Mary Ellen Simonson

Paul M. Gales, Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Public Finance Law. Paul M., 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 Paul M. is held by other top lawyers in the same geographic and legal practice area.

Mark practices commercial litigation and co-chairs the firm’s appellate practice section, handling civil appeals in the state and federal courts. For 25 years, he has represented clients in a wide variety of areas, including business torts and contracts, securities fraud, trade secrets, employment, professional malpractice, officer and director liability, and real estate litigation. Mark has been named a Best Lawyer by the Best Lawyers in America since 2009 , and is also recognized by A...

Dave Garner is a respected thought-leader, whose experience and influence in education law reaches from the classroom, to the boardroom, to the courtroom and beyond. For over 20 years, Dave has developed ongoing, long-term relationships with traditional public schools, charter schools, private schools, as well as private and public post-secondary educational institutions of all stripes. Dave’s expertise is frequently sought in an outside general counsel role for compliance training, pol...

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

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...

Ron Kilgard is a 40-year civil litigation lawyer.Over a long career, he has handled all manner of civil cases, from routine automobile accidents and two-party contract disputes of no interest to anyone but the parties, to multi-million dollar class actions covered in The New York Times and The Wall Street Journal . For the last 20 years, Ron has mostly litigated pension plan class actions. Ron helped Keller Rohrback pioneer company stock ERISA litigation in the late 1990s and early 2000s; he ...

Bill King’s trial practice focuses on complex commercial litigation and plaintiff advocacy before state and federal courts. He is a proven litigator, trial and appellate attorney, plaintiff advocate, and problem solver for businesses and individuals involved in serious and high-stakes disputes.

Valued by clients for his ability to analyze and respond to complicated commercial litigation, David has built a strong practice representing Fortune 50 companies in state and federal courts. He focuses on a wide range of complex litigation, including securities and intellectual property litigation, class action claims, as well as other large commercial disputes. He has provided regular counsel to large public companies facing lawsuits in Arizona who value his ability to advocate both in oral...

Shareholder David Villadolid is the senior partner in the firm’s Employment Law section and is recognized as an AV® Preeminent™* 5.0 out of 5 peer review rated attorney in Martindale-Hubbell. With more than 37 years of legal practice, David successfully advises companies, executives, and management on a broad spectrum of business and employment issues including compliance with state and federal laws and regulations. Clients express confidence in David’s ability to provid...

Lonnie J. Williams, Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Employment Law - Management. Lonnie J., who practices law in Phoenix, Arizona, has been recognized since 1995. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lonnie J. is held by other top lawyers in the same geographic and legal practice area.