Lee A. Williams

Dean E. Parker is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Dean E., 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 Dean E. is held by other top lawyers in the same geographic and legal practice area.

Karl Barnickol takes pride in providing practical litigation advice tailored to meet client-specific goals and counseling clients on best practices for business growth and litigation avoidance. His litigation practice focuses on defending complex mass tort and class action cases, including products and publisher liability matters, securities fraud and shareholder derivative litigation, and price-fixing and unfair competition claims. In particular, Karl has significant experience representing ...

Stephen Wu is a nationally recognized antitrust lawyer who focuses his practice on defending antitrust litigation in federal courts around the country, defending mergers and acquisitions before the Federal Trade Commission (FTC), the United States Department of Justice (DOJ) Antitrust Division and State Attorneys General and counseling clients on antitrust compliance issues. Read full biography: https://www.mwe.com/people/wu-stephen/

Julia Mano Johnson is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Julia Mano, who practices law in Chicago, Illinois, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Julia Mano is held by other top lawyers in the same geographic and legal practice area.

David Heiss is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law and Litigation - Insurance. David, 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 David is held by other top lawyers in the same geographic and legal practice area.

Bill Welke focuses his practice on the tax aspects of complex business transactions and entities, including: mergers, acquisitions, and leveraged buyouts; venture capital and other private equity investments; formation of private equity funds; joint ventures and partnerships; workouts and restructurings; tax contests and controversies. Described as having “encyclopedic knowledge of tax structuring strategies” and “adept at cross-border international tax planning in the conte...

Jonathan Marks helps clients — often large insurers — develop investigation, claims handling and litigation strategies to detect, prevent and deter fraud. As an Assistant US Attorney, Jonathan tried numerous federal jury trials and argued appeals before the US Court of Appeals. As a lawyer in private practice, Jonathan has handled hundreds of insurance fraud investigations and dozens of fraud litigation matters. At every stage of counseling, investigation, litigation and in court,...

William (Bill) J. Butler focuses his practice on estate planning and probate administration matters. Bill counsels family groups and individuals on all aspects of wealth transfer planning, with an emphasis on formulating estate plans that maximize and protect wealth while minimizing transfer taxes. Bill is the global head of McDermott’s Private Client Group and is a member of the Firm’s Management Committee. Bill represents many large, multigenerational family groups, and also adv...

David J. Gold is a top attorney recognized by Best Lawyers in the practice area(s) of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law. David J., who practices law in Chicago, Illinois, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David J. is held by other top lawyers in the same geographic and legal practice area.

Seth is a partner in the firm’s Corporate & Securities practice group. Seth focuses his practice on representing large and middle market private equity and venture funds and privately and publicly owned companies in a wide variety of domestic and cross-border complex business transactions. These include mergers & acquisitions, divestitures, leveraged buyouts, venture capital investments, carve-out transactions, joint ventures, start-up financing, growth capital investments and c...