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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 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. Ms. Wioncek is one of 40 “Rising Star” South Florida lawyers under the age of 40 recognized by the Daily Business Review. She has been consistently recognized as a “Rising Star” by Florida Super Lawyers and recently recognized as an Up and Comer in the South Florida Legal Guide’s. 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 has significant experience with domestic and international trust and estate planning matters for high net worth individuals; multijurisdictional estate administration matters; acquisition, maintenance and sale of US real estate by foreigners; pre-immigration planning; expatriation planning; international reporting and compliance; offshore voluntary compliance; and representation of family offices.

Professional Associations and Memberships

  • Florida Bar - Tax Section - Former Director of Section Administration and Young Tax Lawyers
  • Florida Bar - Tax Section; The Real Property, Probate and Trust Law Section
  • Society of Trust and Estate Practitioners (TEP) - Member
  • American Bar Association - Tax Section; The Real Property, Probate and Trust Law Section
  • Greater Miami Tax Institute - Member and Former President
  • Florida International Bankers Association (FIBA) - Member
  • Miami-Dade Women's Chamber of Commerce - Member

Corporate Social Responsibility

  • Volunteer, Leadership Council on Legal Diversity (LCLD) Success in Law School Mentoring Program
  • Member, Baker & McKenzie's North America Diversity and Inclusion Oversight Committee
  • Member, Baker & McKenzie’s Pro Bono Committee


U.S. Tax Court~United States (2008)
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-author, "Florida Goes Digital – The Passage of the Florida Fiduciary Access to Digital Assets Act," Steve Leimberg’s Estate Planning Newsletter, 10 May 2016

Author, "Limitations on the Use of the Unlimited Marital Deduction for Non-Citizen Spouses and Practical Alternatives," Leimberg Information Services, Inc. - International Tax Planning Newsletter #6, 14 April 2016

Co-author, "IRS Issues Proposed Regulations Regarding the 'Consistent Basis Reporting Rules' for Property Acquired by the Decedent," Baker & McKenzie Client Alert, 3 March 2016


Co-presenter, "Primer on Taxation of Trusts," Baker & McKenzie’s Passthrough Sub-Practice Group Training, Chicago, Illinois, 14 April 2016

Co-presenter, "Up to the Minute on Partnerships," Baker & McKenzie's 38th Annual North America Tax Conference, Miami Beach, Florida, 29 January 2016

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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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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.
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**In cooperation with Trench, Rossi and Watanabe Advogados
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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.

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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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