David E. Weiss, Jr.

Mary has commanded a robust career guiding legal issues that have left lasting impacts on government authority, election campaign finance and election law. As a former Solicitor General for the State of Arizona, she has a mastery of public law issues and has led an extensive set of complex, high-profile lawsuits and appeals in state and federal courts. Her experience handling this complex litigation positions her well to get to the core of the issue in a dispute and provide critical strategic...

Shanks Leonhardt is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law and Litigation - Insurance. Shanks, who practices law in Phoenix, Arizona, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Shanks is held by other top lawyers in the same geographic and legal practice area.

Known for his extensive work in corporate and business law, Michael Aguirre excels at helping organizations of all sizes and maturities address complex legal and business challenges. Michael has wide-ranging experience in corporate finance, mergers and acquisitions, and general business transactions, as well as counseling executive teams and boards on corporate governance and various corporate matters. He has also advised clients in complex state, federal, and local regulatory environments, i...

Ms. Villanueva is an attorney in the firm’s Intellectual Property Department. She practices in the areas of domestic and international trademark and copyright prosecution, licensing and enforcement. Ms. Villanueva assists clients with brand development and with identifying various protectable aspects of the clients’ products, services and concepts. She also helps clients with clearing all aspects of advertising, promotional and marketing materials and products, including trademark...

Brett B. Larsen is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Brett B., who practices law in Phoenix, Arizona, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Brett B. is held by other top lawyers in the same geographic and legal practice area.

Katherine Benveniste is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Katherine, who practices law in Phoenix, Arizona, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Katherine is held by other top lawyers in the same geographic and legal practice area.

Jimmy Cool is a counselor and trial attorney whose practice emphasizes civil and commercial litigation. Jimmy's value in guiding his clients to successful outcomes is supported by his experience in a broad range of civil litigation encompassing public labor law, catastrophic personal injury, professional regulatory action, bet-the-company commercial litigation, and high-profile litigation in the public interest. He also serves as a neutral mediator in helping to resolve tort litigation and bu...

P. Derek Petersen is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Environmental. P. Derek, who practices law in Phoenix, Arizona, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which P. Derek is held by other top lawyers in the same geographic and legal practice area.

Jennifer Cranston (formerly Ratcliff) focuses her practice in three primary areas: real estate disputes involving condemnation and valuation issues; insurance coverage analysis and bad faith litigation; and public utility regulation. Jennifer’s objective is to provide sound legal advice, exceptional service, and cost-effective resolution for all her clients. She has successfully negotiated favorable settlements, as well as prevailed for clients at hearings, in arbitrations, at trial, an...

Mr. Clees represents employers throughout the United States in discrimination and wrongful discharge cases and labor relations. He also counsels clients on a wide array of state, federal and tribal compliance laws. Mr. Clees has been singled out by Chambers USA America’s Leading Lawyers as one of the top labor and employment law attorneys in the country for many years in a row and as a Chambers USA Top Leader in his Field. He has been applauded for his “integrity and common sense&...