Karen G. Zimmermann

Brian G. Carroll is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Brian G., who practices law in Waukesha, Wisconsin, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Brian G. is held by other top lawyers in the same geographic and legal practice area.

Kelly Noyes is a Shareholder and co-Chair of the Class Actions Section. Kelly has significant experience in complex business litigation, particularly in the areas of ERISA and health care billing and collections. Kelly pairs her knowledge of the law with a passion for understanding her clients’ businesses, so she can achieve cost-effective resolutions to clients’ problems, both in and out of the courtroom. She has particular experience in the ERISA, benefits, and health care secto...

Keith E. Kopplin is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Keith E., who practices law in Milwaukee, Wisconsin, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Keith E. is held by other top lawyers in the same geographic and legal practice area.

Chad is a shareholder and member of the firm’s Business Law Practice Group. His practice focuses on working with privately held businesses and their owners, acting as corporate counsel to help them with the various legal issues they face in operating and expanding their businesses. As part of his practice, Chad has considerable experience in Mergers & Acquisitions and frequently works with businesses on ownership transition events. He prides himself on providing efficient, practical...

Benjamin R. Prinsen is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Benjamin R., who practices law in Milwaukee, Wisconsin, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Benjamin R. is held by other top lawyers in the same geographic and legal practice area.

Benjamin S. Wagner is a shareholder at the firm and has been a member of the firm since 2003. He graduated magna cum laude from the University of Wisconsin Law School in 2003 and also received the Phillips Owens Memorial Scholarship for outstanding academic achievement and community service. Mr. Wagner has successfully tried numerous cases throughout southeastern Wisconsin. Due to his significant trial experience and success, he has been certified as a Civil Trial Specialist by the National B...

Randy Nelson is a Shareholder focusing his practice on estate planning, advising family businesses, tax planning, trust administration and probate. He is a Certified Public Accountant and was an Adjunct Professor at Marquette University Law School where he taught estate planning for over 30 years. He is a frequent speaker at continuing education courses for lawyers and CPAs on the subjects of estate planning and tax planning. He is the author of the chapter “Estate Planning for Owners o...

William Keeler is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Litigation - Construction, Mass Tort Litigation / Class Actions - Defendants and Product Liability Litigation - Defendants. William, who practices law in Milwaukee, Wisconsin, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which William is held by other top lawyers in the same geographic and legal practice a...

James Barton is the founding shareholder of Barton Legal S.C. Mr. Barton was formerly a partner at Hansen Reynolds LLC—a premier litigation boutique with offices in three states. Prior to his time at Hansen Reynolds, Mr. Barton was an associate in the litigation practice group at Michael Best & Friedrich LLP, one of Wisconsin’s oldest and largest law firms. Mr. Barton concentrates his practice on aggressively litigating complex commercial disputes venued in state and federal c...

Bruce T. Block is a top attorney recognized by Best Lawyers in the practice area(s) of Land Use and Zoning Law and Real Estate Law. Bruce T., who practices law in Milwaukee, Wisconsin, has been recognized since 1993. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Bruce T. is held by other top lawyers in the same geographic and legal practice area.