John J. Koenigsknecht

Walt Holzer focuses on complex business transactions, including mergers, acquisitions, buyouts, recapitalizations, divestitures, venture capital and growth equity investing, and executive compensation. He has handled numerous transactions in a wide variety of industries for private equity, family office and strategic clients. Praised by clients for his "pragmatic approach, business acumen and sector knowledge" and his "expertise…and commerciality" and "valuable understanding of the mos...

John M. Popelka focuses his practice exclusively representing public and private sector clients in the area of Workers’ Compensation law. Equally comfortable in the courtroom and at the negotiating table, a significant portion of his practice involves litigating and settling claims for union workers who suffer career-ending injuries, permanent total disability, catastrophic injuries requiring home modification and lifetime medical care, and death cases. John joined Anesi Ozmon in 1993, ...

Patricia Brown Holmes is a highly respected and accomplished lawyer who focuses her practice on high-stakes, “bet-the-company” commercial disputes and litigation; class actions; investigations and white collar criminal defense; environmental, social, and governance issues (ESG) such as diversity audits; and risk, reputation, and crisis management counseling for her wide range of public and private corporate clients. She is the first Black woman to lead and have her name on the doo...

Gary I. Levenstein is a top attorney recognized by Best Lawyers in the practice area(s) of Venture Capital Law. Gary I., who practices law in Chicago, Illinois, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Gary I. is held by other top lawyers in the same geographic and legal practice area.

Catherine (Cate) A. Battin represents clients in state and local tax controversies at the audit, administrative and judicial levels in numerous jurisdictions. She provides national state tax strategies for clients on a full range of state tax issues, including income tax apportionment, nexus, combination and sales tax characterization of products and services. She has defended numerous internet sellers in cases brought under the Illinois False Claims Act alleging fraudulent failures to collec...

John A. Ybarra is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. John A., who practices law in Chicago, Illinois, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John A. is held by other top lawyers in the same geographic and legal practice area.

James J. Lukas, Jr. is Co-Chair of the Chicago Intellectual Property & Technology Practice. He focuses his practice on intellectual property litigation with a particular emphasis on patent litigation and related client counseling. He has experience with complex patent litigation cases in federal district courts throughout the country, including both enforcing patent rights and defending against charges of infringement on behalf of clients. He has first-chaired trials and claim constructio...

Steve Patton is of counsel to the Litigation group in the Chicago office of Kirkland & Ellis LLP. Steve has extensive experience trying cases and arguing appeals in federal and state courts throughout the country in a wide variety of commercial disputes. He has also served as an advisor to senior management in a number of “bet the company” exposures and negotiated several multibillion settlements in complex disputes. Steve is a Fellow of the American College of Trial Lawyers a...

Bradley C. Giglio is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Bradley C., who practices law in Bloomingdale, Illinois, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Bradley C. is held by other top lawyers in the same geographic and legal practice area.

Fredric P. Andes is a partner in the Chicago and Washington, D.C., offices of Barnes & Thornburg and the leader of the firm's water team. Fred is involved in counseling and litigation on issues arising under various federal and state environmental laws, with a special emphasis on Clean Water Act matters. Fred is also advising trade associations, industries, and municipalities on TMDLs, permits, and other water quality matters on the state and federal levels, including development of water...