Joseph P. "Joe" Richardson

Jonathan is an inimitable advocate for Arizona’s growth-oriented startup community, acting as both legal counsel and trusted advisor to emerging entrepreneurs. Before graduating Rutgers University of Law, Jonathan worked as an electrical engineer providing internet security and infrastructure consulting services for companies like Accenture, Tosco, Phillips Petroleum Company, and ConocoPhillips. Jonathan’s unique experience as a seasoned information technology specialist and in-ho...

DANIEL P. QUIGLEY is a CDQ partner and the Vice President of the firm. He has been practicing law in Arizona since 1984. Since joining CDQ in 1997, Dan has practiced in all areas of commercial litigation, including cases raising antitrust and intellectual property issues. Dan has lectured at the State Bar of Arizona’s Professionalism courses and been an instructor at the National Institute for Trial Advocacy’s Arizona Deposition Skills Program. He is a member of the Xavier College...

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...

For more than 25 years, Mark has offered intelligent and persistent advocacy for his clients involved in complex litigation matters. In the process, he has helped clients ranging from the State of Arizona to the Arizona Cardinals achieve their objectives, even when doing so required trips to the court of appeals to confirm correct rulings by a trial court or reverse errant ones. Mark’s thorough analysis of evidence in complex cases often leads to key connections among facts that aid in ...

Sharon W. Ng is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Employment Law - Management. Sharon W., 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 Sharon W. is held by other top lawyers in the same geographic and legal practice area.

Mr. Delo practices primarily in the areas of medical malpractice defense, healthcare law, personal injury, and commercial litigation. He focuses his practice on the defense of physicians in medical malpractice cases on behalf of the largest medical liability insurer in Arizona and other carriers. Mr. Delo has significant experience in litigating healthcare coverage issues and has represented health maintenance organizations (HMOs) in numerous matters. He also represents physicians in discipli...

JIM O'SULLIVAN represents closely-held businesses, including law firms and other service professionals. Serving as general counsel and primary contact for businesses and their owners, Jim focuses on the ongoing legal needs of these clients, as well as strategic planning for growth and ownership succession opportunities. Jim leverages his considerable planning, negotiation and contract drafting experience to counsel clients through key events such as business formation, joint ventures, mergers...

Alan M. Bayless Feldman is the litigation manager of the Phoenix, Arizona, office of Jackson Lewis P.C. He has over 20 years of experience practicing employment and traditional labor law. In the labor relations area, he has defended more than 200 unfair labor practice charges for multiple clients in almost every region of the National Labor Relations Board across the U.S. with the vast majority being withdrawn or dismissed. Alan has in-depth experience providing advice to employers facing uni...

William Furnish has become a rising star in business litigation, lending his knowledge on cybersecurity, privacy and data security matters to businesses across a varied set of industries. As a litigator, William focuses on professional liability, complex commercial litigation, and privacy and data security matters. He excels at the intellectual, ethical challenges that arise between data privacy and attorney ethical violations and has established himself as a thought-leader in the ethical ove...

D. Alexander Baker is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. D. Alexander, who practices law in Goodyear, Arizona, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which D. Alexander is held by other top lawyers in the same geographic and legal practice area.