Nathan Oesch

Nate Johnson is a Shareholder and Co-Chair of the General Litigation Section. His practice focuses on insurance defense claims, product liability, toxic tort, strategic risk and crisis management. Nate has successfully tried numerous cases to verdict throughout Wisconsin. Nate has significant experience litigating cases in the following areas: Products liability Insurance coverage Business/Commercial disputes Construction Personal injury Wrongful Death Premise liability Professional liability

Philip Tallmadge is a lawyer recognized by Best Lawyers in the practice areas of Litigation - Insurance, Personal Injury Litigation - Defendants and Product Liability Litigation - Defendants. Philip practices law in Milwaukee, Wisconsin Best Lawyers has recognized Philip Tallmadge since 2025. 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 Philip Tallmadge ...

Martin J. McLaughlin is a lawyer recognized by Best Lawyers in the practice areas of Artificial Intelligence Law and Corporate Law. Martin J. practices law in Milwaukee, Wisconsin Best Lawyers has recognized Martin J. McLaughlin since 2010. 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 Martin J. McLaughlin is held by other lawyers.

Jason is a Shareholder at O’Neil Cannon where he leads the firm’s Corporate Practice Group and serves on the firm’s Board of Directors. With more than 15 years of experience, Jason primarily focuses on mergers and acquisitions. In this role, he represents buyers and sellers, including mature companies, family offices, wealthy individuals who aspire to acquire a business, and private equity groups. In addition to his M&A practice, Jason works closely with his corporate cl...

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...

Mike Wirth is a Shareholder in the Litigation and Risk Management Practice Group at von Briesen & Roper, s.c. Mike is a seasoned trial attorney with more than 30 jury trials across Wisconsin. He focuses his practice on professional liability, insurance coverage litigation and appellate representation. Mike has extensive experience handling professional liability claims against attorneys, law firms, accountants, accounting firms and medical professionals. His insurance coverage practice in...

Michael J. Gentry is a lawyer recognized by Best Lawyers in the practice areas of Employment Law - Management and Litigation - Labor and Employment. Michael J. practices law in Milwaukee, Wisconsin Best Lawyers has recognized Michael J. Gentry since 2026. 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 Michael J. Gentry is held by other lawyers.

Anthony J. Handzlik is a lawyer recognized by Best Lawyers in the practice area of Corporate Law. Anthony J. practices law in Milwaukee, Wisconsin Best Lawyers has recognized Anthony J. Handzlik since 2012. 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 Anthony J. Handzlik is held by other lawyers.

Jim’s practice focuses on representing privately held businesses and their owners on a wide variety of legal matters. In particular, he has extensive experience guiding clients through significant corporate transactions, including the purchase and sale of businesses, complex contractual matters, and planning for business succession. Jim works with clients across a wide range of industries, including manufacturing, distribution, fintech ,and professional services. Jim has a unique perspe...

Lydia Chartre earned her bachelor’s degree in Business Administration from Carthage College and her Juris Doctor from Marquette University Law School. She practices with Kaman & Cusimano LLC in Milwaukee, Wisconsin, where she focuses on Litigation – Construction, Litigation – Real Estate, and Real Estate Law. Lydia regularly advises condominium and community association boards on a wide range of legal matters, including declaration and bylaw amendments, assessment collec...