Robert L. "Bob" Gegios

Joseph Gumina is a shareholder at O’Neil Cannon and the Past Chair of O’Neil Cannon’s Labor and Employment Practice Group. Joe is licensed to practice law in the states of Illinois and Wisconsin. Joe has extensive experience representing management in a vast array of employment matters ranging from traditional labor matters involving labor negotiations and unfair labor practice charges to helping employers navigate the complexities of state and federal fair employment laws. ...

Kevin J. Kinney has been practicing labor and employment law since his graduation from Marquette University Law School in 1982. Kevin’s practice centers on all matters arising under the National Labor Relations Act, including union organizing and unfair labor practices brought by or against labor organizations, NLRB proceedings, arbitrations and labor audits. He regularly negotiates collective bargaining agreements that address leading issues such as retiree benefits and wage restructur...

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...

Tom Kammerait is a Shareholder and the Chair of the Business Succession Planning Section. Tom represents businesses on all aspects of their corporate and business needs including transactional matters, tax, general corporate, real estate, technology, and estate planning issues. Tom generates value by helping clients set priorities for enhancing the value of their businesses and identifying risk management strategies, on a tax-efficient basis. He is also a CPA, so his knowledge of accounting g...

Zachary J. Davis is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Insurance and Product Liability Litigation - Defendants. Zachary J., who practices law in Milwaukee, Wisconsin, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Zachary J. is held by other top lawyers in the same geographic and legal practice area.

Rob Teuber is a Shareholder focusing his practice on tax disputes and controversies for clients nationally, regionally and locally. From a national perspective, Rob assists in resolving IRS tax audits, Tax Court litigation, personal liability assessments, tax collection matters, Offers in Compromise and foreign financial account disclosures. From a state and local perspective, he works with clients to address sales, employment, income and property tax controversies. Rob takes great pride in a...

Scott is a member of the firm’s Board of Directors, serves as Managing Shareholder of the Metro-Milwaukee offices, and chaired the Corporate and Business Law Team for eight years. He has been named a leading Wisconsin business transactions and corporate attorney by Law & Politics and Milwaukee Magazine for multiple years. Scott represents a wide variety of businesses and their owners, senior management, investors and lenders in mergers and acquisitions, divestitures, business succes...

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...

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...

Christy Brooks serves as Counsel to the firm where she focuses on school and family law, and litigation techniques. Her previous work for school districts had a special emphasis on state and federal laws affecting pupil matters including discipline and special education. In the family law area, in addition to divorce and paternity, her work included Collaborative Divorce cases. Her civic activities have included: Board of Directors: Wisconsin Equal Justice Fund, Greater Milwaukee Voluntary Ac...