Dennis Blumenfeld

Phillips & Cohen associate Dennis Blumenfeld uses his expertise in consumer protection investigations and securities fraud on behalf of Phillips & Cohen’s whistleblower clients.

Dennis Blumenfeld, an associate with Phillips & Cohen, works on whistleblower cases involving the False Claims Act and financial frauds before the Securities and Exchange Commission and the Commodity Futures Trading Commission.

Mr. Blumenfeld comes to Phillips & Cohen from the Office of the Attorney General for the District of Columbia where he served as the Charles F.C. Ruff Fellow. At the Attorney General’s office, he worked on a variety of investigations and litigation on behalf of the District of Columbia. Mr. Blumenfeld is an expert on the District of Columbia’s Consumer Protection Act and has assisted the D.C. Attorney General in investigations and policy matters.

Previously, Mr. Blumenfeld served as a law clerk for the Maryland Office of the Attorney General and served as a legal intern at the Center for Justice and Accountability in San Francisco.

Mr. Blumenfeld received his law degree from Georgetown University Law Center and a Master of Arts in Latin American Studies from Georgetown as well. He is fluent in Spanish and proficient in Portuguese.

Mr. Blumenfeld is admitted to the bar in the District of Columbia and Maryland.


  • “Tornando-se aliados-chave na luta contra a corrupção: O papel dos whistleblowers nos EUA,” Migalhas, April 30, 2024.
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