Overview
Ann is a go-to resource for employers facing labor, employment, and human resources issues. With over 25 years of experience, she has successfully litigated on behalf of employers in a variety of forums, including state and federal courts, administrative agencies, and labor arbitration proceedings.
As a partner in Amundsen Davis’s Labor, Employment & Immigration Service Group, Ann advises businesses on a variety of workplace legal compliance issues and matters. These include discrimination and harassment claims, handling discharge and discipline, managing hiring and recruitment, drafting employment contracts and handbooks, and wage and hour violations. She also counsels management on how to stay compliant with federal, state, and local laws, such as the Americans with Disabilities Act, Family and Medical Leave Act, and the Fair Labor Standards Act and state law equivalents.
Outside of the office, Ann is a frequent author and speaker on employment law and provides management training for companies. In addition, she is an engaged member of her community who enjoys volunteering for causes she cares about.
Experience
Membership & Involvement
- Member: American Bar Association, Labor and Employment Law Section, Litigation Section; State Bar of Wisconsin, Labor and Employment Section; Eastern District of Wisconsin Bar Association; Society for Human Resource Management (SHRM); Metro Milwaukee Society for Human Resource Management; Impact100 Greater Milwaukee; Association for Corporate Growth Wisconsin (ACG)
- Board of Directors: Sharon Lynne Wilson Center for the Arts
- Independent Business Association of Wisconsin (IBAW): Board of Directors; Past President
- Waukesha County Business Alliance (WCBA): Economic Development Committee; Policy Board; Past Chair, Economic Development Committee
Court Admissions: Wisconsin; U.S. District Court, Eastern District of Wisconsin; U.S. District Court, Western District of Wisconsin; U.S. Court of Appeals, Sixth Circuit; U.S. Court of Appeals, Seventh Circuit
Honors
- Selected to The Best Lawyers in America® in Employment Law - Management: 2021, 2022, 2023, 2024, 2025
- Selected to The Best Lawyers in America® in Labor Law - Management: 2024, 2025
- Selected to Wisconsin Law Journal’s Powerlist – Employment Law: 2024
- Wisconsin Law Journal's “Women in the Law”: 2016
Resources & Insights
Speaking Engagements
Published Works
Blog Posts
Education on Demand
Bob Simandl and Ann Barry Hanneman, partners in the firm’s Labor, Employment & Immigration Service Group, will bring their extensive experience in this area to address legal and practical compliance obligations for employers.
Firm News
- Amundsen Davis Welcomes Three Senior Labor & Employment Partners in Wisconsin
Amundsen Davis Welcomes Three Senior Labor & Employment Partners in WisconsinAmundsen Davis, a leading full-service business law firm, announces the addition of three senior labor and employment attorneys, Ann Hanneman, Craig T. Papka, and Robert J. Simandl, to its Wisconsin footprint.
- Breakfast Briefing Series - FMLA and ADA Compliance – Frequently Asked Questions and Compliance Challenges
Breakfast Briefing Series - FMLA and ADA Compliance – Frequently Asked Questions and Compliance ChallengesJoin two of our Labor, Employment & Immigration Service Group partners, Robert Simandl and Ann Barry Hanneman, for our next Breakfast Briefing to hear the latest on the FMLA. This webcast will summarize recent developments at the federal level and break down the guidance provided by the U.S. Department of Labor (DOL) that every employer needs to know. Our speakers will also explore best practices for employers facing leave-related challenges in 2025.
- Employment Law Developments Affecting Business LeadersEmployment Law Developments Affecting Business Leaders
In Ann Barry Hanneman article, "Employment Law Developments Affecting Business Leaders," published in the May, 2025 issue of the IBAW Magazine she talks about the impact of the of the new administration, discrimination proof standard and disability discrimination.
- Family and Medical Leave Act Claims: Best Practices from Lessons Learned
Family and Medical Leave Act Claims: Best Practices from Lessons LearnedJoin Ann Hanneman at the Marquette Law School Traveling CLE Program in Naples, FL.
Services
Education
Marquette University, J.D., 1989
LeMoyne College, B.S., 1986
Admissions
- Wisconsin