D. Alexander Baker

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.

Kelton Busby is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Kelton, 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 Kelton is held by other top lawyers in the same geographic and legal practice area.

Jennifer L. Sellers is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Construction Law, Employee Benefits (ERISA) Law, Employment Law - Management and Health Care Law. Jennifer L., 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 Jennifer L. is held by other top lawyers in the same geographic and legal practice area.

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...

Aaron Harmon has built a strong reputation in Arizona’s entrepreneurial community as a lawyer who provides practical counsel to founders, executives and investors alike. Aaron represents startups, established companies and investors in angel, venture capital and private equity financings, in mergers and acquisitions, in negotiating and drafting commercial contracts, and in general corporate and commercial matters. Aaron began his legal career as a judicial clerk for Chancellor William B...

Alden chairs the firm’s Employment and Education Law Departments. She assists employees and employers with wage and hour disputes, harassment and discrimination claims, restrictive covenant disputes, whistleblower claims, and federal and state compliance issues. In her education practice, she assists students and educators with residency, tuition, disability accommodation, discrimination and retaliation, disciplinary matters, and tenure and promotion disputes. Alden has substantial expe...

Tim has decades of experience in the regulation of water and wastewater utilities, electric utilities, gas utilities, and telecommunications utilities. His career has been dedicated to navigating utility regulation matters at the Arizona Corporation Commission (ACC), affording him comprehensive insight into these industries from various perspectives. Tim has served as a Staff Attorney at the ACC, in-house counsel at a prominent water utility, and external counsel for diverse utilities. Tim po...

Roger Cohen has over 40 years’ experience as a business attorney, representing clients in both litigation and transactions. He has a deep knowledge and understanding of commercial law and the litigation process and is a forceful and effective advocate for his clients. Roger’s experience as a transactional attorney adds value in the litigation setting, as he can relate the documentation process to issues that arise in business and commercial disputes. Conversely, his knowledge and ...

Kevin is a shareholder, member of the Gallagher & Kennedy board of directors, and head of the firm’s litigation and public bidding and procurement departments. He is keenly attuned to the needs of his clients, developing strategy and implementing solutions that are singularly focused on their goals. Over his 30 year career, his litigation skills have been honed to a razor’s edge, and his civil litigation experience is extensive and far reaching, both in and out of the courtroo...

Carolyn (“CJ”) Johnsen has over 30 years’ experience representing debtors, creditor committees, and lenders in complex multi-million dollar reorganizations. Her expertise spans a wide-range of industries including healthcare, mortgage lending, real estate, manufacturing, retail, refining, hospitality, aviation and energy-related. She was lead counsel in one of the largest real estate bankruptcies filed in Arizona, has counseled Arizona’s largest utility company on bank...