Winston & Strawn Welcomes Michael Kimberly as Co-Chair of the Appellate & Critical Motions Practice

Washington, D.C. – May 27, 2025 – Winston & Strawn LLP announced today that Michael Kimberly has joined the firm’s Washington, D.C. office as co-chair of the Appellate & Critical Motions Practice.

Michael brings a remarkable record of success, having argued nine cases before the U.S. Supreme Court and delivered more than 40 appellate arguments in courts across the country, with an overall win record of two for three. In addition to his appellate work, he frequently litigates challenges to federal administrative actions under the Administrative Procedure Act and to state laws and regulations under various provisions of the U.S. Constitution.

“I’m thrilled to join Winston’s Washington D.C. office and to contribute to the value of its appellate and critical motions practice and litigation capabilities overall,” said Michael. “Winston handles an impressive variety of high-stakes litigation cases across a range of legal areas, and I look forward to partnering with its trial teams as well as leveraging my network of clients.”

“We are very excited to welcome Michael as a leader in our appellate practice,” said Litigation Department Co-Chairs Linda Coberly and Tom Melsheimer. “Our clients recognize the value of exceptional appellate advocates. As an accomplished Supreme Court and appellate litigator, Michael will enhance our capabilities in high-profile, mission-critical litigation for our clients across the country. And his skill set is a perfect fit for our D.C. office in particular, given his extensive experience in government-facing and constitutional litigation.” 

Including his work in the district courts, Michael has briefed and argued more than 200 cases covering a wide range of subject matters, including environmental law, the Commerce Clause and related constitutional provisions, various sources of federal preemption, the Medicare Act and related regulations, the Employee Retirement Income Security Act, the First Amendment, copyright, and the Bankruptcy Code.

“As demand continues to grow for appellate lawyers who can shape litigation strategy from the outset, Michael’s experience aligns with our vision for the D.C. office,” said David Rogers, Washington D.C. office managing partner. “His track record of success and his experience in areas central to our clients in this region, including federal regulatory challenges, taxation, ERISA, and healthcare, will be instrumental in strengthening our presence.”