Eliel Flores is an associate at Mayer Brown's Washington DC office and a member of the Financial Services Regulation & Enforcement practice. Eliel has worked onsite in locations including Switzerland and the Caribbean, representing major Canadian, French, Spanish and Swiss financial institutions, and their local subsidiaries, subject to or anticipating investigations or inquiries by the Department of Justice (DOJ). He has advised clients on their implementation of the Foreign Account Tax Compliance Act (FATCA) and on compliance with the Program for Non-Prosecution Agreements or Non-Target Letters for Swiss Banks (the Swiss Program) administered by the DOJ. He has played a leading role in related internal investigations at major financial institutions, including reviewing and supervising review of US-related accounts, interviewing bank executives and relationship managers, meeting with management to discuss policies, and advising client banks on how to pursue appropriate remediation measures. As a fluent Spanish speaker Eliel had first chair responsibility for material portions of one of the investigations mentioned above that involved a Spanish bank. He also prepared detailed reports and PowerPoint presentations for the DOJ and met with the DOJ (Tax Division) to discuss settlement terms and to successfully negotiate final non-prosecution agreements.

In addition, Eliel represented a major global insurance company with all phases of trial preparation for a complex breach of contract litigation concerning the client’s acquisition of a subsidiary in Mexico. This included analyzing the adequacy of Mexican insurance reserves and preparing detailed reports, as well as drafting interrogatory response.

Eliel has also played a key role in negotiating and drafting transactional documents for public and private mergers and acquisitions, and private financings. Including, providing subsequent ongoing strategic corporate advice and filing Securities and Exchange (SEC) reports.


Columbia University, BA

UCLA School of Law, JD


  • California
  • Not admitted in the District of Columbia. Practicing under the supervision of firm principals.