Rory O'Sullivan

John H. Bradley is a top attorney recognized by Best Lawyers in the practice area(s) of Civil Rights Law and Criminal Defense: General Practice. John H., who practices law in Madison, Wisconsin, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John H. is held by other top lawyers in the same geographic and legal practice area.

Susan Tyndall is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice and Personal Injury Litigation - Plaintiffs. Susan, who practices law in Waukesha, Wisconsin, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Susan 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...

Tony McGrath is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Tony, who practices law in Madison, Wisconsin, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Tony is held by other top lawyers in the same geographic and legal practice area.

Nathan J. Wautier is a top attorney recognized by Best Lawyers in the practice area(s) of Land Use and Zoning Law and Real Estate Law. Nathan J., who practices law in Madison, Wisconsin, has been recognized since 2015. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Nathan J. is held by other top lawyers in the same geographic and legal practice area.

Lynn M. Stathas is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Employee Benefits (ERISA) Law, Employment Law - Management and Labor Law - Management. Lynn M., who practices law in Madison, Wisconsin, has been recognized since 2009. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lynn M. is held by other top lawyers in the same geographic and legal practice area.

Mark Schmidt is a Shareholder in the Litigation and Risk Management Practice Group and Co-Chair of the Construction Law and Litigation Section. Mark helps clients resolve their most challenging and complex problems by focusing on practical solutions and efficient business results. Mark is directly involved in all aspects of negotiation, strategic planning, risk assessment, arbitrations, mediations and court and jury trials in state and federal court. Mark’s broad experience covers all a...

Wendy S. Rusch is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Wendy S., who practices law in Waukesha, Wisconsin, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Wendy S. is held by other top lawyers in the same geographic and legal practice area.

Jerome R. Kerkman is a top attorney recognized by Best Lawyers in the practice area(s) of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law and Commercial Litigation. Jerome R., who practices law in Milwaukee, Wisconsin, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jerome R. is held by other top lawyers in the same geographic and legal practice area.

Ken Hoogstra maintains an extensive employee benefits practice, advising clients on such matters as ERISA compliance for group health, welfare and pension plans, and the design and administration of qualified retirement plans and nonqualified deferred compensation plans. Ken places a particular focus on the implementation, design and administration of employee stock ownership plans (“ESOPs”). He also has significant experience working on executive compensation arrangements, includ...