Amelia Valenzuela

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...

Laura Sixkiller is a lawyer recognized by Best Lawyers in the practice areas of Commercial Litigation, Litigation - Mergers and Acquisitions, Litigation - Regulatory Enforcement (SEC, Telecom, Energy) and Litigation - Securities. Laura practices law in Phoenix, Arizona Best Lawyers has recognized Laura Sixkiller since 2023. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional r...

Isaac S. Crum assists business clients in developing, protecting, and enforcing intellectual property rights through consulting and litigation. His experience includes advising consumer product companies, startups, and non-profit organizations on intellectual property strategies and litigating complex cases involving patents, trademarks, trade dress, copyrights, trade secrets, and unfair competition.

Wayne’s areas of practice are federal and state income and estate taxation; real estate (including 1031 exchange and reverse exchange); partnership, corporation and limited liability company formation and compliance; business planning; estate planning; agricultural compliance with federal and state programs; and water law. He began his legal career as associate counsel for the Department of Treasury, where he tried civil tax cases.

Joel Robbins is a trial lawyer based in Phoenix, Arizona with Robbins Curtin Millea & Showalter LLC. After graduating from the University of Arizona James E. Rogers College of Law in 1986, he began his legal career with a Phoenix law firm and has practiced continuously since that time. Since 1989, his work has focused on serious personal injury, wrongful death, and civil rights matters arising throughout Arizona. Joel has represented individuals and defendants in a wide range of cases, in...

Kathleen Stillman is a partner at Stillman Smith Gadow, with her practice focused solely on family law matters. Ms. Stillman has been a Certified Specialist in Family Law since 2021 and a fellow of the American Academy of Matrimonial Lawyers (AAML) since 2024. She brings to her practice thirteen years of teaching experience, advocating for children, and working with families. Ms. Stillman has received recognition for community service in the area of legal services and regularly serves as a co...

MARK BOSCO has been a regular lecturer at numerous regional and national mortgage banking and default servicing seminars, and he has published numerous articles on mortgage banking, default servicing and related topics. Mr. Bosco has been appointed as approved Counsel for Federal National Mortgage Association (Fannie Mae) and Federal Home Loan Mortgage Corporation (Freddie Mac) to provide services in the areas of foreclosure, bankruptcy, loss mitigation, eviction, related litigation, and REO ...

John has substantial experience representing for-profit and not-for-profit companies in a wide variety of legal and business areas, from commercial, employment, tort and insurance-related litigation to real estate, corporate management, health care and school law issues. As a trial lawyer, John has tried more than 100 cases to conclusion, including jury trials, bench trials, arbitration matters and administrative law proceedings. He currently serves as a judge pro tem for the Maricopa County ...

Kristen is considered one of the nation’s leading “Big Data” and HIPAA compliance attorneys. She also has deep experience in data breaches, health information exchange, data sharing for research and clinical integration initiatives, clinical research compliance, clinical trials contracting, and biobanking and genomic privacy. Kristen is a sought-after national speaker on these issues and has been active in national healthcare policy. She is Past President (2013-2014) of the ...

Since the beginning of his career, Geoff has built his reputation as a lawyer’s lawyer. He serves as Osborn Maledon’s General Counsel and represents fellow attorneys in all aspects of the practice of law. For the last 30 years, his practice has split between both litigation and preventative counsel, advising on a regular basis to clients about risk management, professional liability issues, legal malpractice, bar discipline, ethics, and law practice management issues. Geoff has be...