About
Thomas L. Frenn is a Milwaukee attorney at Frenn Law, whose practice focuses on small business law, real estate, nonprofit organizations, estate planning law, and probate disputes. His work includes residential and commercial real estate transactions, business matters, wills, trusts, and disputes arising after a death. He has extensive experience with property purchases and sales, tax-free exchanges, and eminent domain cases. His litigation background includes significant business and appellate disputes in Wisconsin.
Thomas earned his B.A. from the University of Wisconsin at Milwaukee. He later received his J.D. from Marquette University. His education provided the foundation for a career involving business law, real estate, estate planning, nonprofit organizations, probate, and litigation.
Thomas has handled major business disputes and appellate matters during his career. He led a legal team that recovered $8.9 million for 156 former employees in an Employee Stock Ownership Plan dispute. His appellate experience includes matters before the Wisconsin Supreme Court and Wisconsin Court of Appeals. He has contributed to Wisconsin statutory developments involving nonprofit corporations, timeshares, and nonprofit organization liability. He has written and lectured on small business, nonprofit, ethics, and business liability topics.
Thomas L. Frenn has held several leadership positions within the State Bar of Wisconsin. He served on its Board of Governors and previously chaired the Business Law Section. His work with the section included roles involving legislation, nonprofit organizations, and professional publications. He coauthored a chapter on buying and selling small businesses for the State Bar of Wisconsin’s Business Advisor Series. His professional background reflects decades of experience across business, property, nonprofit, estate, probate, and litigation matters.
Law Office Affiliations
- Attorney, Thomas L. Frenn Attorney and Advisor Law
- Member, State Bar of Wisconsin
Licensed State
- Wisconsin
Education
- Marquette University Law School
Juris Doctor (JD) - University of Wisconsin-Milwaukee
Bachelor of Arts (BA)
Awards & Badges

- Corporate & Incorporation
- Nonprofit Organizations
- Tax
- Probate
- Trusts
- Wills & Living Wills
- Appeals
- Litigation
- Commercial Real Estate
- Residential Real Estate




