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Jason M. Toon is Co-Chair of the National Leasing Practice and focuses his practice on all aspects of commercial real estate with a focus on shopping center development and other retail projects.


  • Real estate development
  • Real estate leasing
  • Real estate portfolio acquisition and sale



  • Lead complex multi-party negotiations and closings with developers, retailers, city officials, and other end users, resulting in the development of numerous real estate projects.
  • Experienced in drafting complex real estate agreements such as REAs, Leases, Supplemental Agreements, Indemnity Agreements, and Purchase and Sale Agreements in connection with the development and redevelopment of regional enclosed, lifestyle, and open air shopping centers located around the country.
  • Drafted and negotiated complex agreements such as Asset Purchase Agreements, Intellectual Property License Agreement, Structured Escrow Agreements, Transitional Service Agreements, Confidentiality Agreements, Non-Compete Agreements, Shareholder Voting Agreements, among other types of necessary acquisition documents.
  • Possess broad experience in identifying, researching and resolving numerous issues and disputes related to CAM, real estate tax, insurance, and maintenance and repair.
  • Diversified background in drafting and negotiating general corporate license and service agreements.
  • Counsel, The May Department Stores Company

Recognition & Leadership

  • Team Member, Chambers & Partners USA Real Estate Law Firm of the Year, 2010, 2013, 2017-2018, and 2022
  • Team Member, a U.S. News - Best Lawyers®, "Law Firm of the Year" in Real Estate Law, 2015
  • Team Member, The Legal 500 United States, "Top Tier" Firm in Real Estate, 2013 and 2014
  • Team Member, a Law360 "Real Estate Practice Group of the Year," 2011-2013, 2015, and 2022
  • Member, Illinois Bar Association
  • Member, Innovating Commerce Serving Communities
  • Member, Missouri Bar Association
  • Past Member, Board of Directors, Association of Corporate Counsel, St. Louis Chapter


  • J.D., cum laude, Creighton University School of Law, 1999
    • Board of Editors and Research Editor, Creighton Law Review
  • B.A., magna cum laude, Saint Louis University, 1996
  • Illinois
  • Missouri