Atty. William E. Keenen
William E. Keenen focuses his practice primarily on estate planning for high-net-worth and ultra-high-net-worth individuals and their families.
Profile Summary
About William E. Keenen at a glance
William E. Keenen is a Shareholder based in Miami, Florida, practicing at Greenberg Traurig, LLP. Their practice focuses on trusts, estate planning, and tax. Educated at University of Miami School of Law (J.D., 2012) and Sam Houston State University (B.S., 2008). Active member of 2012. Serands clients in Miami, FL and the surrounding metropolitan area.
Want to Get Service From This Attorney?
Sign up free and choose one of the two methods below.
Have a legal question? Sign up free, submit it through the Ask the Attorney module and receive a focused answer from a specialist.
- Free to ask a question
- Answers from specialist attorneys
- Optional private / anonymous question
Request an online video meeting or an in-person consultation at the attorney's office. Pick a time that works for you and share the details securely.
- Online video meeting
- In-person at the attorney's office
- Secure messaging and payment
About
- William E. Keenen focuses his practice primarily on estate planning for high-net-worth and ultra-high-net-worth individuals and their families
- He works with entrepreneurs, private equity fund principals and managers and other business owners and executives to pursue their multigenerational wealth transfer objectives
- He routinely advises clients who are relocating from high-income-tax jurisdictions within the United States and has experience advising clients in the sports and entertainment sectors concerning their unique estate planning needs
- In furtherance of his clients’ objectives, William prepares wills, trusts and a variety of other instruments and, where appropriate, designs more sophisticated estate planning structures
- William is often called upon by clients to assist them with the negotiation and preparation of a variety of marital agreements, including prenuptial and postnuptial agreements
- In addition, family lawyers have sought William’s help in resolving complex trust matters arising in the context of divorce
- William counsels clients with respect to the day-to-day administration of trusts and estates, including in matters involving post-mortem tax planning
- He has assisted individual and corporate fiduciaries, as well as beneficiaries, in litigated trust and probate matters
- William has represented clients in tax controversies and other tax compliance matters before the Internal Revenue Service (IRS), including matters of U.S. income, estate, gift and generation-skipping transfer (GST) taxation, and, early in his career, offshore voluntary disclosures
- He has also assisted clients with the formation and operation of private foundations and with the negotiation and preparation of agreements implementing lifetime and testamentary gifts to non-profit institutions
- William has written about and lectured on various transfer tax topics affecting wealthy individuals and their families, including in the areas of shifting domicile within the United States, allocations of GST exemption and the application of the U.S. estate and gift tax law to transfers of property by citizens and non-citizens of the United States
- Concentrations •Multigenerational wealth transfer planning •Estate, gift and GST tax matters and controversies before the IRS •International estate planning •Prenuptial and postnuptial agreements •Trust and estate administration and litigation •Business succession planning •Private foundations Recognition & Leadership Awards & Accolades •Listed, The Best Lawyers in America •Tax Law, 2025-2026 •Trusts and Estates, 2026 •'Ones to Watch,' Tax Law
- Trusts and Estates, 2021-2024 •Listed, South Florida Legal Guide, 'Top Up-and-Comer,' 2020-2022
Practice Areas Explained
William E. Keenen's Areas of Practice
Each practice area below reflects the types of cases William E. Keenen handles, with a brief overview of what that area of law covers.
William E. Keenen is one of 104,172 trusts attorneys indexed nationally. Browse trusts attorneys in Florida →
An estate planning attorney prepares wills, trusts, powers of attorney, and healthcare directives to protect your family and pass on your assets.
William E. Keenen is one of 226,537 estate planning attorneys indexed nationally. Browse estate planning attorneys in Florida →
Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.
William E. Keenen is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in Florida →
Jurisdictional Context
Why local counsel matters in Florida
Practicing law in Florida. Legal matters in Florida are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Miami are typically filed in the local municipal court or the appropriate Florida state district court, depending on subject matter and amount in controversy. An attorney licensed in Florida brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Florida courts without local counsel or pro hac vice admission.
Looking for additional Florida attorneys? Browse all attorneys in Miami or all attorneys in Florida.
Frequently Asked
Common questions about William E. Keenen
Where is William E. Keenen's law office located?
What practice areas does William E. Keenen handle?
Where did William E. Keenen go to law school?
How can I contact William E. Keenen for a consultation?
Practice Areas
Education
Reviews
No reviews yet.