John T. Dey


  • JD, Harvard Law School, 2014
  • AB (Economics), Harvard College, 2008


  • District of Columbia, 2015
  • New York, 2015
  • Massachusetts, 2014

Court Admissions

  • U.S. Court of Appeals for the Seventh Circuit, 2020
  • U.S. Court of Appeals for the District of Columbia Circuit, 2018
  • U.S. District Court for the District of Columbia, 2016

John T. Dey


John Dey joined the litigation department as an associate in 2014.

John’s practice includes internal investigations, complex civil litigation, administrative litigation, health care fraud investigations, anti-corruption due diligence, and development of best practices compliance programs. He also maintains an active pro bono practice, in which he has worked on the landmark marriage equality case Obergefell v. Hodges and other constitutional challenges to federal and state government actions, investigated conditions at a maximum security state prison facility, and represented low-income clients in family law and Social Security benefits matters.

During law school, John served as co-president of HLS Lambda, an editor of the Harvard Civil Rights-Civil Liberties Law Review and Harvard International Law Journal, and a student attorney with the Harvard Defenders, where he represented low-income criminal defendants. Additionally, John has worked with both the Access to Justice Initiative and the Federal Programs Branch of the Civil Division in the U.S. Department of Justice.


  • Assists independent compliance monitor in assessing the sufficiency of anti-bribery compliance controls of an aircraft manufacturer pursuant to a Deferred Prosecution Agreement with the DOJ and SEC.
  • Advised cloud computing company on enhancements to anti-bribery and ethics codes and related employee trainings.
  • Successfully represented a professional association and individual student loan borrowers in an Administrative Procedure Act challenge to the U.S. Department of Education’s administration of the Public Service Loan Forgiveness program.
  • Represented pharmaceutical company in federal and state investigations related to allegations of False Claims Act violations. 
  • Frequently conducts pre- and post-acquisition anti-corruption due diligence for corporate and private equity clients.
  • Represented a hospital in an investigation into False Claims Act liability.
  • Represented a pharmaceutical company in a lawsuit against the FDA, resulting in unprecedented settlement of off-label marketing dispute and the withdrawal of a Warning Letter.
  • Represented an investment adviser in response to SEC subpoena related to investigation into possible insider trading.


  • Co-Author, “Loretta Lynch – The First AG with Serious FCPA Experience,” Law360 (June 4, 2015)
  • JD, Harvard Law School, 2014
  • AB (Economics), Harvard College, 2008
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