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Nancy Bonniwell is a Shareholder focusing her practice on estate, business succession and marital property planning, estate administration and business law. She is a frequent presenter on the subjects of estate planning, business succession planning and charitable giving.


  • 20975 Swenson Drive, Suite 400
    Waukesha, WI 53186


  • University of North Dakota, J.D.
  • University of Wisconsin–Madison, B.S., with honors

Bar Admissions

  • Wisconsin, Wisconsin State Bar


  • Town of Delafield Board of Appeals - Chair
  • Waukesha County Board of Adjustment - Member
  • Association for Women Lawyers - Member
  • Lake Country Charity Connection - Member
  • Milwaukee Bar Association - Member
  • Planned Giving Council of Children’s Hospital and Health System - Member
  • Professional Dimensions - Member
  • Tall Pines Conservancy - Director and Member of Executive Board
  • TEMPO Waukesha - Member
  • Waukesha County Bar Association - Member
  • Waukesha County Community Foundation - Advisory Board Member
  • Waukesha County Estate Planning Council - Member, Former President

Court Admissions

  • U.S. District Court, Eastern and Western Districts of Wisconsin

Recognized in The Best Lawyers® in America 2023 for work in:

  • Trusts and Estates


  • Wisconsin Law Foundation, Fellow
  • Outstanding Advisor of the Year Award, Greater Milwaukee Foundation (2014)


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