ChristinaMastrucci Lehn


Miami + 1.305.714.9731

Christina Mastrucci Lehn represents and advises clients on a variety of complex civil matters in state and federal courts. She has experience in all aspects of litigation, particularly in pleadings, pretrial motions (including oral argument), discovery (including taking and defending depositions), trial preparation, and trial (including oral argument and witness examination), as well as in appellate matters. Her practice involves business torts (such as fraud, breach of fiduciary duty, trade secret misappropriation, and tortious interference), breach of contract, accounting claims, deceptive trade practices, and consumer credit disputes.

Christina also has experience representing clients in civil investigations by government entities, particularly state attorneys general and other state agencies, the U.S. Department of Justice (DOJ), and the Federal Trade Commission (FTC).

Christina has participated in numerous Jones Day pro bono projects. She is actively representing refugees from Central America in immigration proceedings as part of the Firm's Border Project and Unaccompanied Children Project, and she has prosecuted 42 U.S.C. § 1983 and related state law claims for use of excessive force.


  • Incarcerated pro bono client secures monetary settlement in civil rights action against law enforcement officersJones Day secured a monetary settlement for an incarcerated pro bono client who brought claims against law enforcement officers for excessive force under 42 U.S.C. § 1983 and related state law.
  • Nuclear Energy Institute defeats NextEra Energy lawsuit claiming rights to NEI’s member-only data systemJones Day obtained a significant victory on behalf Nuclear Energy Institute, Inc. ("NEI"), a trade association for companies involved in the generation and application of nuclear power.
  • Investors resolve dispute with claimed inventor of low energy nuclear reaction deviceJones Day represented an investment company, two alternative energy technology companies, and two executives in connection with litigation brought by Andrea Rossi and Leonardo Corporation.
  • Asylum granted to unaccompanied minors from GuatemalaJones Day successfully represented sisters K.C. and K.S., two unaccompanied minors from Guatemala, in obtaining asylum utilizing a novel "Cinderella" theory.
  • ResMed successfully resolves antitrust litigation brought by competitorJones Day represented ResMed Corp. in connection with antitrust litigation brought by 3B Medical, Inc. alleging monopolization and exclusive dealing.
  • Major multinational corporation undergoes internal investigation into accounting fraud and corruptionJones Day conducted an internal investigation into alleged accounting fraud and corruption in the international operations of a major publicly traded multinational corporation.