Samuel M. DiPietro

Senior Associate
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Spencer Fane attorney Samuel DiPietro

Overview

Samuel DiPietro helps high-net-worth families create coordinated, tax-efficient estate plans that grow and adapt with them. His practice focuses on families with significant assets, multiple state residences, and sophisticated estate and income tax considerations who often find that a standard estate plan no longer fits their needs.

As both an estate planning attorney and a CPA with two advanced degrees in taxation, Samuel approaches planning through an integrated lens, considering legal structure, tax consequences, asset ownership, and long-term family objectives together rather than in isolation.

He regularly works with families who:

  • Have $5 million or more in total assets.
  • Own real estate in multiple states.
  • Have existing estate plans, including irrevocable trusts.
  • Are concerned about estate tax exposure, income tax efficiency, or both.
  • Have growing wealth, business interests, or evolving family dynamics.

Rather than focusing solely on drafting documents, Samuel’s work emphasizes a structured planning process that can be summarized in three phases:

  1. Design. Clarifying goals, family considerations, asset structure, and tax exposure.
  2. Build. Creating estate plans that coordinate legal and tax-aware solutions.
  3. Maintain. Reviewing and adapting plans as laws, assets, and family circumstances change over time.

Much of Samuel’s work involves reviewing existing planning documents that are technically “complete,” yet fail due to lack of coordination, outdated assumptions, or changes in wealth or residency. Others engage him before planning begins, seeking a thoughtful and disciplined approach from the outset.

Samuel works closely with clients’ other advisors (including CPAs, financial advisors, and trustees) to ensure alignment between a client’s estate plan, business plan, and overall financial plan.

Credentials

Education

  • Northwestern University School of Law (LLM), with honors
  • Northwestern University School of Law (J.D.), cum laude
  • Arizona State University – W. P. Carey School of Business (M.Tax)
  • Arizona State University – W. P. Carey School of Business (B.S.), summa cum laude

Bar Admissions

  • Arizona
  • Illinois
  • Oregon
  • Washington

  • Works with high net worth families on comprehensive gifting strategies to mitigate and, in some instances, eliminate estate tax exposure.
  • Counsels families regarding business succession planning and asset protection strategies.
  • Designs estate plans to incorporate and address non-tax considerations oftentimes faced by clients (e.g., second marriages with children from prior marriages, children with special needs, beneficiaries suffering from addictions, non-U.S. citizen spouses, etc.).
  • Implements estate plans to avoid probate and efficiently pass wealth to future generations.
  • Advises clients with respect to charitable gifting.
  • Aligns income tax planning with estate planning to maximize the efficient growth and transfer of clients’ wealth (e.g., structuring sales of family businesses, community property planning, qualified small business stock planning, etc.).

  • Make-A-Wish Arizona, Wishmakers Council, 2025
  • Grand Canyon University, Adjunct Professor (FIN-440 | Estate Planning & Special Topics)

  • Best Lawyers in America, Ones to Watch, 2026
  • PHOENIX Magazine, Top Lawyers, Wills, Trusts, & Estates, 2025
  • The Tax Lawyer (an ABA-published journal), Editorial Board Member, 2019 – 2020

  • Financial Planning Association of Greater Phoenix, Professional Development Committee Member
  • Central Arizona Estate Planning Council, Member
  • Arizona State Board of Accountancy, Certified Public Accountant