Christopher L. "Chris" Callahan

Wayne’s areas of practice are federal and state income and estate taxation; real estate (including 1031 exchange and reverse exchange); partnership, corporation and limited liability company formation and compliance; business planning; estate planning; agricultural compliance with federal and state programs; and water law. He began his legal career as associate counsel for the Department of Treasury, where he tried civil tax cases.

Karen represents health care systems, hospitals, clinics, and other providers in matters of quality management, medical staff credentialing and peer review, medical staff structures, bylaws and confidentiality, as well as National Practitioner Data Bank, state professional board, and other government reporting. She also regularly assists health care providers with state licensure and Medicare certification, survey compliance, Joint Commission accreditation, EMTALA compliance, patient consent,...

Kiersten A. Murphy is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Kiersten A., who practices law in Phoenix, Arizona, has been recognized since 2017. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kiersten A. 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...

Shawn Oller is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management, Labor Law - Management and Litigation - Labor and Employment. Shawn, who practices law in Phoenix, Arizona, has been recognized since 2015. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Shawn is held by other top lawyers in the same geographic and legal practice area.

John has extensive experience in complex commercial litigation, including handling numerous trials, hearings and other matters before state and federal courts in the areas of contracts, business torts, trade secrets, real estate, securities, intellectual property, partnership and products. He has represented large multi-national clients, as well as regional and local businesses and individuals in a variety of business disputes. In light of this diverse experience in litigating business issues...

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...

Joel Robbins is a trial lawyer based in Phoenix, Arizona with Robbins Curtin Millea & Showalter LLC. After graduating from the University of Arizona James E. Rogers College of Law in 1986, he began his legal career with a Phoenix law firm and has practiced continuously since that time. Since 1989, his work has focused on serious personal injury, wrongful death, and civil rights matters arising throughout Arizona. Joel has represented individuals and defendants in a wide range of cases, in...

Diane M. Johnsen is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice, Commercial Litigation and Environmental Law. Diane M., who practices law in Phoenix, Arizona, has been recognized since 2005. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Diane M. is held by other top lawyers in the same geographic and legal practice area.

Member of the firm in our Phoenix, Arizona office. Mr. Baxter’s practice focuses on Construction Law and Commercial & Business Litigation. Mr. Baxter negotiates and prepares construction contracts for general contractors and private and public owners, as well as preparing other commercial contract documents. In litigation, Mr. Baxter frequently represents general contractors and property owners and developers in a wide array of commercial construction disputes and also represents ho...