People: Cliff Fonstein, Partner

Photo of Cliff Fonstein, Partner

Cliff Fonstein

Partner

New York
Direct: (212) 218-3392
Fax: (917) 344-1327
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Cliff Fonstein is a partner in the Labor & Employment Department and a member of Seyfarth Shaw’s national Whistleblower Team as well as its Financial Services Employment Practice Team.  Mr. Fonstein has litigated all types of employment cases for Fortune 500 companies, from single-plaintiff whistleblower and discrimination claims to large class actions. He has also provided advice to financial services, manufacturing and media companies, pertaining to training, terminations, compensation, and other employment-related issues and has represented these clients in state and federal court and before FINRA arbitration panels. 

Recent Activity:

  • Provides day-to-day advice to major Wall Street firms and represents them in all types of employment litigation in federal and state courts as well as before FINRA arbitration panels
  • Won a defense judgment in a multimillion Whistleblower claim before FINRA on behalf of a Wall Street Employer involving claims surrounding the creation and management of CDOs
  • Won a defense judgment in a multimillion Whistleblower FINRA claim for a Wall Street employer involving the Head of Equity Derivatives and claims that the VIX book was manipulated
  • Won a defense judgment for a Wall Street employer in a Whistleblower FINRA claim alleging that the Head of ETT Trading was terminated for raising concerns about the payment of foreign taxes
  • Won a defense judgment in a multimillion dollar Whistleblower FINRA claim and successfully defended the decision on appeal
  • Won a defense judgment in a multimillion dollar arbitration claim for a Wall Street client brought by the Head of Derivatives sales
  • Won summary judgment in a same sex sexual harassment claim involving a senior management employee
  • Won summary judgment in a bonus dispute involving a key investment manager
  • Defended an airline in an ADA class action claim, defeating class certification
  • Successfully defended a major financial institution in a trade secret, duty of loyalty claim involving the claimed misappropriation of a key financial formula
  • Successfully represented a major employer in a class action involving the sex and age discrimination claims of over 10,000 employees
  • Conducted a sensitive investigation of a senior executive at a Fortune 100 company who was accused of sexual harassment

Cliff Fonstein is a partner in the Labor & Employment Department and a member of Seyfarth Shaw’s national Whistleblower Team as well as its Financial Services Employment Practice Team.  Mr. Fonstein has litigated all types of employment cases for Fortune 500 companies, from single-plaintiff whistleblower and discrimination claims to large class actions. He has also provided advice to financial services, manufacturing and media companies, pertaining to training, terminations, compensation, and other employment-related issues and has represented these clients in state and federal court and before FINRA arbitration panels. 

Recent Activity:

  • Provides day-to-day advice to major Wall Street firms and represents them in all types of employment litigation in federal and state courts as well as before FINRA arbitration panels
  • Won a defense judgment in a multimillion Whistleblower claim before FINRA on behalf of a Wall Street Employer involving claims surrounding the creation and management of CDOs
  • Won a defense judgment in a multimillion Whistleblower FINRA claim for a Wall Street employer involving the Head of Equity Derivatives and claims that the VIX book was manipulated
  • Won a defense judgment for a Wall Street employer in a Whistleblower FINRA claim alleging that the Head of ETT Trading was terminated for raising concerns about the payment of foreign taxes
  • Won a defense judgment in a multimillion dollar Whistleblower FINRA claim and successfully defended the decision on appeal
  • Won a defense judgment in a multimillion dollar arbitration claim for a Wall Street client brought by the Head of Derivatives sales
  • Won summary judgment in a same sex sexual harassment claim involving a senior management employee
  • Won summary judgment in a bonus dispute involving a key investment manager
  • Defended an airline in an ADA class action claim, defeating class certification
  • Successfully defended a major financial institution in a trade secret, duty of loyalty claim involving the claimed misappropriation of a key financial formula
  • Successfully represented a major employer in a class action involving the sex and age discrimination claims of over 10,000 employees
  • Conducted a sensitive investigation of a senior executive at a Fortune 100 company who was accused of sexual harassment

Education

  • B.A., University of California, Berkeley (1979)
  • J.D., University of California, Los Angeles, School of Law (1983)

Admissions

  • New York

Courts

  • U.S. Court of Appeals, 4th Circuit
  • U.S. Court of Appeals, 7th Circuit
  • U.S. Court of Appeals, 9th Circuit
  • U.S. District Court, Eastern District of California
  • U.S. District Court, Northern District of California
  • U.S. District Court, Central District of California
  • U.S. District Court, District of Columbia
  • U.S. District Court, Eastern District of New York
  • U.S. District Court, Northern District of New York
  • U.S. District Court, Southern District of New York