Ellen Greiper has more than 30 years of experience defending multiparty construction and construction defect cases in the state and federal courts of New York. Also a member the firm’s nationwide 24/7 response program, Ellen has extensive experience representing large fleet trucking companies in a wide range of transportation matters. Additionally, she regularly manages crises pertaining to OSHA Safety & Health matters.

An appointed arbitrator for the district courts in Nassau County, New York, Ellen – who has extensive experience litigating high-exposure premises liability, Labor Law and personal injury matters that arise from construction site accidents and trucking accidents – also is a mediator for trial-ready cases in the Supreme Court of Nassau County. Her streamlined discovery techniques and proactive approach to complex litigation translates into effective and expedited solutions for clients. Ellen also handles defense of veterinary malpractice claims.

Ellen is a prolific author and frequent keynoter and speaker on emerging issues in the construction industry. She is a member of a number of professional industry organizations, including the Construction Specifications Institute, DRI’s Construction Defect Committee, and the Professional Women in Construction, where she served on the Board of Directors of its New York Chapter. Ellen also currently serves on the board of NAWIC, where she is a Director of its New York Chapter, and is a member of the Advisory Board for Advisen, acquired by Zywave in 2020.

Ellen joined Wilson Elser from the New York office of a full-service AmLaw 100 law firm with offices across the United States.

    Education

    • Brooklyn Law School (J.D., 1985)
      • Editor, Brooklyn Journal of International Law
    • Stony Brook University (B.A., 1981)

    Bar Admissions

    • New York
    • New Jersey

    Court Admissions

    • Supreme Court of the United States
    • 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
    • U.S. District Court, Western District of New York

    Professional Affiliations

    • DRI: The Voice of the Defense Bar
    • Professional Women in Construction, Board of Directors
    • Construction Specifications Institute
    • Lawsuit Reform Alliance of New York (LRANY), Co-chair, Legal Advisory Board; Construction Law Committee
    • Nassau County Bar Association
    • Theodore Roosevelt Inn of Court
    • Judges-Lawyers Chapter of Hadassah
    • New York City Association of Insurance Women
    • Claims and Litigation Management Alliance (CLM)
    • National Association of Women Lawyers (NAWL)
    • Association of Professional Insurance Women (APIW)
    • Community Mainstreaming Associates, Board of Directors; nonprofit agency for housing and vocational training for developmentally disabled

    Awards & Honors

    • Selected for inclusion in The Best Lawyers in America®, 2026
    • Selected for inclusion in The Best Lawyers in America® Women in Law, 2025
    • New York Metro Super Lawyers, 2017–2018
    • Long Island Center for Business and Professional Women: 2016 Achiever
    • Leadership in Law Award, Long Island Business News, 2016

    Past Speaking Engagements

    "Claims, Litigation, and Legislation Affecting Casualty Insurance," Zywave Casualty Insights Conference, 2023.

    "Evolving Civil Litigation Trends 2022," Lawline, 2022.

    "Closing Keynote: Leveraging Industry Trends," Insurance Business (IB) Women in Insurance New York Summit, 2022.

    Chaired DRI's Construction Law Conference and the Construction Defect, Claims & Litigation ExecuSummit in 2017–2018.

    Presented at the Women in Insurance Leadership ExecuSummit in 2017–2019.

    Past Publications

    Co-author, Mealey’s Litigation Reports: Construction Defects (2013, updated 2017); comprehensive survey examining a cross-section of construction cases from around the country.

    Co-author, New York State Bar Association's Construction Site Personal Injury Litigation (published 2014, updated 2018)

Events

Ellen Greiper has more than 30 years of experience defending multiparty construction and construction defect cases in the state and federal courts of New York. Also a member the firm’s nationwide 24/7 response program, Ellen has extensive experience representing large fleet trucking companies in a wide range of transportation matters. Additionally, she regularly manages crises pertaining to OSHA Safety & Health matters.

An appointed arbitrator for the district courts in Nassau County, New York, Ellen – who has extensive experience litigating high-exposure premises liability, Labor Law and personal injury matters that arise from construction site accidents and trucking accidents – also is a mediator for trial-ready cases in the Supreme Court of Nassau County. Her streamlined discovery techniques and proactive approach to complex litigation translates into effective and expedited solutions for clients. Ellen also handles defense of veterinary malpractice claims.

Ellen is a prolific author and frequent keynoter and speaker on emerging issues in the construction industry. She is a member of a number of professional industry organizations, including the Construction Specifications Institute, DRI’s Construction Defect Committee, and the Professional Women in Construction, where she served on the Board of Directors of its New York Chapter. Ellen also currently serves on the board of NAWIC, where she is a Director of its New York Chapter, and is a member of the Advisory Board for Advisen, acquired by Zywave in 2020.

Ellen joined Wilson Elser from the New York office of a full-service AmLaw 100 law firm with offices across the United States.

Ellen Greiper

Carroll, Comfort and Greiper Obtain Affirmance in Motor Vehicle Case before the Appellate Division, First Department

New York, New York, partners Kristen Carroll, Nolan Comfort and Ellen Greiper obtained unanimous affirmance of an order from Bronx County that granted our motion for summary judgment dismissing the complaint on the grounds that the plaintiff did not sustain a “serious injury” under any category of Insurance Law § 5102(d), in a case where summary judgment was already granted to the plaintiff on liability in a rear-end accident. The court held that Kristen, Nolan and Ellen met their prima facie burden through the submission of an expert report from an orthopedic surgeon who found normal ranges of motion with no evidence of acute injury, and that any injuries were degenerative in nature and not causally related to the accident; and a biomechanical engineering expert who opined that the low impact could not have caused the plaintiff’s claimed injuries. The plaintiff’s deposition also was submitted, wherein he admitted he ceased treatment within eight months of the accident. The court held that plaintiff’s failure to explain his cessation of treatment interrupted the chain of causation and rendered his physician’s finding of permanency speculative. Finally, the court held that the team met our burden with respect to the 90/180 category, as the plaintiff testified that he was only out of work for six weeks after the accident and continued to work at least 40 hours a week in his same capacity as a signal maintainer with the MTA within a few months of the accident.

Kristen A. Carroll, Nolan P. Comfort and Ellen Greiper

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