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Combining the knowledge of local laws and cultures with a global reach is just one of the ways Baker & McKenzie separates itself from other firms. Our genuinely global perspective allows us to operate without boundaries around the world, in every jurisdiction that is important to your business.

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Jennifer J. Wioncek
Jennifer J. Wioncek
Baker & McKenzie LLP

+ 1 305 789 8985

Jennifer J. Wioncek is an associate in Baker & McKenzie's Tax Practice Group in Miami. She is a three-time recipient of the Florida Bar Tax Section’s "Chair’s Special Merit Award" and is recognized as a "Rising Star" by Florida Super Lawyers. She was recently recognized on the Citywealth Leader’s List, and as one of 40 "Rising Star" South Florida lawyers under the age of 40. Ms. Wioncek is an adjunct professor at the University of Miami School of Law, teaching multiple classes in the area of trusts and estates. She is also an active speaker in the community focusing on pre-immigration and expatriation planning issues.

Practice Focus

Ms. Wioncek's practice focuses on global wealth management, with particular emphasis on domestic and international trust and estate planning. She counsels clients on the preparation of wills, trusts and other documents to coordinate the orderly succession of client assets. She also advises US and foreign clients with respect to US personal income, estate, gift and generation-skipping transfer tax matters, as well as on the special US rules affecting persons with connections to the US and other jurisdictions, including persons married to non-US citizens, US beneficiaries of foreign trusts and foreign persons owning US assets. Ms. Wioncek also advises high net worth individuals with respect to pre-immigration planning and expatriation.

Professional Associations and Memberships

  • Estate Planning Council of Greater Miami - Member
  • Florida International Bankers Association (FIBA) - Member
  • Society of Trust and Estate Practitioners (STEP) - Member
  • American Bar Association - Member
  • Florida Bar - Tax Section - Co-Chair, Membership Sub-committee
  • Florida Bar - Tax Section - Assistant Director, Section Administration
  • Florida Bar - Tax Section - Director, New Tax Lawyers
  • Florida Bar - Tax Section - Chair, Website Committee
  • Florida Bar - Tax Section - Former Chair, Pro Bono Committee (2008-2010)
  • Florida Bar - Real Property, Probate & Trust Law Section
  • Greater Miami Tax Institute - Vice President

Corporate Social Responsibility

  • Annual Participant, Volunteer Income Tax Assistance (VITA) Program (a program offering free advice to low- and moderate-income individuals)
  • Member, Baker & McKenzie’s Pro Bono Committee
  • Former Chair, Pro Bono Committee of the Florida Bar Tax Section (2008-2010)


U.S. Tax Court~United States (2007)
Florida~United States (2006)


New York University School of Law  (LL.M. Taxation) (2007)
St. Thomas University  (J.D. magna cum laude) (2005)
St. Thomas University  (Master of Science) (2005)
St. Leo University  (B.A. magna cum laude) (2003)

Baker & McKenzie LLP is a Limited Liability Partnership organized under the laws of the State of Illinois (USA) and is a member of Baker & McKenzie International, a Verein organized under the laws of Switzerland.
Co-presenter, "US v Foreign Trusts," 15th Annual International Tax and Trust Training Program, 29-30 September 2014
Co-presenter, "How to Advise Elderly Clients in Their Estate Planning Needs," 14th Annual International Tax & Trust Training Program, 17-18 October 2013 

Co-presenter, "Using a Corporate Settlor for a Foreign Trust," STEP 4th Annual Miami Summit, 31 May 2013

Presenter, "Often Overlooked Items in International Trust & Estate Planning," Greater Miami Tax Institute, 8 May 2013 

Co-presenter, "Drafting Trusts to Avoid U.S. Federal Estate Tax," 13th Annual International Tax & Trust Training Program, 10 October 2012 

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