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Matthew J. Letten
Matthew J. Letten
Partner
Hartford, CT
| (860) 275-0565
Washington, D.C.
| (202) 218-3908

Overview

Matthew "Matt" Letten, a litigator, represents clients in complex business and real estate disputes in federal and state courts and arbitrations. He has substantial experience providing pre-litigation counseling and representing both plaintiffs and defendants in disputes involving allegations of breach of contract, breach of fiduciary duty, fraud, unfair trade practices and land use issues. Matt has advised clients in many industries, including financial services, aerospace, manufacturing, real estate and healthcare. Clients rely on Matt to handle novel and unsettled legal issues. He has briefed numerous appeals in state and federal appellate courts and argued appeals in both the Second Circuit and the Connecticut Supreme Court.

In addition to his work as a litigator, Matt also helps clients respond to and resolve criminal, civil and regulatory investigations brought by federal and state agencies. He regularly defends businesses in government investigations and related litigation involving alleged violations of the False Claims Act (FCA).

Following graduation from Yale Law School, Matt served as a law clerk for the Honorable Thomas L. Ambro of the U.S. Court of Appeals for the Third Circuit and the Honorable Paul S. Diamond of the U.S. District Court for the Eastern District of Pennsylvania. Before joining Day Pitney, Matt practiced law for several years at an international law firm in Washington, DC.

Experience

Represented the plaintiff, a U.S.-based entertainment company, in a multiparty international arbitration involving the breach of a license agreement that resulted in a substantial damages award for the plaintiff, as well as an award of attorney fees and costs

Represented the defendant, a foreign aerospace company, in an international arbitration regarding liability for aircraft engine repairs for multiple aircraft operators

Represented the plaintiff, a family-owned business, in litigation involving breach of fiduciary duty and fraudulent misrepresentation

Defended a telecommunications company against claims of alleged copyright infringement related to the provision of Internet services

Advised a family office regarding claims against Special Purpose Acquisition Companies (SPACs) and successfully negotiated several settlements through pre-suit demands and litigation

Briefed and argued an appeal in the Connecticut Supreme Court regarding the rights of judgment creditors in martial dissolution proceedings

Represented a foreign company in a Second Circuit appeal challenging the constitutionality of state tax regulations

Defended a former CEO of a cryptocurrency company in litigation brought by the Federal Trade Commission (FTC) and the Commodity Futures Trading Commission (CFTC)

Represented a healthcare company in a FCA investigation involving allegations of improper referral payments and medical billing fraud

Education and Credentials

Education

  • Yale Law School, J.D., Yale Law Journal, Notes Editor
  • University of Notre Dame, B.A., magna cum laude, Phi Beta Kappa

Admissions

  • U.S. Supreme Court
  • U.S. Court of Appeals for the Third Circuit
  • U.S. Court of Appeals for the Second Circuit
  • U.S. District Court, District of Connecticut
  • District of Columbia
  • State of Connecticut
  • U.S. District Court, Southern District of New York
  • U.S. District Court, District of Columbia

Recognition and Community

No aspect of this advertisement has been approved by the highest court of any state. Prior results do not guarantee a similar outcome. See Awards Methodology.

Recognitions

Selected to the list of Ones to Watch for Commercial Litigation by The Best Lawyers in America (Woodward/White, Inc.), 2023-2025

Selected to the list of Connecticut Super Lawyers Rising Stars (Thomson Reuters), Civil Litigation, 2020, 2022-2024

Matthew J. Letten Latest News and Insights

January 2, 2025
Day Pitney Announces Elevation of New Class of Partners

Day Pitney Press Release

June 14, 2023
State Legislature Moving Forward on Expansion of False Claims Act

Day Pitney Senior Associate Matthew Letten authored the article, "State Legislature Moving Forward on Expansion of False Claims Act," for Connecticut Law Tribune.

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