Gregory L. "Greg" Mast

Peter’s focus is protecting businesses and securing their future through risk management, litigation, and dispute resolution. Peter has extensive experience litigating in Arizona state and federal courts and has represented businesses of all sizes in the Arizona Court of Appeals and the United States Court of Appeals for the Ninth Circuit. Peter routinely handles matters involving business litigation, commercial real estate disputes, insurance coverage, employment disputes, and commerci...

Ms. Freed is the Managing Shareholder of the Phoenix office. Ms. Freed has exclusively practiced management-side labor and employment law throughout her career. Ms. Freed is a skilled and experienced litigator who regularly defends employers against claims of race, gender, disability, and age discrimination, sexual harassment, retaliation, wrongful termination, FMLA claims, and wage and hour violations before federal and state courts and various administrative agencies. In addition to her lit...

Erin F. Dunlap is a lawyer recognized by Best Lawyers in the practice areas of Administrative / Regulatory Law and Health Care Law. Erin F. practices law in Phoenix, Arizona Best Lawyers has recognized Erin F. Dunlap since 2026. 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 Erin F. Dunlap is held by other lawyers.

John K. Wittwer is a lawyer recognized by Best Lawyers in the practice areas of Construction Law, Insurance Law and Litigation - Insurance. John K. practices law in Phoenix, Arizona Best Lawyers has recognized John K. Wittwer since 2022. 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 John K. Wittwer is held by other lawyers.

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.

Ben Cooper advocates for clients in high-stakes appeals and writ proceedings in the U.S. Supreme Court, federal circuit courts, and state supreme and intermediate appellate courts from coast to coast. Ben’s practice also emphasizes both trial-court and appellate representation in such fields as intellectual-property protection and e-commerce disputes; federal, state, and local taxation; insurance coverage and bad-faith defense; and public pension plans. In the U.S. Court of Appeals for ...

Andrea S. Tazioli is an experienced litigator and trial attorney practicing in the areas of White Collar Crime/Criminal Defense, Commercial Litigation, Government and Internal Investigations. Andrea is skilled in all aspects of litigation, including law and motion practice, mediation, arbitration, trial, and appellate practice. Andrea has tried numerous cases (civil and criminal) in both state and federal court. Andrea regularly defends individuals and corporations charged with white collar a...

Chris is a member of Keller Rohrback’s Complex Litigation and Bankruptcy Groups. He has represented debtors, creditors, Court-appointed committees, and asset purchasers in Chapter 11 reorganization proceedings and workouts. In recent years he has also focused on representing plaintiffs in ERISA class actions. Chris has wide-ranging experience in complex commercial matters, from corporate restructuring to breach of fiduciary duty, commercial real estate, contracts, patent infringement, a...

James Fassold is a shareholder at Tiffany & Bosco who concentrates his practice on probate and trust litigation, estate administration, elder law, and appeals. He is an adjunct professor at the Phoenix School of Law, and has served as a mediator and expert witness. Over the years, Jim has handled numerous probate and trust disputes, as well as guardianships and conservatorships. He is frequently engaged to handle complex probate litigation matters, including will and trust contests, breac...

Kevin M. Estevez is a partner at Jaburg Wilk; his practice focuses on construction law and commercial litigation. He represents general contractors, subcontractors, material suppliers, architects, engineers, and business owners in construction and business matters, including litigation, arbitration, Arizona Registrar of Contractors complaints, contract review and drafting, and entity formation and licensing. Kevin is a frequent writer on issues affecting the construction industry. He is the a...