George U. Winney III

Clark L. Derrick began his legal career in Phoenix in 1972 after having graduated, with distinction, from the University of Arizona, College of Law and entering into the practice with John J. Flynn and the firm of Flynn, Kimerer, Thinnes & Derrick. While a student at the University of Arizona, College of Law, Clark was Symposium Editor of the Arizona Law Review and was elected a member of the Order of the Coif. He received his undergraduate, Bachelor of Arts degree in 1968 from the Univer...

John Fitzpatrick is a senior partner with nearly three decades of legal experience. John's practice focuses on assisting people and financial institutions in inheritance disputes, commercial/business litigation and civil appellate advocacy. John's peer recognition includes election as a Fellow of the American College of Trust and Estate Counsel (ACTEC). He also enjoys a long-standing AV® Preeminent™ rating and is a Best Lawyers® "Lawyer of the Year" (Phoenix) Litigation - Trusts...

J. Gregory Cahill’s practice focuses primarily on complex construction litigation and support for residential and commercial developers and contractors. Mr. Cahill also practices in the areas of insurance litigation and coverage and commercial litigation. He represents builders and developers throughout Arizona, New Mexico, and California, including in State and Federal Court and in front of various administrative tribunals and regulatory bodies. He previously practiced in the areas of ...

T.J. Ryan's practice encompasses virtually all aspects of family estates, from estate and business planning, to probate and trust administration, to litigating contested estates – an area in which he has achieved a strong track record for positive results. His commitment to excellence in estate controversy and estate planning matters has earned his election as a Fellow of the American College of Trust and Estate Counsel (ACTEC). T.J. focuses his practice on personal and business plannin...

Since the beginning of his career, Geoff has built his reputation as a lawyer’s lawyer. He serves as Osborn Maledon’s General Counsel and represents fellow attorneys in all aspects of the practice of law. For the last 30 years, his practice has split between both litigation and preventative counsel, advising on a regular basis to clients about risk management, professional liability issues, legal malpractice, bar discipline, ethics, and law practice management issues. Geoff has be...

Mike is a trial lawyer, focusing on the litigation of disputes on behalf of individuals and businesses. With over twenty years of experience, Mike has represented individuals and companies of all sizes with integrity, common sense, and consistent success, earning the trust and loyalty of his clients and the respect of his peers. He has pursued and defended a broad spectrum of disputes, from small to complex, multi-million dollar claims.

Jon T. Neumann is a lawyer recognized by Best Lawyers in the practice area of Litigation - Insurance. Jon T. practices law in Phoenix, Arizona Best Lawyers has recognized Jon T. Neumann since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Jon T. Neumann is held by other lawyers.

Grace E. Rebling is a lawyer recognized by Best Lawyers in the practice area of Environmental Law. Grace E. practices law in Phoenix, Arizona Best Lawyers has recognized Grace E. Rebling since 2027. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Grace E. Rebling is held by other lawyers.

BETSY J. LAMM is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Betsy has been recognized by Best Lawyers since 2026. This recognition is based on an exhaustive peer-review survey. Betsy has practiced her entire career at Cohen Dowd Durchslag (CDD). She joined CDD in 2008, following a judicial clerkship for the Honorable Chief Justice Ruth V. McGregor of the Arizona Supreme Court. Betsy’s practice focuses on complex commercial litigation, inc...

Chad Campbell, a partner in the firm's Litigation practice, focuses on patent, intellectual property and other commercial litigation for technology companies.