Alejandro Barrientos

Mike is a trial lawyer, focusing on the litigation of disputes on behalf of individuals and businesses. With over twenty years of experience, Mike has represented individuals and companies of all sizes with integrity, common sense, and consistent success, earning the trust and loyalty of his clients and the respect of his peers. He has pursued and defended a broad spectrum of disputes, from small to complex, multi-million dollar claims.

Jamie Halavais, a Member based in the firm’s Phoenix office, concentrates her practice on complex commercial litigation and class action defense. With over fifteen years in the courtroom, Jamie helps businesses and individuals resolve their most difficult problems. She has experience defending clients facing alleged class actions and other complex commercial litigation issues. She also handles insurance defense issues such as breach of contract and bad faith claims, as well as a wide va...

Ms. Villanueva is an attorney in the firm’s Intellectual Property Department. She practices in the areas of domestic and international trademark and copyright prosecution, licensing and enforcement. Ms. Villanueva assists clients with brand development and with identifying various protectable aspects of the clients’ products, services and concepts. She also helps clients with clearing all aspects of advertising, promotional and marketing materials and products, including trademark...

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...

Appeals Eric regularly handles high-profile appeals and issue litigation. He has argued major cases before the Ninth Circuit, Arizona Supreme Court, and Arizona Court of Appeals. Eric is listed in Benchmark Litigation’s 40 & Under Hot List, Best Lawyers, and Southwest Super Lawyers for appeals. Before joining private practice, Eric clerked on the U.S. Court of Appeals for the D.C. Circuit. He currently serves as a Ninth Circuit Appellate Lawyer Representative and as Chair Elect for ...

Janey Henze Cook represents clients in white collar and non-white collar criminal cases arising out of felony and misdemeanor crimes, including fraudulent schemes and artifices, homicide, assault, theft, public corruption, drug offenses, gambling, prostitution, forfeiture, and offenses against public order. Janey has also represented media enterprises with respect to First Amendment constitutional issues, as well as represented elected officials in matters involving disclosure obligations and...

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

As a founding member of Pollart Miller, Eric draws on over 20 years as practicing attorney to represent clients in Colorado, Utah, Arizona and Nebraska. As litigation counsel and advisor, he supports and advocates for the interest and rights of his clients in their insurance and employment-related issues with an emphasis on defending workers’ compensation matters. Whether large national corporations or those with regional focus, Eric provides counsel to assist clients with risk assessme...

Tim Strong is an accomplished litigator who, for nearly twenty years, has focused his practice on the defense of complex insurance coverage and bad faith actions. Tim has successfully defended high-stakes cases ranging from class actions attacking institutional claim-handling practices, to individual personal-lines bad-faith cases, to complex commercial matters seeking coverage under D&O, CGL, builders risk, commercial property, and cyber-risk policies. Tim regularly defends workers'-comp...

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...