Dorris V. Daniel

Daniel V. Dorris


  • University of Chicago Law School, J.D., high honors, 2010
    • Order of the Coif
    • John M. Olin Law & Economics Fellow
    • Kirkland & Ellis Scholar
    • Executive Topics & Comments Editor, University of Chicago Law Review, 2009-2010
  • University of Illinois, B.S., highest honors, 2006
    • Barry M. Goldwater Scholar


  • Law Clerk, Judge Gary S, Feinerman, U.S. District Court, Northern District of Illinois, 2011-2012
  • Law Clerk, Judge Pamela Rymer, U.S. Court of Appeals, Ninth Circuit, 2010-2011


  • 2011, Illinois
  • 2013, District of Columbia

Dan Dorris represents both plaintiffs and defendants in complex civil, antitrust, and securities litigation.  At the trial level, Dan handles every phase of litigation, from complaints to arguing dispositive motions and at trial.  At the appellate level, he has briefed and argued cases in multiple courts of appeals.

Dan has particular experience in antitrust, securities, and multi-district litigation.  He represented the National Credit Union Administration in its securities litigation arising from the Great Recession, which recovered $5.1 billion, and the State of Florida in its opioid litigation, which recovered $3.6 billion.  Dan has represented clients in antitrust litigation brought by the Department of Justice and the Federal Trade Commission, and has represented telecommunications clients in regulatory proceedings before the Federal Communications Commission.

Representative Experience

  • Represented the National Credit Union Administration in a series of lawsuits against major financial institutions regarding the sale of residential mortgage-backed securities.  The suits were filed in three federal district courts and generated multiple appeals to three U.S. Courts of Appeals.  Dan was involved in all aspects of the litigation, including drafting the complaints, briefing dispositive motions and appeals, taking and defending fact and expert depositions, and managing discovery.  More than $5.1 billion has been recovered. 
  • Served as counsel for State of Florida in a lawsuit against opioid manufacturers, distributors, and dispensers, alleging that these defendants contributed to the opioid crisis in Florida. The case settled during the fourth week of trial, at which point Florida had recovered more than $3.5 billion from the defendants. State of Florida v. Purdue Pharma, L.P., et al.
  • Represented clients as plaintiffs and defendants in multiple antitrust suits, including Meta in the FTC’s ongoing monopolization action, FTC v. Meta Platforms, Inc. (D.D.C.), several plaintiff corporations in an ongoing MDL concerning a horizontal antitrust conspiracy, In re DMS Antitrust Litigation (N.D. Ill.), AT&T in United States v. AT&T Inc. (D.D.C.), Meta in Social Ranger LLC v. Facebook, Inc. (D. Del.), and the National Credit Union Administration in In re LIBOR Antitrust Litigation (S.D.N.Y.).
  • Atchley v. AstraZeneca UK Limited, No. 17-cv-02136 (D.D.C.).  Represents U.S. service members, civilians, and their families in a terrorism lawsuit against Johnson & Johnson, Pfizer, GE Healthcare, AstraZeneca, and Roche for bribing Jaysh al-Mahdi terrorists in Iraq.  Obtained unanimous D.C. Circuit opinion reversing dismissal of claims.
  • GAMCO Asset Management Inc. v. Clear Channel Outdoor Holdings, et al. (Del. Ct. of Chancery).  Represented iHeartCommunications, Inc. and its private equity sponsors in derivative litigation brought by shareholders of Clear Channel Outdoor Holdings (“CCOH”) challenging certain CCOH financing transactions, the declaration of dividends, and inter-company arrangements.  Obtained dismissal of the complaint.
  • Successfully briefed and argued against an appeal brought by two groups of objectors to a class-action settlement agreement.  The settlement agreement concerned overpayments for motor fuel and resolved more than eight years of multi-district litigation.  See In re Motor Fuel Temperature Sales Practices Litigation, 872 F.3d 1094 (10th Cir. 2017).
  • Briefed and argued a pending appeal as court-appointed counsel on behalf of a criminal defendant whose trial transcript was lost, depriving him of the ability to appeal errors at his trial.  See Bush v. Florida, No. 14-12532 (11th Cir.).
  • Represented multiple telecommunications clients in regulatory proceedings regarding mobile phone security, retransmission disputes, satellite authorizations, and rulemakings regarding set-top cable boxes.


  • Law360 Rising Star in Securities Litigation (2018)