Jennifer J. Wioncek has joined the Miami, Fla., commercial law firm of Bilzin Sumberg as a partner in the tax and estate planning group, the firm announced Tuesday.

Wioncek has experience in domestic and international trust and estate planning for high-net-worth international private clients and their families. She particularly focuses on foreign ultra-high-net-worth individuals with assets in the United States.

She is a frequent speaker on international tax planning issues and is an adjunct professor at the University of Miami School of Law LLM program.