Michael J. Petitti, Jr.

Jerome Elwell is a litigator with extensive experience in complex civil and commercial litigation, including plaintiff’s personal injury and trust and estate litigation. The Best Lawyers ® and Super Lawyers honoree devotes a significant portion of his practice to probate and estate litigation, including contested guardianship and conservatorship matters, will and trust contests, disputed estate administrations and elder abuse violations. He received his B.S. in general business and ...

Helen R. Davis is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice, Commercial Litigation and Family Law. Helen R., who practices law in Phoenix, Arizona, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Helen R. is held by other top lawyers in the same geographic and legal practice area.

Clark L. Derrick began his legal career in Phoenix in 1972 after having graduated, with distinction, from the University of Arizona, College of Law and entering into the practice with John J. Flynn and the firm of Flynn, Kimerer, Thinnes & Derrick. While a student at the University of Arizona, College of Law, Clark was Symposium Editor of the Arizona Law Review and was elected a member of the Order of the Coif. He received his undergraduate, Bachelor of Arts degree in 1968 from the Univer...

GABRIEL R. ARAGON joined CDQ in 2006 and is a Partner with the firm. Gabe practices in all areas of complex commercial litigation, with particular experience in employment litigation matters and partnership disputes in the medical marijuana industry. He is active across various professional organizations, including previously serving as Chair of the Maricopa County Bar Association’s Section of Litigation. As selected by his peers, Gabe has been recognized as an AV-Preeminent attorney, a...

Darren T. Case is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Darren T., who practices law in Phoenix, Arizona, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Darren T. is held by other top lawyers in the same geographic and legal practice area.

Nichole Wilk brings over a decade of business and legal expertise. She began her law career working in commercial litigation and now uses those skills and knowledge gained to better assist and protect her clients in business and real estate transactions. Her practice includes both litigation and transactional representation. Real Estate: Nichole assists clients in a wide range of real estate matters. Her experience includes assistance with the purchase and sale of real property, leasing, and ...

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 ...

Shareholder Certified Specialist in Personal Injury and Wrongful Death Law Wendi has been certified by the State Bar of Arizona as a specialist in Personal Injury and Wrongful Death law due to her nearly three decades of litigation experience in both state and federal court. Her practice focuses on aggravated liability and damages matters, including Federal Motor Carrier (trucking accident) cases, vehicular products liability matters, construction site injury and death matters, and premises l...

John K. Wittwer is a top attorney recognized by Best Lawyers in the practice area(s) of Construction Law, Insurance Law and Litigation - Insurance. John K., who practices law in Phoenix, Arizona, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John K. is held by other top lawyers in the same geographic and legal practice area.

Tim is a shareholder, member of the Gallagher & Kennedy board of directors and head of the firm’s Tax Law practice. For over 20 years, Tim has focused his practice in all areas of federal tax law, with an emphasis on partnerships, limited liability companies, C and S corporations, real estate, international taxation, and civil tax controversy. He provides tax planning, structuring and documentation for business and individual clients, including joint ventures and tax-exempt organiza...