Your Trusted Estate Planning Attorneys

At Udall, Spilsbury & Associates, we know estate planning is personal—that’s why we’re here to guide you every step of the way. Based in Mesa, we proudly serve the greater Phoenix area and beyond, helping families create wills, trusts, and power of attorney documents with clarity and confidence. Meet our dedicated team and see how our experience can help you.

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Joseph Udall

Partner

With a career spanning more than 30 years, Joseph M. Udall has dedicated himself to serving clients in the realms of estate planning and diverse business law issues. He serves clients residing in Arizona and the families of individuals who were Arizona residents when they died. He is a teacher at heart and makes complicated processes easy to understand.


Beyond his legal career, Joe has been married for over 36 years and is a proud father of four children and grandfather to five grandchildren. Family is at the core of his values, and he understands firsthand the importance of thoughtful estate planning to protect loved ones and future generations.


He pursued his Bachelor’s degree at Brigham Young University, achieving magna cum laude honors upon graduation with an Economics Degree. Continuing his academic journey, he excelled at Arizona State University’s law school, where he held the position of Articles Editor for the Arizona State Law Journal and graduated as the valedictorian of his class.

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David Spilsbury

Partner

Dave is an Arizona native who lives in Mesa with his wife Patti where they are raising their five children. In his earlier life Dave helped build Tree Doctors, a leading Valley tree care service. He still loves to climb trees, knows the value of hard work, and does not take air conditioning for granted.


Dave graduated summa cum laude from ASU in 2010 with a B.S. in Interdisciplinary Studies with emphases in Business and History. He then graduated fourth in his class in law school, graduating cum laude from Arizona Summit Law School in December 2013. While In law school Dave began honing his litigation skills as a member of Moot Court.


From 2015-2020 Dave was a Prosecutor for the City of Phoenix and a Domestic Violence Specialist. He gained invaluable trial practice there and successfully tried hundreds of cases including many jury trials.


In 2020 Dave opened Spilsbury Law, with offices in the Udall Office Building in downtown Mesa. His practice is dedicated to estate planning and probate litigation. Dave can help you and your loved ones stay out of the courtroom through careful drafting of estate planning documents, but if needed he is also an experienced courtroom advocate.

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Providing Estate Planning Services in the Valley and Beyond

We proudly serve families across Arizona and beyond, helping local clients with estate planning and assisting out-of-state individuals in managing the estates of their Arizona loved ones.