DEEAN GILLESPIE STRUB founded her own law firm early in her career and has practiced law since 1985. She is an attorney as well as the owner and founder of the Phoenix law office of Gillespie, Shields, Durrant & Goldfarb. Ms. Gillespie has a veritable passion for teaching and throughout her career, has taught numerous CLE courses in family law to fellow members of the bar. In turn, she has mentored many young attorneys in family law over the years and has served as an adjunct professor at Phoenix School of Law. Ms. Gillespie has successfully represented clients in cases involving CPS and dependency matters, in loco parentis matters, custody disputes and complex family law litigation. She is a certified specialist in family law and trained in collaborative law where she attended international training in collaborative law in Munich, Germany in 2010. While the bedrock of the firm remains family law, her co-attorneys also practice in the areas of estate planning, probate, civil litigation and employment law, as well as specializing in family law, adoption, dependency matters, severance of parental rights, in loco parentis, collaborative law and complex family law litigation. She received a B.A. degree from Brigham Young University and her J.D. degree from Brigham Young University, J. Reuben Clark Law School, Provo.

THOMAS J. GRIGGS is an attorney with The Law Firm of M. Paul Fischer, P.C., where he practices in the area of complex family law matters. Mr. Griggs has been a Certified Specialist in Family Law through the State Bar of Arizona since 1993. Mr. Griggs is a fellow of the American Academy of Matrimonial Lawyers (president, Arizona Chapter 2011-2013). Mr. Griggs has been designated as a Southwest Super Lawyer for Family Law in Arizona 2008, 2009, 2010, 2014, 2015, 2016, 2017 , 2018 and 2019. He served as chair of the Board of Legal Specialization for the State Bar of Arizona for 2005 through 2018. Mr. Griggs is designated as a Senior Counsel (fellow) of the College of Master Advocates and Barristers. He served as a member of the 2015 State Bar Antitrust Task Force. He is a former member of the Family Law Practice and Procedure Committee of the State Bar of Arizona. He previously served as a member of the Continuing Legal Education Committee of the State Bar. Mr. Griggs served as a Judge Pro Tem of the Family Court Division of the Maricopa County Superior Court 1989-2009. Mr. Griggs currently serves as a member of the Board of Adjustment for the city of Peoria (vice-chair 2019). He earned his B.A. degree with a double major in history and political science from Simpson College (Recipient, Simpson Honors Scholarship) and his J.D. degree from William Mitchell College of Law (nka Mitchell Hamline School of Law). Mr. Griggs is a member of the State Bar of Arizona and the U.S. Supreme Court Historical Society. He lectures frequently for the State Bar of Arizona, AAML and other organizations on various issues in family law.

DAVID N. HOROWITZ is a certified family law specialist and shareholder with May, Potenza, Baran & Gillespie P.C. He was admitted to practice law in Arizona in 1990. A, summa cum laude, graduate of the University of Arizona College of Law in 1990, he has focused his practice in all areas of family law for more than 20 years with extensive experience in divorce, legal separation, annulment, child custody, visitation, child support, spousal maintenance, pre-nuptial agreements, parent coordination, domestic partnerships, grandparents rights, guardianship, step-parent adoption, and relocation. Mr. Horowitz, a fellow with the American Academy of Matrimonial Lawyers, is highly experienced in alternative dispute resolution including mediation and collaborative divorce. He currently serves as a judge pro tempore and as a parenting coordinator for the Maricopa County Superior Court. Mr. Horowitz is honored to have served on the Arizona Supreme Court’s Child Support Guidelines Review Workgroup, the Arizona Supreme Court’s Parenting Coordinator Rule Petition Rule Committee, and the Arizona State Senate Domestic Relations Committee; he is also a member of the State Bar of Arizona Family Law Advisory Commission and is its current chair, the State Bar of Arizona Continuing Legal Education Committee, the State Bar of Arizona Family Law Council, Arizona Association of Family and Conciliation Courts, and The International Academy of Collaborative Professionals. Mr. Horowitz is a past president of both Collaborative Divorce Professionals of Arizona and the Arizona Family Support Council. He frequently speaks at legal education seminars for the State Bar of Arizona, including the state bar’s course on professionalism and has presented for The International Academy of Collaborative Professionals, The Institute for Divorce Financial Analysts, and National Business Institute. Mr. Horowitz is the recipient of the 2005-2006 State Bar of Arizona CLE Award and the 2007 NALS of Phoenix Boss of the Year Award. He earned his undergraduate degree in business economics from the University of Arizona and has been teaching economics and legal studies at Phoenix College since 1990. Mr. Horowitz has also taught family law/general practice skills at Arizona Summit Law School.

TERESA S. THAYER is a founding partner of the Phoenix law firm of Thayer & Thayer, P.L.L.C., where she practices in the area of family law. She has served as a judge pro tem on the Arizona Court of Appeals, and has taught at CLE seminars on domestic relations and ethics sponsored by the State Bar of Arizona and the Arizona Trial Lawyers Association. Ms. Thayer currently serves on the Board of Visitors of the University of Arizona College of Law, and is a member of the State Bar of Arizona and the State Bar of California. She earned her B.S. degree from Arizona State University and her J.D. degree from the University of Arizona College of Law.

CLAUDIA D. WORK is an attorney with the Phoenix firm of Campbell Law Group of Arizona, PLLC, where her practice focuses primarily on civil litigation and all aspects of family law, including protecting and enforcing the rights of unmarried opposite and same sex couples and their children at all stages of their relationships. Ms. Work serves on the National Family Law Advisory Council for the National Center for Lesbian Rights. Ms. Work is a member of the American Bar Association and the State Bar of Arizona, and is admitted to practice in the State of Arizona and the 9th Federal District Court. She earned her J.D. degree from the University of New Mexico School of Law.