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Brendan J. Derr - New York, NY

733 Third Avenue New York, NY 10017- 3204

Updated: 09/07/2023

New York Litigation Lawyer


Brendan J. Derr joined Rosenberg & Estis, P.C. in 2018 and is Of Counsel with the firm’s Litigation Department. Derr is an experienced litigator whose practice includes representing clients in a diverse range of disputes including those relating to real estate, construction, and complex commercial/business matters in both state and federal courts, as well as in arbitration...

About Brendan J. Derr

Current Employment Position(s)

  • Of Counsel

Practice Areas

  • Litigation
  • Commercial Lease Disputes
  • Loft Law
  • Co-op / Condo Disputes
  • Construction Disputes and Adjoining Access Issues
  • Adverse Possession Cases
  • Landlord / Tenant Disputes, including Yellowstone Injunctions
  • Contract Disputes
  • Mechanics’ Lien Proceedings
  • Construction Agreements


Bar Admissions

  • New York, 2012
  • U.S. District Court Southern District of New York, 2012

Other Affiliations

  • New York State Bar Real Estate Property Law Section - Construction Committee


  • Fordham University School of Law, New York, New York, 2011
    Honors: magna cum laude
    Honors: Order of the Coif
    Honors: Archibald R. Murray Public Service Award
    Law Review: Environmental Law Review, Business and Technology Editor
  • Pace University, 2006
  • Fordham University, 2004
    Honors: cum laude
    Honors: Dean’s Scholarship
    Honors: GreenPoint Bank Scholarship
    Honors: The Fordham Club
    Major: American Studies
    Major: History


Published Works

  • Need To Protect Your Neighbor’s Property? It’s Going To Cost You., New York Law Journal, March 25, 2022
  • NYC Construction Industry, There’s a New Sheriff In Town, Law360, August 13, 2015
  • From Friend Request To Document Requests: Preserving Social Media In Anticipation Of Litigation, Bloomberg BNA – Social Media Law & Policy Report, Vol. 3, No. 34, September 2, 2014
  • CPLR 3213 Motions for Summary Judgment in Lieu of Complaint: An Update, New York Law Journal, June 2023

Office Information


733 Third Avenue New York, NY 10017- 3204


  • 212-551-8484



  • Selected to New York Super Lawyers Rising Stars, 2014-2018

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