Michael A. "Mike" Jaskolski

Agatha K. Raynor is a shareholder with Crivello, Nichols & Hall. She concentrates her practice in employment law and regularly advises clients on compliance, best practices and risk management in all areas of employment law, including: accommodation of disabilities; addressing harassment complaints; reductions in force; separation agreements; and implementing effective employment policies and practices. Agatha also defends private and public employers in employment-related litigation befo...

Pat is a shareholder and Chairman of the board of Crivello, Nichols & Hall. With state and federal practice throughout Wisconsin, he has demonstrated expertise in professional liability, commercial litigation, construction disputes, insurance coverage issues and personal injury litigation. Maintaining the highest possible rating in both legal ability and ethical standards, he has achieved the AV Preeminent Martindale Hubbel Award, was invited into the Federation of Defense and Corporate C...

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...

Bill Ehrke is a shareholder with Crivello Carlson, S.C. Bill’s civil litigation practice focuses on the defense of corporations, insurers, municipalities, creditors, lenders, and repossession agents, with emphasis on personal injury defense, first party property insurance investigations and bad faith defense, the defense of lenders and repossession agents in Wisconsin Consumer Act and Fair Debt Collection Practices Act claims, third party casualty insurance defense, municipal civil righ...

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

Pat Bergin is a registered Patent Attorney with the United States Patent and Trademark Office. He is the chair of the Information Technology, Data Privacy and Security Section at von Briesen & Roper, s.c. and regularly assists clients with a broad range of intellectual property issues with an emphasis on domestic and international intellectual property procurement, including: drafting and prosecuting utility and design patent applications in the mechanical, electro-mechanical and medical ...

Mary is a shareholder with Crivello, Nichols and Hall, S.C. and is a member of the firm’s Board of Directors. For over 35 years, Mary has defended lawsuits in state and federal courts in Wisconsin, and has extensive experience consulting with and representing private and municipal employers in state and federal matters before the Equal Rights Division and Equal Employment Opportunity Commission. She consults with and advises clients on matters regarding personnel policies, practices and...

Nick G. Kotsonis has been a shareholder with the firm since 1999 and was appointed to the Board of Directors as of January 1, 2014. His practice areas include employment litigation/worker’s compensation, business and commercial litigation, insurance coverage litigation, personal injury, premises liability, environmental/toxic tort claims and risk management.

David G. Peterson is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. David G., who practices law in Waukesha, Wisconsin, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David G. is held by other top lawyers in the same geographic and legal practice area.

William R. Cummings is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. William R., who practices law in Milwaukee, Wisconsin, has been recognized since 2010. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which William R. is held by other top lawyers in the same geographic and legal practice area.