Luke Cass defends corporations and individuals in connection with a variety of federal criminal allegations, including health care fraud, conspiracy, mail and wire fraud, embezzlement, bank fraud, and money laundering. He also conducts proactive, internal investigations related to bribery, misbranding, and the Foreign Corrupt Practices Act (FCPA). Luke served as a federal prosecutor for over a decade and has significant experience with white collar investigations and has litigated federal appellate and district court cases throughout the United States.

Previously, Luke worked as a Senior Trial Attorney with the Public Integrity Section of the U.S. Department of Justice’s Criminal Division where he handled public corruption investigations and prosecutions of elected, appointed, and career government officials. Luke served as an Assistant United States Attorney in the Financial Fraud and Corruption Unit of the U.S. Attorney’s Office for the District of Puerto Rico before working at the DOJ in Washington. In addition to Luke's extensive federal trial experience, he has also briefed and argued numerous appeals before the U.S. Court of Appeals for the First Circuit. He also clerked in the United States District Court for the Eastern District of New York.

As a result of his experience, Luke is well qualified to counsel clients in nearly every aspect of complex white collar matters involving both the public and private sectors.

Representative Experience

Any result the lawyer or law firm may have achieved on behalf of clients in other matters does not necessarily indicate similar results can be obtained for other clients.

Defense and Internal Investigations

  • Representation of an individual charged with wire fraud and RICO offenses in the United States District Court for the Eastern District of New York.
  • Representation of a health care executive charged in a $125 million health care fraud conspiracy in the United States District Court for the Southern District of Florida.
  • Representation of a defendant involving Paycheck Protection Program (PPP) fraud allegations. 
  • Representation of targets or subjects in grand jury proceedings in United States District Courts in Arizona, Florida, Illinois, Massachusetts, Oregon, and Texas.
  • Led corporate investigations on behalf of Fortune 500 and private companies.

Prosecution

  • Trial and conviction of a former senator for wire fraud and embezzlement of federal benefits.
  • Trial and conviction of a defendant relating to a $7.5 million Ponzi scheme and money laundering conspiracy.
  • Trial and conviction of a defendant for obstruction of justice.
  • Investigation and prosecution of corporate and individual defendants for introducing misbranded drugs in interstate commerce in coordination with the U.S. Food and Drug Administration’s Office of Criminal Investigations.
  • Lead counsel in the first hate crime prosecution in federal court in Puerto Rico that involved cyber threats and numerous investigations relating to cybercrimes and digital forensic evidence.
  • Investigation and prosecution of one of the largest healthcare fraud schemes in Puerto Rico.
  • Lead counsel for appeal of an 82-day trial involving a $10 million disaster fraud and bribery conspiracy

Reported Cases

  • Shawnee v. Mnuchin, 984 F.3d 94 (D.C. Cir. 2021)
  • United States v. Rickmon, 952 F.3d 876 (7th Cir. 2020) 
  • United States v. Wayne James, 888 F.3d 42 (3d Cir. 2018)
  • United States v. Castrillon-Sanchez, 861 F.3d 26 (1st Cir. 2017)
  • United States v. Rivera-Izquierdo, 850 F.3d 38 (1st Cir. 2017)
  • United States v. Reyes-Santiago, 804 F.3d 453 (1st Cir. 2015) 
  • United States v. Jimenez-Bencevi, 788 F.3d 7 (1st Cir. 2015)
  • United States v. Dávila-Félix, 763 F.3d 105 (1st Cir. 2014) 
  • United States v. Guzman-Montanez, 756 F.3d 1 (1st Cir. 2014) 
  • United States v. Delgado-Marrero, 744 F.3d 167 (1st Cir. 2014)
  • United States v. Monserrate-Valentin, 729 F.3d 31 (1st Cir. 2013)
  • United States v. Medina-Villegas, 700 F.3d 580 (1st Cir. 2012)
  • United States v. Espinal-Almeida, 699 F.3d 588 (1st Cir. 2012) 
  • United States v. Aponte-Guzman, 696 F.3d 157 (1st Cir. 2012)
  • United States v. Acevedo-Maldonado, 696 F.3d 150 (1st Cir. 2012) 
  • United States v. Lozada-Aponte, 689 F.3d 791 (1st Cir. 2012) 
  • United States v. Ayala-Lopez, 493 F. App’x 120 (1st Cir. 2012)
  • United States v. Dávila-Tapia, 491 F. App’x 197 (1st Cir. 2012)
  • United States v. Díaz, 670 F.3d 332 (1st Cir. 2012) 
  • United States v. Dávila-Nieves, 670 F.3d 1 (1st Cir. 2012) 
  • United States v. Huete-Sandoval, 668 F.3d 1 (1st Cir. 2011) 
  • Gómez-Pérez v. Potter, 452 F. App’x 3 (1st Cir. 2011) 
  • United States v. Dávila-Félix, 667 F.3d 47 (1st Cir. 2011) 
  • United States v. Rodríguez-Rodríguez, 663 F.3d 53 (1st Cir. 2011) 
  • United States v. Ramos-González, 664 F.3d 1 (1st Cir. 2011)
  • Villanueva v. United States, 662 F.3d 124 (1st Cir. 2011) 
  • United States v. Walker, 665 F.3d 212 (1st Cir. 2011) 
  • Carroll v. United States, 661 F.3d 87 (1st Cir. 2011) 
  • United States v. Collazo-Castro, 660 F.3d 516 (1st Cir. 2011) 
  • United States v. De Jesus Viera, 655 F.3d 52 (1st Cir. 2011) 
  • United States v. Nunez-Polanco, 428 F. App’x 13 (1st Cir. 2011)
  • United States v. Rios-Hernandez, 645 F.3d 456 (1st Cir. 2011)
  • United States v. Meises, 645 F.3d 5 (1st Cir. 2011)
  • United States v. Vazquez-Castro, 640 F.3d 19 (1st Cir. 2011)
  • Ramos-Martinez v. United States, 638 F.3d 315 (1st Cir. 2011)
  • United States v. Ayewoh, 627 F.3d 914 (1st Cir. 2010)
  • United States v. Fernandez-Cabrera, 625 F.3d 48 (1st Cir. 2010)
  • United States v. Salas Fernandez, 620 F.3d 45 (1st Cir. 2010) 
  • United States v. Rivera-Rodriguez, 617 F.3d 581 (1st Cir. 2010) 
  • United States v. Rosa-Carino, 615 F.3d 75 (1st Cir. 2010) 
  • Roman-Cancel v. United States, 613 F.3d 37 (1st Cir. 2010) 
  • United States v. Rosado-Perez, 605 F.3d 48 (1st Cir. 2010) 
  • United States v. Rodriguez-Velez, 597 F.3d 32 (1st Cir. 2010)
  • United States v. Alfonzo-Reyes, 592 F.3d 280 (1st Cir. 2010) 
  • United States v. Franquiz-Ortiz, 607 F.3d 280 (1st Cir. 2010)
  • United States v. Perez-Melendez, 599 F.3d 31 (1st Cir. 2010)
  • United States v. Ayala-Garcia, 574 F.3d 1 (1st Cir. 2009)
  • United States v. Correa-Alicea, 585 F.3d 484 (1st Cir. 2009)
  • United States v. Perez-Cruz, 558 F.3d 50 (1st Cir. 2009)
  • United States v. Campusano, 556 F.3d 36 (1st Cir. 2009)
  • United States v. Garcia-Garcia, 354 F. App’x 434 (1st Cir. 2009) 
  • United States v. Carrasquillo-Carmona, 339 F. App’x 1 (1st Cir. 2009)
  • United States v. Rebollo-Andino, 312 F. App’x 346 (1st Cir. 2009) 
  • In re Two Subpoenas to Testify Before a Grand Jury Dated December 1, 2016, Returnable December 27, 2016, 252 F. Supp. 3d 170 (E.D.N.Y. 2017) 
  • United States v. Garcia-Pagan, No. 13-123, 2016 WL 8467757, at *1 (D.P.R. July 18, 2016)
  • United States v. Diaz-Cestary, No. 12-601, 2015 WL 4275716, at *1 (D.P.R. July 14, 2015) 
  • United States v. Rodriguez-Correa, No. 12-245, 2015 WL 2451209, at *1 (D.P.R. May 22, 2015) 
  • Pabon-Mandrell v. United States, No. 11-2233, 2015 WL 1035226, at *1 (D.P.R. Mar. 10, 2015) 
  • United States v. Diaz-Cestary, No. 12-601, 2014 WL 10093660, at *1 (D.P.R. July 14, 2014) 
  • United States v. Jimenez-Bencevi, 934 F. Supp. 2d 360 (D.P.R. 2013) 
  • United States v. Rodriguez-Colon, 979 F. Supp. 2d 203 (D.P.R. 2013) 
  • United States v. Jimenez-Bencevi, No. 12-221, 2013 WL 1429445, at *1 (D.P.R. Apr. 5, 2013)

Professional and Civic Activities

  • Georgetown University Law Center, Adjunct Professor for White Collar Crime and Securities Fraud
  • American Bar Association, White Collar Crime Committee, Member
  • The Federalist Society, Member

Honors and Awards

  • U.S. Department of Justice, Organized Crime Drug Enforcement Task Forces, Recipient, Special Outstanding Investigation Award for Innovation & Multi-Agency Solution to Violent Crime in the Florida/Caribbean Region: Operation Stamp Out, 2020
  • United States Department of Homeland Security, Immigration and Customs Enforcement Director’s Interagency Award Recipient, 2018
  • United States Department of Health and Human Services, Office of Inspector General Award Recipient for Fighting Fraud, Waste, and Abuse, 2018
  • United States Department of Justice, Executive Office for United States Attorneys Director’s Award Recipient for Superior Performance as a Criminal Assistant U.S. Attorney, 2014

Publications and Presentations

Publications

Presentations

  • “The Paycheck Protection Program & COVID-19 Fraud Investigations,” Federal Bar Association, September 2020
  • “Corporate Investigations: Creating Order from Chaos,” American Bar Association, Litigation Section Seminar, June 2020
  • “Conducting Internal Investigations Post-Connolly,” American Bar Association Corporate Counsel Seminar, February 2020
  • “Cryptocurrency Comes of Age: Notable Recent Regulatory Actions and a Look Ahead,” Federal Bar Association, September 2019
  • “Shifting Frameworks. The Privacy and Data Security Patchwork: Federal and State Legal Outlook,” Bloomberg Leadership Forum D.C.: Privacy & Data Security, September 2019

Languages

  • French
  • Spanish