Phillip P. "Phil" Guttilla

Anthony L. Marks is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Anthony L., 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 Anthony L. 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...

Linnette Flannigan is a top attorney recognized by Best Lawyers in the practice area(s) of Workers' Compensation Law - Employers. Linnette, 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 Linnette is held by other top lawyers in the same geographic and legal practice area.

Doug John’s law practice focuses on tax controversy and state and local taxation, with an emphasis on property tax counseling and litigation. A senior partner in the firm and a Best Lawyers in America honoree, Doug works with individuals and companies to navigate Arizona’s and Nevada’s complex state and local tax systems in order to minimize their income tax, sales and use tax, and property tax liability. Over the past six years, Doug has reduced his clients’ property ...

Van is a founding partner of O'Steen & Harrison, PLC, where he has had a general civil practice, emphasizing personal injury, defective products and nursing home abuse and neglect. He graduated from California Western University in 1968 (B.A.), where he was included in Who's Who In American Colleges and Universities. He graduated from Arizona State University College of Law in 1972 (J.D., cum laude). He served as an editor on the Arizona State Law Journal. Van was admitted to the State Ba...

Warren is a problem solver who commands two decades worth of experience working on bankruptcy issues, specializing in effectively representing corporations in large-scale bankruptcies involving tens of millions of dollars. He provides relief to debtors and creditors facing complex chapter 7 and chapter 11 issues in Arizona. He also works outside of jurisdiction, including in New Jersey, California, Texas, and Delaware. He has successfully represented International Technical Coatings, Inc., Qu...

James is a first-chair trial lawyer with the insight from serving as an Arizona trial judge for more than seven years. He focuses his practice on trial and appellate representation in complex commercial litigation and elections disputes. He also serves as arbitrator, mediator, and special master. Before joining the firm, James served as a judge on the Arizona Superior Court, where he presided over hundreds of jury trials, bench trials, evidentiary hearings, and oral arguments. The civil trial...

Flavia Campbell focuses her practice in the areas of trademarks and copyrights, counseling her clients on management of their intellectual property rights in the U.S. and abroad. In addition to assisting clients with the selection, clearance, prosecution, policing and enforcement of their trademarks, she negotiates and drafts a wide variety of intellectual property agreements, represents clients in opposition and cancellation proceedings before the Trademark Trial and Appeal Board, and provid...

Martin J. Solomon is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs. Martin J., 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 Martin J. is held by other top lawyers in the same geographic and legal practice area.

Steven N. Berger has focused his career on resolution of complex business disputes through effective representation of clients in bankruptcy or other reorganization proceedings, loan workouts, litigation and business transactions. He co-founded the firm in 1999 after gaining experience as an associate and partner at two of Arizona’s largest law firms. He has extensive experience in representing parties involved with troubled loans or troubled businesses, and has represented lenders, les...