Gregory Tsonis

John Augustyn is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property and Patent Law. John, who practices law in Chicago, Illinois, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John is held by other top lawyers in the same geographic and legal practice area.

As a partner in the Intellectual Property practice group, Jeff focuses his work on patent litigation and strategic counseling related to pharmaceutical, chemical, biotechnology, electrical engineering, agricultural and food products. A registered patent attorney with four decades of experience, Jeff has successfully represented both patent owners and patent challengers through all stages of federal litigation and appeals. A significant portion of Jeff’s practice includes advising pharma...

As a corporate attorney working with clients ranging from start-up entrepreneurs to institutional investors and established companies, Jeremy takes a collaborative, client-focused approach to helping clients understand legal and business risks and offers practical guidance to help them achieve their strategic objectives. Jeremy concentrates his practice on counseling investors (including private equity and venture capital funds and angel investors) in connection with their debt and equity inv...

Roger J. Jones represents clients in tax controversy and litigation matters at all levels of the federal court system, before the Internal Revenue Service (IRS), and before various state courts and tax agencies. He has represented taxpayers, including numerous Fortune 500 companies, in more than 80 docketed cases before the US Supreme Court, most of the US courts of appeals, federal district courts, the US Court of Federal Claims and the US Tax Court. Read full biography: https://www.mwe.com/...

Colin Dunn is a highly successful premise liability lawyer, aviation accident attorney, and partner at Clifford Law Offices. He obtained his law degree from Loyola University School of Law in Chicago, graduating magna cum laude. Mr. Dunn was eighth in his class of 169, and served on the Law Journal. During law school, he worked for the Honorable Justice Ann Williams of the Seventh Circuit Court of Appeals as well as for the Honorable Judge Ronald Guzman of the United States District Court for...

For over 50 years, Bruce Sperling has been winning record-breaking and game-changing jury verdicts, court judgments, and arbitration awards for plaintiffs and defendants in high-stakes litigation. Experienced in virtually every area of the law, Mr. Sperling has favorably resolved wide-ranging commercial disputes for Fortune 500 companies, privately held enterprises, and individuals. His cases have included securities, antitrust, patents, trade secrets, corporate governance, real estate develo...

Jonathan A. Rosenfeld is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs and Product Liability Litigation - Plaintiffs. Jonathan A., who practices law in Chicago, Illinois, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jonathan A. is held by other top lawyers in the same geographic and legal practice area.

Adam R. Klein is a top attorney recognized by Best Lawyers in the practice area(s) of Sports Law. Adam R., 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 Adam R. is held by other top lawyers in the same geographic and legal practice area.

Chair of the firm’s Associations and Foundations group, Paula Goedert represents nonprofit organizations, including professional societies, trade associations, public charities and private foundations. Paula offers a depth of experience in guiding nonprofits through the challenges they face, and appreciates the opportunity to help make a difference. Paula serves as general or lead counsel for many national associations that represent prominent economy-drivers, industries and professiona...

As employers increasingly seek to hire and retain talented foreign national employees to maximize competitiveness, Tejas is empathetic to their needs and offers practical immigration law advice. He is committed to guiding employers of all sizes – across a diverse cross-section of industries, including finance, banking, education, transportation, and healthcare – in efficiently and economically sponsoring workers for permanent residency in the United States through Program Electron...