Matthew Holman

Jon is a partner at O'Steen & Harrison, PLC. He joined the firm in 2005 and practices in the areas of personal injury, car accidents, contaminated food, legal malpractice, insurance bad faith, defective products and commercial litigation. He graduated from Occidental College in 2002 (B.A., Economics and Political Science) and the Arizona State University College of Law in 2005 (J.D., cum laude). He served as Senior Articles Editor of the Arizona State Law Journal and was a Willard H. Pedr...

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.

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.

Douglas J. Kunath is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Douglas J., 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 Douglas J. is held by other top lawyers in the same geographic and legal practice area.

Shanks Leonhardt is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law and Litigation - Insurance. Shanks, 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 Shanks 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...

Michelle Hogan is a former fraud prosecutor for the Arizona Attorney General’s Office and an experienced litigator who focuses on representing businesses, organizations, and individuals in complex commercial litigation, white collar defense, and privacy matters. Michelle leverages her investigative and analytical skills and experience to craft winning litigation strategy in defending white collar clients against civil and criminal charges and to litigate complex commercial disputes. In ...

Throughout his career, Andy has developed a reputation as a skilled negotiator and trusted advisor for complex businesses. His experience representing buyers, sellers, startup entrepreneurs, and investors has enriched his expertise in understanding transactions from multiple angles. The bulk of Andy’s practice revolves around sophisticated business transactions as well as serving as outside general counsel to private businesses and nonprofits working alongside Boards of Directors, CEOs,...

Mina C. O'Boyle is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Mina C., who practices law in Phoenix, Arizona, has been recognized since 2027. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mina C. is held by other top lawyers in the same geographic and legal practice area.

Tod F. Schleier is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Individuals and Litigation - Labor and Employment. Tod F., who practices law in Phoenix, Arizona, has been recognized since 1989. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Tod F. is held by other top lawyers in the same geographic and legal practice area.