Shelley Rossoff Olsen

Shelley Rossoff Olsen, Esq.

JAMS Mediator, Arbitrator, Referee/Special Master, Hearing Officer

Case Manager
Catrina Barnes
T: 212-607-2785
F: 212-751-4099
620 Eighth Avenue, 34th Floor, New York, NY 10018

Shelley Rossoff Olsen is available to conduct cases virtually. JAMS is equipped to provide virtual ADR services on a variety of online platforms, including Zoom, Microsoft Teams, WebEx, and more.


Shelley Rossoff Olsen, Esq., joined JAMS in 2011 and is recognized as a specialist on dispute resolution in a wide variety of practice areas, mediating thousands of cases. She is an authority on medical malpractice, maritime, personal injury, and insurance disputes.  Ms. Olsen is highly respected by both the defendant and plaintiff bars. She is known for her persistent and fair approach in achieving a resolution for all parties involved.

In addition to her active mediation practice, Ms. Olsen has been the Special Master of the New York City Asbestos Litigation, from 2013 to 2022. In her role as Special Master, she coordinated thousands of asbestos related cases for discovery and trial.

Ms. Olsen developed her extensive civil law background by representing both plaintiffs and defendants, through her work at three prominent New York City law firms where she tried complex medical malpractice, labor law, lead poisoning, premises liability, and personal injury cases.  She was the Senior Court Mediator and Summary Jury Trial Judge in the Supreme Court, New York County Civil Division from 2005-2009 where she settled thousands of matters involving a wide range of issues.  Before then, Ms. Olsen was a principal court attorney in the Supreme Court Appellate Division, First Department for five years.

Representative Matters

  • Medical Malpractice
    • Labor & delivery, surgical, diagnostic, informed consent, and emergency department liability
  • Maritime/Admiralty: Negotiated numerous settlements involving injuries aboard sea vessels including:
    • Catastrophic injury
    • Jones Act
    • Failure to maintain a safe work environment
    • Wrongful death
  • Personal Injury: Settled all types of personal injury actions including:
    • Catastrophic injury claims including brain-damaged infants, elevator and crane malfunction injuries, quadriplegia, electrocution, amputation, and disfigurement
    • Product liability including medical devices, commercial equipment, automotive, and design defect
    • Toxic tort including claims involving asbestos, mold, lead, and radiation
    • Wrongful death including subway track accidents and nursing home cases
  • Professional Liability: Tried and settled numerous medical, legal, accountant, and architect malpractice matters including:
    • Comingling of funds
    • Fee disputes
    • Professional misconduct
  • Business/Commercial: Settled numerous business disputes in the financial, entertainment, banking, and technology industries including:
    • Art counterfeiting
    • Broker-dealer and stock and bond disputes
    • Commercial contracts
    • Entertainment licensing
    • ERISA
    • Partnership dissolutions
    • Valuation of assets
  • Construction/Labor Law
    • Court Attorney at First Department during evolution of ladder law cases resulting in the Blake decision
    • Labor Law sec. 240(1) and 241(6) cases
    • Settled thousands of Labor Law matters
  • Insurance/Re-Insurance: Resolved hundreds of cases involving coverage issues including:
    • Anti-subrogation
    • Coinsurance
    • D&O liability
    • Disaster insurance
    • Primacy of coverage
    • Valuation and property damage
  • Completed Virtual ADR training conducted by the JAMS Institute, the training arm of JAMS
  • Master Mediator Interviewee, “Annoy the Mediator at Your Own Risk: Negotiation Tactics and Missteps to Avoid, Part 2,” 2021
  • Master Mediator Interviewee, “Annoy the Mediator at Your Own Risk: Negotiation Tactics and Missteps to Avoid,” 2021
  • Master Mediator Interviewee, “Bedrooms, Bookcases or Beaches: Choosing and Organizing Your Background with Purpose,” 2020
  • Master Mediator Interviewee, “Polo Shirts, Power Ties and Pant Suits: Strategic Clothing Choices for Virtual Mediations,” 2020
  • Master Mediator Interviewee, “From Eye-Rolls to Grimaces: Understanding Body Language in Virtual Mediations,” 2020
  • Master Mediator Interviewee, "Zeroing in on Zoom: What Good Mediators Really Think About Virtual Platforms,” 2020
  • Speaker, "Mock Mediation: Early Resolution of Claims," The Association for Healthcare Risk Management of New York Inc., 2017
  • Speaker, "2016 Annual Update: Precedents and Statutes for Personal Injury Litigators," New York State Academy of Trial Lawyers, 2016
  • Speaker, “Litigating Asbestos Cases in Today’s Environment,” Perrin Conferences LLC, 2015
  • Speaker, "How Mediators Think," New York Law School's Alternative Dispute Resolution Skills Program, 2015
  • Moderator, "Effective Mediation Advocacy Techniques in Complex Personal Injury Cases," JAMS Mediation Week, 2015
  • Panelist, "Recognition of American Bar Association Mediation Week," New York University Law School's Mediation Organization (NMO), 2015
  • 1of 10 of Top Ten Mediators in New York State, New York Law Journal, 2010, 2011, 2013, 2014, 2015, 2017
  • Appointed Special Master of the New York City Asbestos Litigation, 2013-2022
  • Tort Advisory Committee Member, Supreme Court, New York County, 2005-present
  • Tort Litigation Committee Member, New York City Bar Association, 2005-2015
  • Courts of Superior Jurisdiction, New York City Bar Association, 2015-present
  • Co-chair, Medical Malpractice Committee, New York City Bar Association, 1995-1999
  • Speaker, "Defense Association of New York (DANY) Diversity Initiative," Diversity Project Honoree, New York Law Journal, 2015
  • Speaker, "Using Proven and Successful Mediation Strategies To Settle The Difficult Cases" Webinar Program, Defense Association of New York, 2014
  • Panelist, "What You Need to Know About ADR" CLE, NYCLA's Bridge the Gap Program, 2014
  • Speaker, New York State Gas & Electric Utilities Claims Managers Association, 2011
  • Panelist, ”What Defense Attorneys Should Know About How To Settle a Case” CLE Program, Defense Association of New York, 2010
  • Panelist, Mediation CLE, New York State Trial Lawyers, 2010
  • Panelist, ‘Mediation: The Better Solution’, CLE Program, Rockland County Bar Association, 2010
  • Panelist, Mediation and ADR in the New York Courts CLE Program, New York Women’s Bar Association, 2010
  • Mediator and Arbitrator, full-time practice since 2010
  • Summary Jury Trial Judge, Supreme Court, New York County, Civil Division, 2008-2009
  • Senior Court Mediator, Supreme Court, New York County, Civil Branch, 2005-2009
  • Principal Court Attorney, Supreme Court, Appellate Division, First Department, 2000-2005
  • Attorney, Trolman, Glaser & Lichtman, 1996-2000
  • Senior Associate, Martin, Clearwater & Bell, 1994-1996
  • Senior Attorney, Bower & Gardner, 1987-1994
  • Assistant District Attorney, Nassau County, 1984-1987
  • J.D., New York Law School, 1981
  • B.S., New York University, 1977

Counsel Comments

    • “Shelley Rossoff Olsen is an amazing mediator. She is prepared, concerned, bright, articulate and gets the job done.” 

      -NY Attorney
    • “This was my first mediation with Shelley Olsen and I thought she was fantastic! She was fully prepared regarding the facts, issues and problem areas for both sides. I will definitely request her again and I will share my experience with my colleagues. Thanks to Shelley for the assistance in negotiating our matter.”
    • “Shelley has certainly figured me out by now, humor and well-honed analysis based upon the evidence and not brute strength are the way to win me over.”
    • “Probably the most contentious mediation I have participated in. Shelley was great and handled it perfectly, never losing her cool and keeping on target.”
    • “The mediation experience with Ms. Olsen was extraordinary. On several occasions I was ready to leave without a settlement. Ms. Olsen repeatedly urged me to stay and continue. I stayed. The case is settled. There would have been no settlement without Ms. Olsen.”
    • “In a word, mediator was excellent. Complex, serious wrongful death case handled deftly & without any needless browbeating.”
    • “Mediator Olsen was terrific, determined, patient, persistent, cool, pleasant and effective.”
    • “Ms. Rossoff Olsen is a wonderful mediator- knowledgeable, works hard and is effective and fair.”
    • “Shelley was fantastic. This was a very difficult mediation with many different moving parts. Shelley knew which buttons to push, who to pressure when and how to ultimately achieve settlement with difficult parties involved. Excellent job!”



Practice Areas

  • Business/Commercial
  • Class Action/Mass Tort
  • Employment
  • Insurance
  • Maritime/Admiralty
  • Personal Injury/Torts/Labor Law
  • Professional Liability / Medical Malpractice
  • Special Master/Discovery Referee


Available nationwide


This page is for general information purposes.  JAMS makes no representations or warranties regarding its accuracy or completeness.  Interested persons should conduct their own research regarding information on this website before deciding to use JAMS, including investigation and research of JAMS neutrals. See More

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