Skip to content Mercedes Colwin


New York
One Battery Park Plaza
28th Floor
New York, NY 10004

Long Island
626 RXR Plaza
West Tower, 6th Floor
Uniondale, NY 11556

Florham Park
18 Columbia Turnpike
Suite 220
Florham Park, NJ 07932


J.D., Brooklyn Law School

B.A., English, New York University


Super Lawyers® distinction in Employment & Labor, Professional Liability, Personal Injury (2007-2023)

“Six Most Influential Women in America,” Forbes Business American Airlines

Graciela Olivarez Award for outstanding achievement as a leading Hispanic lawyer, Notre Dame Law School

"Alumni Achievement Award," The Brooklyn Law School Latin American Law Students Association


  • Spanish

Mercedes Colwin, a highly successful trial attorney, is the founding partner of GRSM’s New York City Office. She handles a wide variety of litigation, including employment law, commercial litigation, class actions, products liability, professional liability, wage and hour class actions, defamation and related First Amendment claims, civil rights violations and criminal law.

Mercedes has defended thousands of cases throughout the country to a favorable result and won over ninety percent of her numerous trials and arbitrations. She regularly litigates business disputes and defends corporations and executives of Fortune 500 companies accused of wrongdoing, including claims of sexual misconduct. 

Prior to private practice, Mercedes served as an Administrative Law Judge for the New York State Division of Human Rights. During these nine years of service, while a partner at a major regional New York law firm, she presided over three thousand cases brought under federal and state discrimination laws.

Mercedes has received several significant honors. Forbes Business American Airlines named Mercedes one of the six most influential women in America.  The list includes dignitaries such as former U.S. Secretary of State Madeleine Albright. Notre Dame Law School presented Mercedes with the prestigious Graciela Olivarez Award for outstanding achievement as a leading Hispanic lawyer of the highest ethical and moral standards. Supreme Court Justice Sonia Sotomayor received the same award.  MultiCultural Law magazine also profiled Mercedes in a Leadership Interview titled, Reaching Back to Diversify the Legal Professional. Human Resources Magazine named Mercedes as one of the Nation’s Most Powerful Rising Employment Attorneys. Law Dragon selected Mercedes as one of the leading corporate employment lawyers in the country.  This distinction celebrates her illustrious and exceptional contributions to the legal profession.  

Widely regarded as a top national legal analyst, she regularly appears on television to discuss critical legal issues affecting the nation. 


  • New York
  • U.S. District Courts, New York
  • U.S. Court of Appeals for the Second Circuit
  • U.S. Supreme Court 


  • DRI-The Voice of the Defense Bar
  • Professional Liability Underwriting Society
  • New York State Bar Association
  • American Bar Association
  • National Association of Insurance Women
  • New York County Lawyers Association
  • The Federation of Defense & Corporate Counsel
  • Council on Litigation Management
Publications & Presentations