Dennis I Hellman, Attorney at law • Rosenberg & Estis, P.C • New York City NY, USA | Finest Residences

Dennis I Hellman

Attorney at law at Rosenberg & Estis, P.C.

  • Service Areas: Greater New York City NY, USA
  • Specialties: Transactional Law, Real Estate Leasing, Real Estate Development

About Dennis I Hellman

Dennis I Hellman joined Rosenberg & Estis in 1993 and is a member with the firm’s Transactional Department. In recent years, most of Mr. Hellman’s practice has been concentrated on acquisitions, dispositions and developments throughout the United States, as well as on representing borrowers in complex financings and both owners and tenants in commercial leasing matters. Mr. Hellman’s after-hours commitments include memberships on several committees of the Real Property Law Section of the New York State Bar Association.

Notable Work

  • Dennis I Hellman represented The Durst Organization in construction loans and EB-5 financings for each of 855 Avenue of the Americas and 625 West 57th Street in an aggregate amount in excess of $900 Million.
  • Somerset Partners in the acquisition, financing, leasing and sale (for approximately $550 Million) of 450 Park Avenue.
  • The Durst Organization in the lease of 9 floors at 1133 Avenue of the Americas to a prominent law firm and in a separate lease of both retail and office space to Steinway Musical.
  • Kaufman & Jacobs in the acquisition, leasing and financing of a corporate campus in Milwaukee. The lease provides for, among other things, long term renewal options, expansion options and options to require the landlord to construct additions to the buildings over the term of the lease.
  • Somerset Partners in the acquisition, redevelopment, financing, leasing (including the anchor lease to a prominent U.S. Government Entity) and sale (for approximately $450 Million) of 1801 K Street in Washington, D.C.
  • The Durst Organization in its joint venture with Bank of America and the joint venture in the $1.4 Billion CMBS and Liberty Bonds financing of One Bryant Park, as well as in the 2016 restaurant lease to Burger & Lobster.
  • Rubicon US REIT in refinancing and sales of office buildings in many cities throughout the US, including Miami, Baltimore, Richmond, San Jose, Kansas City and Fresno and the re-leasing of an office building in Portland, Oregon (which was thereafter also sold). One of those leases won the 2014 lease of the year award in Portland.
  • The Durst Organization in a multi-party office leasing transaction at 733 Third Avenue involving approximately 200,000 square feet resulting in the restacking of existing tenants to accommodate a major tenant establishing its NYC headquarters. The transaction won the Real Estate Board of New York’s 2004 Henry Hart Rice Achievement Award as the most ingenious leasing transaction of the year.
  • Henry Kallan in connection with the development and financing of the Giraffe, Library and Casablanca Hotels in New York and Hotel X in Toronto (including the ground lease with the City of Toronto).
  • The Durst Organization in connection with the assemblage of the land for and the development and financing (including the defeasance of the prior loan) of 4 Times Square, as well as in numerous other office building refinancings and mezzanine loans.
  • Dennis I Hellman Somerset Partners in the sale of 85 Tenth Avenue for approximately $430 Million.
  • A public advertising company for many years in numerous leasing transactions throughout the United States, including in New York City, Chicago, San Francisco, Los Angeles, Orange County, California and Philadelphia.

Dennis I Hellman’s after-hours commitments include memberships on several committees of the Real Property Law Section of the New York State Bar Association.

Year Joined Firm

  • 1993

Areas of Practice

  • Transactional Law
  • Real Estate Leasing
  • Real Estate Development

Bar Admissions

  • New York, 1975
  • U.S. District Court Eastern District of New York, 1975
  • U.S. District Court Southern District of New York, 1975
  • U.S. Court of Appeals 2nd Circuit, 1975


  • New York University School of Law
    • J.D. – 1974
    • Law Review: New York University Law Review, Articles Editor, 1973 – 1974
  • City College of the City University of New York
    • B.A. (Cum Laude) – 1967
    • Honors: Special Honors in Political Science
    • Major: Political Science

Published Works

  • “Foreclosure Alternative Available,” The National Law Journal, July 5, 1993

Language: English

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