Jennifer J. Wioncek

Practice Group Leader, Tax & Private Wealth
Area of Focus: Tax, Private Wealth Services
"Jennifer has the best of both worlds. She is highly technical while using a common-sense approach, and maintains fees in line with clients' expectations." - Chambers HNW source
Jennifer J. Wioncek
Practice Group Leader, Tax & Private Wealth

Jennifer is a highly experienced tax attorney with extensive expertise in handling the tax and succession planning needs of high net worth clients for domestic and cross-border families. Her broad practice covers international and domestic tax and estate planning issues, pre-immigration tax planning, expatriation tax planning, private trust company structuring, cross-border estate administration, tax structuring for real estate funds with foreign investors, and other tax structuring for investment into the United States, and the acquisition, maintenance, and sale of U.S. real estate by foreigners. 
Jennifer is a Fellow of the American College of Trust and Estate Counsel (“ACTEC”), a professional organization of approximately 2,600 lawyers who have demonstrated the highest level of integrity, commitment to the profession, competence, and experience as trust and estate counselors. She is also a long-time adjunct professor at the University of Miami School of Law Tax LL.M. program, where she teaches different tax courses. 

Jennifer is very active in the Florida Bar Tax Section, including former Co-Director of the International Tax Division. She is also a member of the American Bar Association (Tax Section and The Real Property, Probate, and Trust Law Section), and the Real Property, Probate and Trust Law Section of The Florida Bar, and is a board member of the Society of Trust and Estate Practitioners Miami Branch (STEP Miami) with TEP recognition.

Q & A
How do you describe your practice?
My practice is the "circle of life" in a lot of ways. Many times my first interaction with an international client is when they are considering moving to the United States and we do pre-immigration planning. That is the start of the circle. Once in the U.S., there are new tax issues and the client has forged a bond with you from the start. Then when and if the client wants to migrate back to their country of origin or another country, I work on their exit strategies and expatriation tax planning. That's why I sum it up as the "circle of life" of a taxpayer from my perspective. I advise them through those various stages of their life.
How are you unique from other tax lawyers?
I distinguish myself from other lawyers by listening to clients. I see it all too often where lawyers are really just about how they can save you taxes without really trying to understand what the client wants and needs. A great tax idea you have is not always going to fit every client situation. You cannot find a solution to the client's problem if you first do not take the time to understand it.
  • New York University, LL.M., Taxation, 2007
    St. Thomas University, J.D., magna cum laude, 2005
    St. Thomas University, M.S., 2005
    St. Leo University, B.A., magna cum laude, 2003
  • American Bar Association
    Tax Section, Member
    The Real Property, Probate and Trust Law Section, Member
    American College of Trust and Estate Counsel (ACTEC)
    St Thomas University
    School of Law, Advisory Board Member
    The Florida Bar

    Tax Section, Member
      Co-Director of International Tax Division
      former Director of Section Administration
      former Young Tax Lawyers Director
      former Website Committee Chair
      former Pro Bono Committee Chair
    Real Property, Probate & Trust Law Section, Member

    Greater Miami Tax Institute
    Former President
    Society of Trust and Estate Practitioners (STEP)

    Miami Branch, Director
    Member (TEP)
    Chair of Mentorship Program

    University of Miami

    School of Law
     Representing High Net Worth Individuals, ISDE Introduction to U.S. Taxation Tax Course, Adjunct Professor
     Tax LLM Program, Adjunct Professor
     OUTLaw, Mentor

  • Florida
  • U.S. Tax Court
  • Fellow, American College of Trust and Estate Counsel (ACTEC)

    Band 3, Chambers HNW, Private Wealth Law - Florida, 2019 - present

    Chambers USA, Tax, 2023 - present

    STEP Private Client Awards, The Geoffrey Shindler Award for Outstanding Contribution to the Profession, 2022

    STEP Private Client Awards, Legal Team of the Year Category Finalist, 2020

    The Best Lawyers in America, Tax Law, Trusts and Estates, 2019 - present

    Citywealth Magazine, Top 100 Private Client Lawyers 2021;Leaders List, 2014 - present; International Powerwomen Recognition, 2015 - present; Future Leaders Top 100, 2018; Woman of the Year (North America) Shortlist, 2018; Inspirational Woman of the Year Shortlist, 2017; Lawyer of the Year IFC - Partner Shortlist, 2017, IFC Top 200 Powerwomen Recognition, 2017

    South Florida Business Journal, 40 Under 40, 2014, 2016

    Florida Super Lawyers, 2018 - 2020

    Florida Super Lawyers, Florida Rising Stars, 2012 - 2017

    South Florida Legal Guide, Top Up and Comers, 2016 - present

    Daily Business Review, Rising Star, 2014 - 2015

    Florida Trend, Legal Elite, 2018