Greg Schweizer represents a broad array of domestic and international clients in complex commercial litigation nationwide, antitrust disputes, internal investigations, and international arbitration. He also has pursued a robust pro bono practice, representing victims of hate crimes, fighting to protect voting rights, and providing legal analysis to Mayor Lori Lightfoot’s transition team. Greg has extensive experience taking depositions, working with experts to develop written reports and testimony, and counseling in-house legal teams on both pending litigation and avoiding future disputes or exposure. The firm regularly turns to Greg to draft critical motions and appellate briefs, as well as to advise clients’ executives and board members regarding legal risks and strategy. Clients benefit from Greg’s background working in politics and on Capitol Hill, which gives him instincts regarding public relations and reputational considerations that weigh on potential litigation decisions and positions. Greg also offers clients the perspective of a former judicial law clerk by providing clear-eyed assessments of both the strengths and weaknesses of legal arguments, strategic counsel regarding how certain litigation tactics may play in court, and insights on how judicial decisionmakers may look for narrow ways to resolve complex issues. 

Outside of work, Greg serves as a founding board member of the Chicago Lawyers’ Committee for Civil Rights’ NextGen Leadership Council for Civil Rights, and as a board member of the ACLU of Illinois’ Next Generation Society. Prior to joining the firm, Greg served as a law clerk to the Honorable Cheryl Ann Krause of the United States Court of Appeals for the Third Circuit. Greg and his husband live in Chicago with their son.


Case Experience

  • Defending a group of corporate affiliates in federal court in Delaware against a series of fraudulent transfer actions, in which creditors of a foreign sovereign parent corporation seek to hold affiliates liable based on alleged transfers in excess of $2 billion.
  • Representing a domestic energy company in litigation in federal court in Delaware and the Third Circuit regarding efforts by creditors of the Republic of Venezuela and its state-owned oil company to attach shares of stock of an American subsidiary to satisfy their judgments. This representation has involved issues of foreign sovereign immunity, U.S. Treasury regulations, and Delaware corporate law, including the development of a sale procedure with a special master.
  • Represented defendant companies in numerous antitrust lawsuits, including cases involving allegations of price fixing, supply restrictions, and no-solicitation agreements. Such cases have been brought in federal courts across the country, have involved both direct and indirect purchaser claims, and have been on behalf of both domestic and international clients. Such representations have provided the opportunity to take numerous depositions, analyze foreign antitrust law, and engage with government investigators. These representations have resulted in dismissal of antitrust claims, dropping of government investigations, and favorable settlements.
  • Defending long-term care insurer against four class action lawsuits in which plaintiffs seek to challenge the company’s ability to adjust premiums as necessary to ensure the long-term viability of such policies.
  • Representing clients in international and domestic arbitrations, including disputes regarding an overseas energy construction project and an overseas chemical plant’s provision of steam to tenants.
  • Represented numerous defendants in consumer class actions and toxic tort litigation involving both statutory and common law claims.
  • Represented voting rights organization in Indiana seeking to enjoin a provision of Indiana law that makes it more difficult for voters to secure extensions of polling place hours at voting sites plagued with problems on Election Day.
  • Represented a pharmaceutical company conducting an internal investigation of an alleged breach of company ethics policy related to the vendor selection process for a multi-million dollar project.


J.D., Stanford Law School, 2015

  • Articles Committee Editor, Stanford Law Review

B.A., Washington University in St. Louis, 2011,

  • summa cum laude
  • Phi Beta Kappa

  • Law Clerk to the Honorable Cheryl Ann Krause of the U.S. Court of Appeals for the Third Circuit

  • U.S. District Court for the Northern District of Illinois
  • U.S. District Court for the Southern District of Indiana
  • U.S. Court of Appeals for the First Circuit
  • U.S. Court of Appeals for the Third Circuit
  • U.S. Court of Appeals for the Seventh Circuit
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