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Baker & McKenzie
Learn about us Locally
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 is a partner in the Firm's Tax Practice Group. She is recognized as a leading tax and trusts and estates lawyer and "Power Woman" by Citywealth and as one of 40 "Rising Star" South Florida lawyers under the age of 40 by the Daily Business Review. Ms. Wioncek 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 is an active speaker in the community focusing on international tax planning issues. Ms. Wioncek is also an active adjunct professor at the University of Miami School of Law Tax LLM program teaching multiple classes in the area of trusts and estates.

Practice Focus

Ms. Wioncek has general international tax planning experience and concentrates her practice on domestic and international trust planning matters for high net worth individuals, including the preparation of wills, trusts and other documents to ensure the effective management and orderly transfer of a client's’ property. Ms. Wioncek also has extensive experience in handling multijurisdiction estate administration matters. She also regularly advises clients on the US tax consequences of immigrating to, and expatriating from, the United States.

Professional Associations and Memberships

  • Florida Bar - Member, Tax Section; Member, The Real Property, Probate and Trust Law Section
  • American Bar Association - Member, Tax Section; Member, The Real Property, Probate and Trust Law Section
  • Greater Miami Tax Institute - President
  • Society of Trust and Estate Practitioners (TEP) - Member
  • Florida International Bankers Association (FIBA) - Member

Corporate Social Responsibility

  • Former chair, Pro Bono Committee, Florida Bar Tax Section (2008-2010)
  • Member, Baker & McKenzie’s Pro Bono Committee


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.

"Handling Community Property Laws in International Tax and Estate Planning," STEP Journal, Volume 8, Issue 3, September 2010

"Often-missed Residency Rule Can Be Trap for Unwary: There Could Be U.S. Gift Tax Consequences for Transfers of Intangibles," The National Law Journal, Volume 30, No. 20, 28 January 2008 (co-author)


"US v Foreign Trusts," 15th Annual International Tax and Trust Training Program, Miami, Florida, 29-30 September 2014 (co-presenter)

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

"Often Overlooked Items in International Trust & Estate Planning," Greater Miami Tax Institute, Miami, Florida, 8 May 2013
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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 77 offices in 47 countries -- including the emerging markets so important to the growth of your business.
*Associated Firms
**In cooperation with Trench, Rossi and Watanabe Advogados
Other Geographic Initiatives

We service clients throughout the world and in some countries where we do not have offices, working with carefully selected local firms to leverage our global knowledge and capabilities.

 India Africa Central America 
  Central Europe   
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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