Mason Baranczyck

John K. Tokarz is a business lawyer whose practice focuses on complex transactions. As a Certified Public Accountant who previously worked as an auditor for a Big Four accounting firm, John understands his clients’ businesses. From startups to publicly traded companies, he provides a full range of transactional and strategic support to clients with matters involving mergers and acquisitions, joint ventures, divestures, securities offerings and other significant corporate transactions. I...

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.

Jim’s practice focuses on representing privately held businesses and their owners on the wide variety of legal matters that may arise. This includes extensive experience with significant corporate transactions such as purchases and sales of businesses, complex contractual matters, and planning for business succession. In his practice, Jim works with clients across a wide range of industries, including fintech, manufacturing, distribution, and professional services. Jim has a unique pers...

Jason leads O’Neil Cannon’s Corporate Practice Group. He advises and represents individuals, businesses, and banks on a variety of corporate, banking, and business-related issues, including mergers and acquisitions, commercial loan transactions, corporate issues, contract negotiation and preparation, and business entity selection and formation. Jason Assists Clients With Mergers and acquisitions Complex commercial loan transactions for lenders and borrowers Corporate matters, incl...

Christine Esser is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs. Christine, who practices law in Sheboygan, Wisconsin, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Christine is held by other top lawyers in the same geographic and legal practice area.

Sumeeta Krishnaney is a member of the Trusts and Estates Section at von Briesen & Roper, s.c. She concentrates her practice on estate planning, including special needs planning and guardianships, charitable estate planning and business succession planning. She focuses on the preparation of trusts, including first and third party special needs trusts, wills, marital agreements, financial powers of attorney, and healthcare powers of attorney. She represents clients in all matters relating t...

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

Andrew Christman is a Shareholder in the Litigation and Risk Management Practice Group at von Briesen & Roper, s.c. He has extensive litigation experience involving matters in numerous state and federal courts across the country. He focuses his practice on toxic tort, product liability, premises liability, and insurance litigation. Andrew also has experience in construction litigation, professional liability, and appellate litigation. Andrew helps clients develop, maintain and implement d...

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...

Michael G. Goller is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Corporate Law, Litigation and Controversy - Tax and Tax Law. Michael G., who practices law in Milwaukee, Wisconsin, has been recognized since 2006. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael G. is held by other top lawyers in the same geographic and legal practice area.