Maureen L. O'Leary

Erica Storm is a Shareholder at von Briesen & Roper, s.c. focusing on employment law and employee benefits law and compliance. Prior to joining von Briesen, Erica was a Senior Director at Zywave where she focused on the integration of HR and compliance products, implemented new technology solutions including AI, and oversaw legal content surrounding employment and employee benefits law.

Beth Kushner is a Shareholder in the Litigation and Risk Management Practice Group. She specializes in complex litigation and has successfully handled a broad range of business and commercial disputes, shareholder disputes, construction matters, antitrust disputes, class actions of all sorts, fraud and RICO cases, employment cases and product liability claims. She has a particular expertise in cases that involve high exposure and difficult facts, and her clients appreciate her creative, pragm...

Stephen Trigg is a lawyer recognized by Best Lawyers in the practice areas of Commercial Litigation and Personal Injury Litigation - Defendants. Stephen practices law in Milwaukee, Wisconsin Best Lawyers has recognized Stephen Trigg since 2024. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Stephen Trigg is held by other lawyers.

Ryan S. Stippich is a shareholder in the firm’s Litigation Practice, as well as a member of the White Collar Litigation and Corporate Compliance Group and Reinhart Institutional Investor Services. He represents clients in a wide range of complex civil and criminal matters at both the trial and appellate levels. Ryan focuses his litigation practice in the areas of securities litigation, shareholder disputes, professional liability litigation, other business torts and class actions. Ryan ...

Timothy P. Reardon is a business lawyer working with a wide array of companies—global, national and regional—in a variety of industries, including manufacturing, construction, service, distribution, health care, real estate and professional associations. Business clients value Tim as a trusted advisor and legal strategist who draws on his vast knowledge and experience base to provide creative, cost-effective solutions for a wide array of complex business and legal issues. Tim is a...

David G. Peterson is a lawyer recognized by Best Lawyers in the practice area of Commercial Litigation. David G. practices law in Waukesha, Wisconsin Best Lawyers has recognized David G. Peterson since 2014. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which David G. Peterson is held by other lawyers.

Brett A. Eckstein is a lawyer recognized by Best Lawyers in the practice areas of Appellate Practice and Personal Injury Litigation - Plaintiffs. Brett A. practices law in Brookfield, Wisconsin Best Lawyers has recognized Brett A. Eckstein since 2019. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Brett A. Eckstein is held by other lawyers.

Background Mr. Prachthauser was born in Milwaukee, Wisconsin, on January 7, 1951. Prior to joining the firm, he was House Counsel for Employers Insurance of Wausau. He is married to Joan Marie, and they reside in Hartland, Wisconsin. He has two daughters, Emily and Tracy. Lectures Mr. Prachthauser is a frequent presenter and speaker for the State Bar of Wisconsin, American Board of Trial Advocates, and Wisconsin Academy of Trial Lawyers. He has been a Civil Trial Practice Instructor at the Un...

Mike Carlton worked as a trial attorney at the U.S. Department of Justice in Washington, D.C., representing the EPA and other government agencies. Thereafter, he worked as a senior attorney and policy analyst with the Environmental Law Institute, and then as Wisconsin counsel for a national environmental organization. Mike has taught and studied environmental law and policy in Washington, D.C., London, and the University of Wisconsin Law School. Mike heads the firm’s Environmental Law P...

Jerome R. Kerkman is a lawyer recognized by Best Lawyers in the practice areas of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law and Commercial Litigation. Jerome R. practices law in Milwaukee, Wisconsin Best Lawyers has recognized Jerome R. Kerkman since 2020. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Jerome R. Kerkman is h...