William A. "Bill" Kastin

Shane Swindle, a partner in the firm's Litigation practice, focuses on commercial litigation, particularly environmental, contract and insurance coverage disputes. Most of Mr. Swindle’s time is devoted to his active litigation practice, but he also regularly advises clients on environmental, contract, and insurance coverage issues for business planning purposes.

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....

Kathi Sandweiss, a former award-winning television journalist, now enjoys a combined arbitration and appellate practice. She is a partner at Jaburg & Wilk, P.C., where she has practiced law over 30 years. Since 2016, Kathi has been an active commercial arbitrator on the roster of the American Arbitration Association. Her AAA cases have included complex asbestos trust claims, franchise agreements, service agreements, landlord/tenant disputes, emergency injunctive relief in a cannabis dispu...

Robert T. Sullivan is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Insurance Law, Litigation - Insurance and Personal Injury Litigation - Defendants. Robert T., 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 Robert T. is held by other top lawyers in the same geographic and legal practice area.

J.P. Harrington Bisceglia is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law and Litigation - Insurance. J.P. Harrington, who practices law in Phoenix, Arizona, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which J.P. Harrington is held by other top lawyers in the same geographic and legal practice area.

Colin was appointed a Judge of the Maricopa County Superior Court in 1990 after twelve years of practicing both civil and criminal trial law. During his 17 years as a Judge, he sat on assignments related to nearly every area of law including civil, criminal, juvenile, and family matters. He was Presiding Judge from 2000 to 2005. After his retirement from the Bench, Colin returned to Osborn Maledon in 2007 where he maintains an active personal injury tort, commercial litigation, and public law...

Kerry S. Martin is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Labor Law - Management. Kerry S., 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 Kerry S. is held by other top lawyers in the same geographic and legal practice area.

Bradley A. Cosman is a top attorney recognized by Best Lawyers in the practice area(s) of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law. Bradley A., who practices law in Phoenix, Arizona, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Bradley A. is held by other top lawyers in the same geographic and legal practice area.

David practices in the area of environmental and natural resources law, focusing on environmental compliance auditing, Superfund, solid and hazardous waste, asbestos, water quality, underground storage tank, environmental management systems, environmental remediation and environmental due diligence matters. He has conducted over 120 comprehensive environmental audits throughout the United States and internationally over the past eight years. He was recently named among the 2013 Best Lawyers i...

Marcia Busching’s legal practice is primarily devoted to arbitration, real estate, construction, and complex business matters, with significant experience in construction and commercial arbitration. With service on American Arbitration Association (AAA) panels spanning three decades, including international arbitration, Marcia is in demand for a wide variety of very significant construction and business disputes as well as consumer and smaller disputes. Presently, she is a member of the...