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Marc Isserles

Marc E. Isserles, Esq.

Case Manager
Bradley Dynowicz
T: 212-607-2775
F: 212-751-4099
620 Eighth Ave., 34th Floor, New York, NY 10018


Marc E. Isserles, Esq. is a skilled commercial mediator with more than 15 years of litigation experience handling complex business disputes.

Mr. Isserles regularly mediates employment law cases, including cases involving claims of sex, race, age, religion, national origin, and disability discrimination (under federal, state, and city discrimination laws), retaliation claims, Equal Pay Act violations, and claims under the Fair Labor Standards Act.

A former law clerk to U.S. Supreme Court Justice Stephen Breyer, and a founding partner of a top New York City litigation boutique, Mr. Isserles brings to his mediation practice the skills of both a nuanced legal thinker and seasoned litigator. Mr. Isserles is known for his judicious temperament, thorough preparation, and ability to quickly grasp both sides of a complicated issue while keeping an open mind. Mr. Isserles is a Lecturer in Law in the Negotiation Workshop at Columbia Law School.


Representative Employment Law Mediations and Arbitrations

  • Mediated wrongful termination claim by former head coach of division one sports team against former university
  • Mediated 8-figure claim by technology executive against managing members of LLC-employer for wrongful dissolution of entity 
  • Mediated disability discrimination claim by security guard against government contractor
  • Mediated sexual harassment and retaliation claim against major retailer
  • Mediated FMLA interference and retaliation claim against non-profit health services organization
  • Arbitrated retaliation claim by restaurant manager against restaurant chain following incident of alleged sexual harassment
  • Arbitrated age discrimination claim by telecommunication company sales executive who was terminated as part of a purported reduction in force
  • Mediated FLSA dispute over unpaid overtime between former employee and major retaileMediated FLSA collective action for overtime wages against restauranMediated FLSA overtime and retaliation claim against major retailer
  • Mediated sexual assault and sexual harassment claim against major retailer
  • Mediated claims by major financial services firm to enforce promissory notes given to former employees
  • Mediated seven-figure whistleblower and discrimination claim against major health care provider
  • Mediated FLSA claims brought against provider of technology services for misclassifying certain workers as exempt
  • Mediated numerous claims by employees challenging employer’s failure to pay bonus and/or deferred compensation
  • Mediated sexual harassment and assault claim brought by employee against small business owner
  • Mediated national origin and disability discrimination claim against DOE and school principal
  • Mediated gender discrimination claim brought by high-level executive against major insurance company
  • Mediated sexual harassment and hostile work environment claim brought against construction company
  • Mediated sexual harassment and hostile work environment claim brought by contract attorney against law firm and temporary placement agency
  • Mediated seven-figure age discrimination and retaliation lawsuit brought by physician specialist against hospital
  • Conducted binding mediation/baseball arbitration of seven-figure hostile work environment and retaliation claim brought against major retailer
  • Mediated dispute between hedge fund and former analyst over fund’s alleged failure to pay a guaranteed annual bonus
  • Mediated disability discrimination claim brought by special agent against federal agency
  • Mediated hostile work environment, sex, and race discrimination claim brought by public school teacher harassed by students
  • Mediated sex discrimination claim brought by high-level executive against fashion design company
  • Mediated religious discrimination claim brought by teacher against secular school district located within religious enclave
  • Mediated national origin discrimination claim brought against parking company
  • Mediated sex discrimination claim brought against restaurant chain
  • Lecturer in Law, Columbia Law School, Negotiation Workshop – 2018-2019
  • Neutral on various court panels, including the U.S. Court of Appeals for the Second Circuit; U.S. District Court for the Southern District of New York; and the Supreme Court, Commercial Division for New York County
  • Founding Partner, Shapiro, Arato & Isserles LLP, 2009-2014
  • Partner and Associate, Cohen & Gresser LLP, 2005-2008
  • Associate at Parcher, Hayes & Snyder, O’Melveny & Myers, and Jenner & Block, 2000-2005
  • Law Clerk to Hon. Stephen G. Breyer, U.S. Supreme Court, 1999-2000
  • Law Clerk, Hon. Laurence H. Silberman, U.S. Court of Appeals for the D.C. Circuit, 1998-1999
  • J.D., magna cum laude, Harvard Law School, 1998; Joshua Montgomery Sears Prize (for highest grade point average during second year), 1996-1997; Notes Editor, Harvard Law Review, 1996-1998
  • B.A., Sarah Lawrence College, 1993

Counsel Comments

    • "Excellent legal knowledge and first rate Mediation skills. I would recommend him highly. I would rank Mr. Isserles among the best Mediators I have encountered.”
    • "Mr. Isserles is an intelligent, persuasive, thoughtful, empathic and patient mediator. He is a pleasant person to spend the day with and is careful to always keep the focus on the clients. These qualities enable the parties to reach a handshake without even realizing their arms had been twisted.”
    • “Marc has that rare and perfect combination of mediator skills - patience, persistence, personable, and razor-sharp smarts. He quickly masters legal issues and gets to the heart of a dispute and what drives each side. He masterfully helped resolve my multi-party action involving a number of strong personalities.”
    • “Mr. Isserles was an impressively prepared, skilled, and patient neutral who worked tirelessly to get the parties together in a hotly contested federal case. I would recommend him without hesitation.”
    • “After the parties experienced an unsuccessful and very contentious mediation with another mediator, Mr. Isserles stepped in and managed to professionally and expeditiously resolve the parties' complex partnership dispute in less than a day.”
    • “Marc Isserles was able to settle a multifaceted commercial case involving multiple parties, in which no one going into the mediation believed would ever settle. The case, which had already been through a full hearing before the California Labor Board, in connection with a breach of an Artist’s Manager contract, was extremely contentious. Marc quickly assessed the situation, identified the issues and managed to deal with some extremely difficult clients on both sides of the table. He had thorough knowledge of the law, knew the history of the case and effectively used this information to work with both sides. Marc persevered even when he was told by both sides there would be no settlement. Before the evening ended, a deal memo was signed. I recommend Marc without reservation.”
    • “Marc Isserles served as a mediator in a complex commercial dispute involving numerous disputed legal and factual issues. Throughout the process, Marc demonstrated great skill, patience and understanding in dealing with the parties and their respective claims. He is smart, open-minded and demonstrated a unique ability to come up with possible creative solutions for settlement throughout the mediation process - all the while maintaining the respect of the litigants and counsel. I would certainly recommend Marc to be a mediator in any commercial dispute and feel confident that his involvement will be favorably received by all participants.”
    • “Mr. Isserles served as mediator in a commercial contract dispute. He quickly became conversant with the factual and legal issues involved in the case and, just as important, identified the practical impediments to settlement and brainstormed with the parties how they could best be overcome. Before the day of mediation ended, we had reached a complete settlement that might not have been attainable with a less skilled mediation professional.”
    • “Marc has the qualities found in only the very best mediators - intelligence, attentiveness, creativity, and persistence. I very much look forward to working with Marc again.”
    • “Marc helped us resolve a business dispute in which personal feelings ran high. He showed intelligence and attention to detail, and dealt with the parties with energy and humor. We would recommend him highly.”
    • “Marc is a highly effective mediator who is smart, well-prepared and engaging. He was instrumental in resolving a complex commercial matter at mediation. I would recommend him without qualification.”
    • "Marc did a great job in a relatively small but emotionally-charged employment/bonus case. I thought he...showed excellent judgment and excellent people skills in bringing the parties to the right compromise figure. Importantly, he showed creativity and doggedness in working through a very tricky procedural issue after the parties had agreed on the settlement amount. In a good and respectful way, he wouldn’t let us go home and give up, and we eventually found a way through the issue.”
    • "Marc is a highly effective, intelligent mediator with a remarkable work ethic. In a highly contentious employment case, he was personable and patient, well-prepared, and completely impartial. Marc was instrumental in bringing about a good result for all parties. I would recommend him without reservation.”




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