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Mark Frimmel is a seasoned real estate practitioner. He navigates owners and developers through complex real estate acquisitions and development projects as well as in the sale of commercial, industrial, and residential buildings.

Mark advises lenders and borrowers in commercial and residential financing transactions, including mortgage loans, HUD insured healthcare mortgage loans, lines of credit, and mezzanine loans. He also represents landlords and tenants in office, retail, hospitality, healthcare, and industrial leases.

Mark has significant experience in the representation of cooperative and condominium housing associations. He advises debtors and creditors in Chapter 7, 11, and 13 bankruptcy proceedings where he routinely has counseled Chapter 7 Panel Trustees in asset recovery actions, adversary proceedings, and other contested matters.

Mark was formerly of counsel to the Real Estate Board of New York Subcommittee on Existing Housing, as well as a hearing officer for the County of Nassau, Small Claims Assessment Review. He served as a panelist in Fundamentals of Bankruptcy Law, at the Nassau Academy of Law, and was a member of the Nassau County Volunteer Lawyers Project screening potential Chapter 7 bankruptcy filers and filing bankruptcy petitions for accepted individuals.

Mark also represents thoroughbred racehorse owners in all aspects of the horse racing industry. Most notably, Mark has counseled the owners of Kentucky Derby, Preakness, and Breeders Cup winning horses.

Prior to joining Barton, Mark was a partner with the national firm Michelman & Robinson, LLP.


  • Banking and Finance
  • Business Transactions
  • Financial Services, Investment Funds, and Regulatory Compliance
  • Real Estate

Industry Experience:

  • Construction
  • Entertainment
  • Food and Hospitality
  • Healthcare
  • Real Estate


  • State of New York
  • U.S. Supreme Court
  • U.S. District Court for the Eastern and Southern Districts of New York


  • Fordham University School of Law, J.D.
  • Stony Brook University, B.A.


  • Selected to Super Lawyers New York Metro, 2015-2018; 2021 to present


  • New York City Bar Association – Member of the Real Property Law Committee; Member of the Subcommittee on Development and Financing

In the Media: