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Jennifer J. Wioncek

Partner, Tax & Private Wealth Practice Group Leader
Area of Focus: Tax, Private Wealth Services
"[She is] intelligent, forthright, clear and very approachable." - Chambers HNW source
GET TO KNOW Jennifer

Jennifer is an experienced tax lawyer handling the needs of high net worth clients and cross-border families. The depth of her experience includes advising on various international and domestic trust and estate planning, pre-immigration planning, expatriation planning, international reporting and compliance, offshore voluntary compliance, and 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”). ACTEC is 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. 

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.
Advised wealthySouth American family on itsagricultural and mining operations in South America regarding their corporate income tax and estate tax planning objectives. Since operations are held through various multi-tier corporate structures, advice included reorganization of structures to provide o...
Representation of cross-border family which owns and operates several pharmaceutical companies and other businesses across Latin America. Assisted with succession and income tax planning inside and outside the U.S. Also advised on best holding structure and treaty jurisdiction of the Latin American ...
Representation of several high net worth individuals and their families with respect to pre-immigration and other tax planning.
Representation of U.S. beneficiaries originally from Brazil in relation to the U.S. tax and reporting issues surrounding a foreign trust structure that held various types of non-U.S. private equity investments.
Advised on sophisticated estate and heirshipprotection planning for married couple with dual citizenshipusing the European Union law on succession to avoid Italian-forced heirship laws.
Representation of international professional soccer player. Advised on various U.S. tax issues, including protection against U.S. estate tax on significant U.S. assets and the potential change of residency to play soccer in the United States.
  • 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)
    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

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

    University of Miami School of Law
    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

    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