Skip to content Erik DiMarco


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


J.D., New England School of Law, 1997

B.A., Political Science, University of Hartford, 1994


Super Lawyers® distinction (2013-2018)

Super Lawyers® Rising Star distinction (2011-2012)


Erik DiMarco maintains a national litigation practice in toxic tort, product liability, general liability and environmental litigation matters. As national, coordinating and/or supervising counsel, Erik handles litigation for numerous Fortune 500 and privately held corporations in numerous jurisdictions throughout the U.S. His unique experience defending U.S. government contractors and associated military defense operations has enabled him to develop specialized experience and viewpoints towards defending all of his clients, which include premise owners, product manufacturers, suppliers and distributors.

Erik has extensive experience in handling the defense of complex matters including toxic exposure claims, involving mold, latex and chemicals; sick building claims; general liability and premises liability claims including elevator and escalator defense, as well as environmental contamination and coverage.  In his representation of a large real estate investment trust in New York City, Erik defended hundreds of cases involving stair, elevator and burn injuries.  Erik also handles general liability escalator claims for Tishman Construction.   In many cases, he has worked with his corporate clients to develop information as to their historical product lines and subsidiary acquisition, analyzing historical asset and liability transfer agreements and successor liability issues.

Many of Erik’s engagements involve the representation of manufacturers of military aircraft and submarines, as well as operators of nuclear training facilities, in the direct defense of claims related to the use of asbestos materials. He specializes in the impact of litigation discovery on national security and federal law compliance considerations. On these matters, he regularly collaborates with U.S. Navy officers as well as specialists in the area of compliance with federal regulations including the International Traffic in Arms Regulations (ITAR), Atomic Energy Act and the Arms Export Control Act.

Prior to joining GRSM, Erik was a partner in a national law firm, leading its Toxic Tort, Environmental & Energy Practice in New York. In 2016, Erik and his partner, Virginia Squitieri, accepted an invitation to join GRSM, bringing along numerous clients as well their team of associates, paralegals and support staff.


  • New York
  • Connecticut
  • Massachusetts
  • U.S. Supreme Court
  • U.S. District Court, Southern, Western, Eastern, and Northern Districts of New York
  • U.S. District Court, District of Pennsylvania
  • U.S. District Court, District of Massachusetts
  • U.S. District Court, District of Connecticut
  • U.S. District Court, Eastern and Northern Districts of Texas


  • Defense Research Institute
  • New York State Bar Association
Publications & Presentations