David W. Wilhelmsen

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...

Joe Mais is an experienced trial lawyer who has tried more than 20 jury trials, bench trials and arbitrations. He also has served as lead counsel in many significant matters that were successfully resolved before trial. He has served as lead counsel in a wide range of matters including multiple securities, intellectual property, and consumer actions, as well as contract, business tort and real estate litigation. Joe is currently ranked by Chambers as an Arizona Band One litigator, and describ...

Jason Moyes’ practice is focused in the area of natural resource law. Included in his practice is the representation and defense of agricultural irrigation and electrical districts, small utilities, real estate developers, and other special taxing districts. He is experienced in water rights, electricity, solar, gas-fired and hydroelectric power generation, land use planning, and other permitting matters. Jason has successfully represented clients on numerous state and federal regulator...

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...

Mr. Delo practices primarily in the areas of medical malpractice defense, healthcare law, personal injury, and commercial litigation. He focuses his practice on the defense of physicians in medical malpractice cases on behalf of the largest medical liability insurer in Arizona and other carriers. Mr. Delo has significant experience in litigating healthcare coverage issues and has represented health maintenance organizations (HMOs) in numerous matters. He also represents physicians in discipli...

Overview Brandon Curtis practices in the areas of environmental and natural resource law. Mr. Curtis represents clients in the steel manufacturing, mining, and electric utility industries. Mr. Curtis's practice focuses on assisting clients through the full breadth of the air permitting process. Mr. Curtis's practice includes developing emission inventories, compiling applications, negotiating with the regulatory body, responding to public comment, and litigating permitting decisions before ad...

Gary Fletcher is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law and Trusts and Estates. Gary, 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 Gary is held by other top lawyers in the same geographic and legal practice area.

Ashley L. Case is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Ashley L., 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 Ashley L. is held by other top lawyers in the same geographic and legal practice area.

Mr. Cashdan represents clients in a broad range of commercial real estate transactions for both unimproved real property and improved real property, including shopping centers, office buildings, hotels, industrial parks, mixed use developments and master planned communities). Mr. Cashdan’s practice includes acquisitions, dispositions, development, financing/commercial lending, joint ventures, synthetic lease and sale-leaseback transactions, commercial leasing, rights-of-way and easement...

Shareholder Certified Specialist in Real Estate Law, Arizona Board of Legal Specialization Ed, who has practiced law for 45 years, is a peer review rated AV® Preeminent attorney who has been recognized by Best Lawyers in America every year since 2003 and was named the 2014 Best Lawyers "Lawyer of the Year" Phoenix in Land Use and Zoning Law. Ed has been selected by Super Lawyers of the Southwest every year since its inception in 2007, Arizona’s Finest Lawyers from 2008-2025, Chamber...