John T. Masterson

Lawrence D. Hirsch is a top attorney recognized by Best Lawyers in the practice area(s) of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law. Lawrence D., 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 Lawrence D. is held by other top lawyers in the same geographic and legal practice area.

Mr. Ambrose is an accomplished trial attorney, having litigated hundreds of complex personal injury and commercial matters in State and Federal Court. His practice focuses primarily on Medical Malpractice, Personal Injury, Insurance Bad Faith, Civil Rights, and Wrongful Death matters. Scott has obtained many multi-million dollar settlements on behalf of his clients. For thirty years his practice has emphasized the litigation and resolution of matters involving catastrophic injury, wrongful de...

Andrew Pappas is a nimble advocate and trusted counselor whose practice focuses on appeals, complex commercial disputes, and governmental and regulatory matters. Before joining Osborn Maledon, Andrew served as general counsel of the Arizona House of Representatives, where he was the principal legal advisor to the Speaker and members of the majority caucus. In that capacity, Andrew provided legal, policy, and strategic advice on a vast range of issues, with a particular focus on elections, red...

Beth is a shareholder at Jaburg Wilk and has been practicing law for more than three decades. She chairs the firm’s Estate Planning and Business Law Department. As both a Tax Specialist certified by the State Bar of Arizona – Arizona Board of Legal Specialization and a Certified Public Accountant, she has a unique expertise in assisting her clients with their estate planning as well as closely held businesses. She has assisted hundreds of families – including ones with subst...

Kathleen Stillman is a partner at Stillman Smith Gadow, with her practice focused solely on family law matters. Ms. Stillman has been a Certified Specialist in Family Law since 2021 and a fellow of the American Academy of Matrimonial Lawyers (AAML) since 2024. She brings to her practice thirteen years of teaching experience, advocating for children, and working with families. Ms. Stillman has received recognition for community service in the area of legal services and regularly serves as a co...

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.

Kevin P. Nelson is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Construction. Kevin P., who practices law in Phoenix, Arizona, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kevin P. is held by other top lawyers in the same geographic and legal practice area.

Daniel E. Durchslag is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Litigation - Real Estate. Daniel E., who practices law in Phoenix, Arizona, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Daniel E. is held by other top lawyers in the same geographic and legal practice area.

Theresa’s practice has been spent in fast-paced jury trials, employment and fair housing litigation, and appellate work. In her criminal practice, Theresa handled cases involving fraudulent schemes, tax fraud, real estate fraud, and racketeering. Theresa is a regular presenter to lawyers and the community on topics including Civil Rights, Harassment Free Work Environments, and the Rules of Evidence. Before joining Osborn Maledon, Theresa served as Section Chief Counsel for the Arizona A...

Judith K. Weiss is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Mergers and Acquisitions Law. Judith K., who practices law in Phoenix, Arizona, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Judith K. is held by other top lawyers in the same geographic and legal practice area.