate practice category of Southwest Super Lawyers. Chas was named one of the Top 100 Lawyers in Arizona in 2018 and a Best Lawyers Lawyer of the Year in 2016 and 2018.

Having briefed and argued nearly 200 appeals involving a broad range of cases and issues in both state and federal appellate courts, Chas has become a valuable resource to trial lawyers inside and outside of Gust Rosenfeld. He has served as a judge pro tem of the Arizona Court of Appeals and co-founded the State Bar Appellate Practice Section. He regularly shares his knowledge with other lawyers as a faculty member of the State Bar’s Appellate Practice Institute.

In 2009, Chas successfully petitioned the United States Supreme Court to hear the case of United Student Aid Funds, Inc. vs. Espinosa. He was the primary draftsman of the briefs leading to a favorable decision that settled the procedural requirements for the discharge of student loan debt in bankruptcy cases. In 2017, he briefed and argued the case of Howell v. Howell at the high court.

The other focus of Chas’s practice is the resolution of business disputes. He has tried a wide variety of commercial disputes to judges and juries in state and federal courts. His national reputation for the litigation of cases involving franchises, dealers, distributors and licensors is reinforced by his listing in The Best Lawyers of America Franchising Law category. Since 1980, Chas has represented both franchisors and franchisees from various franchise systems, in contract, business tort, intellectual property and government regulation disputes typically encountered by such clients.

Chas brings to his advocacy the perspective of years of experience as a judge pro tem of the Maricopa County Superior court and as a former arbitrator for the American Arbitration Association. As President of the State Bar of Arizona, Chas re-established the Arizona College of Trial Advocacy, where he annually serves as a faculty member.

In 2013, Chas was elected to membership in The American Law Institute, the leading, independent organization in the United States producing scholarly work to clarify, modernize and otherwise improve the law. In recognition of his many contributions to the law and justice in Arizona, Chas was recently inducted into the Maricopa County Bar Association Hall of Fame.

Chas is AV Preeminent rated by Martindale-Hubbell, representing the highest rating in legal ability and ethical standards.


Mesa Judicial Advisory Board (member)
Mesa Rotary Club (former president; recipient 2018 Service Above Self Award)
Mesa United Way (former campaign co-chair)
Arizona Town Hall (delegate)

Litigation Counsel of America.

Areas of Practice (5)

  • Appellate Practice
  • Commercial Litigation
  • Franchise Litigation
  • Real Estate Litigation
  • Alternative Dispute Resolution

Education & Credentials

Contact Information:
602.257.7959  Phone
(602) 340-1538  Fax
University Attended:
University of Arizona, B.S., Business Administration, 1972
Law School Attended:
University of Arizona College of Law, J.D., 1975
Year of First Admission:
1980, U.S. Supreme Court and U.S. Court of Appeals, 9th Circuit; 1976, U.S. District Court for the District of Arizona; 2004, U.S. Court of Appeals, 10th Circuit; 1985, U.S. Court of Appeals for the Federal Circuit; 1975, Arizona


American Bar Association
House of Delegates, 2010-present
Member, Council of Appellate Lawyers
Member, Forum on Franchising

American Academy of Appellate Lawyers

American Law Institute

Arizona Court of Appeals (judge pro tem, 1984-85, 1992-94, 1998-99)

Maricopa County Superior Court (judge pro tem, 1986-present)

American Arbitration Association (Panel of Arbitrators, 1986-2005)

State Bar of Arizona
President, 2004-2005
Board of Governors, 1995-2006
Executive Council, Appellate Practice Section, 1995-2002
Chair, Trial Practice Section, 2001-2002
Chair, Civil Practice and Procedure Committee, 2006-2007; Member, 1977-2003 and 2006-present
Member, Client Protection Fund Board of Trustees, 2010-present
Chair, Discipline Oversight Committee, 2002-2004

Maricopa County Bar Association (President, 1989-1990)

East Valley Bar Association (President, 1979-1980)

Reported Cases:
REPRESENTATIVE MATTERS: Howell v. Howell, 137 S.Ct. 1400 (2017); Lazar v. Kroncke, 862 F. 3d 1186 (9th Cir. 2017); Price v. City of Mesa, 236 Ariz. 267, 339 P.3d 650 (App. 2014); Weitz Co., LLC v. Heth, 235 Ariz. 405, 333 P3d 23 (2014); In re Estate of Gardner, 230 Ariz. 329, 283 P.3d 676 (App. 2012); Sourcecorp, Inc. v. Norcutt, 229 Ariz. 270, 274 P.3d 1204 (2012); In re Estate of Olson, 223 Ariz. 441, 224 P.3d 938 (App. 2010); United Student Aid Funds, Inc. v. Espinosa, 559 U.S. 260 (2010); In re Hamm, 211 Ariz. 458, 123 P.3d 652 (2005); Pleak v. Entrada Prop. Owners' Ass'n, 207 Ariz. 418, 87 P.3d 831 (2004); Maricopa County v. Barfield, 206 Ariz. 109, 75 P.3d 714 (App. 2003); Mealey v. Arndt, 206 Ariz. 218, 76 P.3d 892 (App. 2003); White Mountain Apache Tribe v. Smith Plumbing Co., Inc., 856 F.2d 1301 (9th Cir. 1988); Henderson v. Duncan, 779 F.2d 1421, 3 Fed.R.Serv.3d 1547 (9th Cir. 1986); Smith Plumbing Co., Inc. v. Aetna Cas. & Sur. Co., 149 Ariz. 524, 720 P.2d 499 (1986); Campbell v. Westdahl, 148 Ariz. 432, 715 P.2d 288 (App. 1985); Birds Int'l Corp. v. Arizona Maint. Co., Inc., 135 Ariz. 545, 662 P.2d 1052 (App. 1983); Harris v. Arizona Bd. of Regents, 528 F. Supp. 987 (1981); Nelson v. Cannon, 126 Ariz. 381, 616 P.2d 56 (App. 1980); Matter of Chase's Estate, 125 Ariz. 270, 609 P.2d 85 (App. 1980)

Peer Reviews

A Martindale-Hubbell Peer Rating reflects a combination of achieving a Very High General Ethical Standards rating and a Legal Ability numerical rating.

*Peer Reviews provided before April 15, 2008 are not displayed.

Phoenix, Arizona

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