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Warren J. Karp is Co-Chair of the firm’s Global Retail Industry Group and is Co-Chairman of the New York office. Warren represents national and international clients on retail logistics and supply chain operations and diverse real estate, commercial leasing and commercial business matters. His clients include national and international retailers, developers, property owners, banks and financial institutions . The firm's Retail Industry Group has been recognized as a first-tier practice in Chambers USA from 2007-2022.


  • Retail industry
    • Leases, real estate transactions and development
    • Logistics, supply chain, transportation and warehouse services agreements
    • Outsourcing, third party vendor and retail operations agreements
    • License agreements
    • Consignment agreements
    • Airport and transportation hub leasing
  • Real estate acquisitions, dispositions, development and restructuring
  • Retail, office, commercial, industrial and warehouse leases
  • Sale lease-back transactions
  • Municipal and governmental leases and development projects
  • Bankruptcy real estate transactions
  • Brownfield acquisitions and redevelopment
  • Retail and commercial condominiums
  • Business and commercial law



  • Representation of a private equity portfolio company in a sale leaseback transaction involving 19 retail and industrial properties located in 5 states.
  • Representation of an international financial institution in connection with several sale leaseback transactions involving multiple properties located in several states.
  • Representation of a leading international specialty retailer of high-quality, casual apparel in connection with the re-structuring of the client's logistics services agreements in the US, Europe and Asia.
  • Representation of a prominent, international luxury goods retailer in connection with its real estate leases and its expanded distribution, supply chain and logistics services programs in the United States, Europe, Asia and South America.
  • Representation of big box retailers, “category killers” and retailers generally in the acquisition, development and leasing of retail stores and warehouse facilities, including ground leases, capital leases and build to suit leases.
  • Representation of an international luxury food manufacturer and retailer in connection with its expanded distribution, supply chain and logistics services programs in North America and Asia.
  • Representation of a U.S. based luxury goods retail in the negotiation of a strategic build-to-suit distribution center.
  • Representation of the largest U.S. based sporting goods retailer in the negotiation of flagship store leases.
  • Representation of the redeveloper of the central terminal at LaGuardia Airport in connection with the concession sublease, licenses and various commercial agreements.
  • Representation of a global, U.S. based food and consumer goods company in connection with the acquisition and leasing of new distribution facilities in the United States.
  • Representation of several prominent museums in the negotiation of logistics services agreements for their retail operations.
  • Representation of financial institutions in the acquisition, development and leasing of branch locations and offices.
  • Representation of clients in connection with real estate due diligence on bids to acquire operating businesses with significant real estate assets.
  • Representation of a client on the real estate components of the client’s Chapter 11 bankruptcy proceeding.
  • Representation of a client disposing of over 400 real estate leases and fee properties during its bankruptcy liquidation.
  • Representation of a family real estate development business in the disposition of its retail and office properties.
  • Representation of developers and retailers in connection with the acquisition, leasing, and development of Brownfield sites.
  • Representation of a commercial cooperative in its relationship with the City of New York, including the negotiation of its lease, grants and funding agreements with the New York City Economic Development Corporation.
  • Representation of clients including business organizations and charitable organizations negotiating leases, grants and funding agreements with the City of New York.
  • Representation of a client to acquire a Brownfield industrial site through a structured, competitive bankruptcy court bid, structuring the redevelopment of the site as a retail condominium to create added value and facilitate the rapid redevelopment of the property, and structuring and negotiating a bonded lease with the anchor tenant.
  • Representation of a municipality in structuring a design-build municipal parking facility, including a sale leaseback transaction with the developer.
  • Representation of a client in a complex multi-party exchange and development project including property assemblages, exchanges and development agreements with city agencies for construction of a major downtown retail redevelopment project.
  • Representation of a fine art storage and services company in connection with negotiation of self-storage and custodial storage agreements, fine arts services agreements, bailee agreements and leases.

Recognition & Leadership

  • Listed, The Best Lawyers in America, Real Estate Law, 2012-2024
  • Team Member, Chambers & Partners USA Real Estate Law Firm of the Year, 2010, 2013, 2017-2018, and 2022
  • Listed, Super Lawyers magazine, New York Metro Super Lawyers, 2006-2023
  • Team Member, a U.S. News - Best Lawyers®, "Law Firm of the Year" in Real Estate Law, 2015
  • Listed, Chambers USA Guide, 2007-2022
  • Team Member, a Law360 "Real Estate Practice Group of the Year," 2011-2013, 2015, and 2022
  • Team Member, The Legal 500 United States, "Top Tier" Firm in Real Estate, 2013 and 2014
  • Mentioned, Chambers USA Guide, 2013 and 2014
  • Rated, AV Preeminent® 5.0 out of 5.0

°AV®, AV Preeminent®, Martindale-Hubbell DistinguishedSM and Martindale-Hubbell NotableSM are certification marks used under license in accordance with the Martindale-Hubbell® certification procedures, standards and policies.

  • Member, Board of Directors, The Lawyers Alliance of New York, 2015-Present
    • Chairperson, Board of Directors, 2021-2022
  • Member, Advisory Board, Advanced Commercial Leasing Institute
  • Fellow, American Bar Foundation
  • Member, New York and Pennsylvania Bar Associations
  • Member, American Bar Association
  • Member, International Bar Association
  • Member, ICSC
  • Member, Real Estate Board of New York


  • J.D., Brooklyn Law School, 1973
  • B.A., Binghamton University, State University of New York, 1970
    • Harpur College
  • New York
  • Pennsylvania