Charles P. "Chuck" Keller

Brennan is a Certified Specialist in Real Estate and practices with the firm’s zoning and real estate attorneys. He has experience in the areas of land use planning, zoning, real estate transactions, landlord/tenant, title insurance and other real estate-related matters. Brennan also is experienced in commercial and business litigation. Brennan is licensed to practice in Arizona state and federal courts. He received his J.D. from St. Mary’s University Law School in San Antonio, Te...

For over 28 years, David Bray has provided day-to-day counsel, guidance, advice, and representation to clients on a range of employment law matters and disputes. For the last five years, he has been listed in Best Lawyers in America in the commercial litigation category. He regularly represents clients in litigation in federal court, state court, and arbitration tribunals in matters involving trade secrets, non-compete agreements, and other employment claims. David is a 1992 graduate of Corne...

Lauren Garner is an experienced litigator and mediator whose practice emphasizes probate, trusts and guardian/conservatorships. Lauren’s clients rely on that experience and her sensitivity in matters that touch families, trusts, and estates. Dedication and personal involvement are a critical part of Lauren’s practice. She feels a deep sense of accomplishment in her 1998 move to Phoenix, after nearly a lifetime of business and personal contacts in Miami, Florida. Here, she has deve...

Jim practices corporate finance and real estate law, representing local and national real estate developers, lenders and investors with commercial real estate matters including apartments, industrial, office and retail projects, master planned communities and shopping centers. Jim has negotiated leases with national retail tenants, assisted borrower clients with securitized loans and synthetic leases, drafted various joint venture agreements and both closed and enforced secured loans in real ...

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...

Phillip B. Visnansky is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Elder Law and Litigation - Trusts and Estates. Phillip B., 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 Phillip B. 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...

Thayne has developed significant experience in Indian law. He represents Native American tribes in transactional matters, both on- and off-reservation. In addition to his work with Native American tribes, Thayne represents real estate investors, a Fortune 100 company, an international industrial data management company, and a wide variety of other clients in commercial real estate transactions. A trusted advisor, most of Thayne’s client relationships have existed for more than a decade....

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...

Mr. Fradkin has extensive trial experience in the areas of medical and professional malpractice defense, products liability, personal injury defense, and insurance defense. He focuses his practice on the defense of physicians, hospitals, and other medical professionals in medical malpractice cases. His clients include medical malpractice insurance carriers, including the largest medical liability insurer in Arizona, as well as several self-insured hospitals and medical centers across the Phoe...