Daniel M. "Dan" Janssen

Doug Dehler is a shareholder with the law firm of O’Neil, Cannon, Hollman, DeJong & Laing S.C., where he leads the firm’s Class Action and False Claims Act practice. Mr. Dehler’s practice focuses primarily on high-stakes, complex litigation, including class action lawsuits and whistleblower (qui tam) cases. Mr. Dehler also represents healthcare providers and business clients in insurance matters, including disputes with health insurance companies and managed care payors....

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...

Daniel A. Kaminsky is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Daniel A., 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 Daniel A. is held by other top lawyers in the same geographic and legal practice area.

Jennifer L. Ciralsky is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. Jennifer L., 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 Jennifer L. is held by other top lawyers in the same geographic and legal practice area.

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.

Blake A. Knickelbein is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Blake A., who practices law in Waukesha, Wisconsin, has been recognized since 2027. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Blake A. is held by other top lawyers in the same geographic and legal practice area.

Joe is the chair of the firm’s Litigation Practice Group. He manages a variety of complex cases involving software class actions, real estate, products liability, banking, intellectual property, and anti-trust matters. He has extensive experience representing both large and small plaintiffs and defendants in challenging civil litigation. He has been selected as a member of the Wisconsin Super Lawyers for six years in a row. Prior to joining O’Neil Cannon, Joe was an associate at t...

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...

Attorney Matthew Fernholz focuses his practice on commercial litigation, trust and fiduciary disputes, business torts, trade secrets, non-compete agreements, defamation, and appellate work. In addition, he has developed one of the preeminent political and election law practices in the State of Wisconsin, and has handled several high-profile matters, from representing candidates for statewide office, successfully challenging the Governor’s emergency powers, arguing before the Wisconsin E...

Bill Taibl has experience in nearly all areas of financial institution representation and in a wide variety of real estate related matters. He provides counsel on law and regulatory compliance issues related to consumer and operational matters, including Truth in Lending, RESPA and ECOA, required Board policies, branching activities, new product development and subsidiary transactions. He has handled major troubled loan workouts in Wisconsin and around the country. He has been involved in a w...