Tom Chauncey II

Marvin is a partner with substantial experience representing clients in complex commercial litigation in state and federal courts in Arizona and Nevada. His practice primarily focuses on business disputes and litigation, including partnership disputes, real estate litigation, business torts, and fraud claims. Additionally, Marvin has extensive experience litigating debtor/creditor relationships, including prosecuting fraudulent transfer actions and obtaining prejudgment remedies; defending cl...

Colin Proksel focuses his practice on complex litigation across a wide set of industries. With over fifteen years of experience, he has a long track record of success representing clients in both state and federal court, alternative dispute resolution processes (including mediation and arbitration), and administrative proceedings. Colin graduated with distinction from the University of Iowa College of Law. Before joining Osborn Maledon, he served as a law clerk to the late Honorable Arthur L....

James is a first-chair trial lawyer with the insight from serving as an Arizona trial judge for more than seven years. He focuses his practice on trial and appellate representation in complex commercial litigation and elections disputes. He also serves as arbitrator, mediator, and special master. Before joining the firm, James served as a judge on the Arizona Superior Court, where he presided over hundreds of jury trials, bench trials, evidentiary hearings, and oral arguments. The civil trial...

Hannah concentrates on commercial litigation and has represented clients in a wide variety of areas such as breach of contract and fiduciary duties, fraud, business ownership disputes, construction litigation, and product liability. Prior to joining Gallagher & Kennedy, Hannah was a law clerk for Justice Robert M. Brutinel of the Arizona Supreme Court, where she worked on a multitude of legal issues, including issues concerning the Arizona and U.S. Constitutions, statutory interpretation ...

Prior to joining Gallagher & Kennedy, Mr. Clark served as a law clerk to the Honorable Mary M. Schroeder, Circuit Judge for the U.S. Court of Appeals, Ninth Circuit. Mr. Clark has also maintained an appellate practice. Prior to focusing his practice on plaintiffs’ personal injury and wrongful death cases, he handled a wide-range of cases, including criminal defense, insurance defense and commercial litigation. His recent experience includes: Served as Co-Lead Counsel for over 70 vic...

Lee practices environmental law relating to water quality, water rights, environmental compliance auditing, solid and hazardous waste, mining and mined land reclamation and remediation, toxic substances and Superfund matters. With nearly 25 years experience, Lee has a nationally-recognized water quality practice and works closely with his clients on the federal, state and local levels to develop workable strategies to promote development and expansion of both industrial and mining operations....

Greg Davis is a top attorney recognized by Best Lawyers in the practice area(s) of Collaborative Law: Family Law and Family Law. Greg, 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 Greg is held by other top lawyers in the same geographic and legal practice area.

Dale Schian represents businesses and individuals in commercial creditor and debtor matters, emphasizing out-of-court workouts, restructurings, and Chapter 11 reorganizations. Over the years, Mr. Schian has represented clients in a wide variety of businesses, including manufacturing, retail, high-tech, agribusiness, commercial real estate, multi-family housing, and real estate development. He is a member of the American Bar Association's Business Law Section and serves on the ABA Law Practice...

Jon is a partner at O'Steen & Harrison, PLC. He joined the firm in 2005 and practices in the areas of personal injury, car accidents, contaminated food, legal malpractice, insurance bad faith, defective products and commercial litigation. He graduated from Occidental College in 2002 (B.A., Economics and Political Science) and the Arizona State University College of Law in 2005 (J.D., cum laude). He served as Senior Articles Editor of the Arizona State Law Journal and was a Willard H. Pedr...

Philip C. Gerard is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Family Law. Philip C., who practices law in Phoenix, Arizona, has been recognized since 1987. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Philip C. is held by other top lawyers in the same geographic and legal practice area.