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Baker & McKenzie
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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 Wioncek works in Firm’s Tax Practice Group. She practices mainly in the area of global wealth management, with emphasis on trust and estate planning. Ms. Wioncek is a frequent author and lecturer on tax-related topics. She was the principal author of comments submitted to the Internal Revenue Service on behalf of the Florida Bar Tax Section on proposed Treasury Regulations providing guidance under section 2642(g)(1). 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. Ms. Wioncek is active in her community. She regularly volunteers for Legal Lines and Volunteer Income Tax Assistance Program and is an adjunct professor at the University of Miami School of Law Tax LLM program. She is currently teaching the 2013 Spring Semester class entitled, “Federal Taxation of Trusts and Estates” and in the past taught classes, “Planning with Trusts (Part I) – Grantor Trusts.”

Practice Focus

Ms. Wioncek counsels clients on estate planning for individuals, including the preparation of wills, trusts and other documents to ensure the effective management and orderly transfer of clients’ property. She 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 further counsels 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 (with Robert F. Hudson Jr.), “How to Advise Elderly Clients in Their Estate Planning Needs,” 14th Annual International Tax & Trust Training Program, Miami, Florida, 17-18 October 2013

Co-presenter (with Robert F. Hudson Jr., Ronald Evans, Marnin Michaels and Pratiksha Patel), “Handling Community Property in Tax and Estate Planning,” Baker & McKenzie’s 12th Annual International Tax & Trust Training Program, Miami, Florida, 14 October 2011

Co-presenter, "Don't Pass Exit or Pay $200 – An Update on Expatriation," Greater Miami Tax Institute, May 2011

Co-presenter, “Use of Debt Instruments and Private Annuities in Estate Planning,” ABA Section of Taxation 2011 Mid-year Meeting, Boca Raton, January 21 2011

Presenter, “Impact of Foreign Community Property Laws on U.S. Estate Tax Planning,” State Planning Council of Greater Miami, Miami, Florida, 20 January 2011

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Every day our more than 4,000 lawyers, economists, tax advisors and other professionals share insights and best practices across borders and practices. We speak more than 75 languages and represent more than 55 nationalities, and the close relationships among our people fosters the trust needed to develop and deliver world-class solutions to multinational clients.

We share an uncompromising commitment to excellence, which explains why more of our lawyers are included as leading lawyers in the Chambers Global Guide to the World’s Best Lawyers than any other Global 20 law firm.

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Passionately global
We are passionately global — it's in our DNA.

We started with a vision of going global and were in eight countries before our 10th anniversary. Today we have 76 offices in 47 countries -- including the emerging markets so important to the growth of your business.
We offer world-class career opportunities around the globe, while our entrepreneurial culture makes Baker & McKenzie a unique place to develop professionally.

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