Byrnam Wood

Our Team

Joseph Thanhauser III

Joseph Thanhauser III

(212) 218-6501

Joseph Thanhauser began his career in the 1970's working for leading New York owners and developers: first Uris Buildings Corporation (which later became Olympia & York) then Tishman Realty, where he was involved in the leasing and development of their major commercial properties.

In 1975, he joined with a small group of former Uris executives to form a development, consulting and brokerage company. The firm built and sold several office buildings and a hotel for its own account, but it was the firm's emphasis on tenant representation that set it apart from its contemporaries. It was fundamentally different from every other firm that advised tenants: it did not think as an intermediary, trained in the tradition of the broker, but as an advocate for the tenant, knowing the rationales and tactics that each owner would use.

In 1992, he launched Byrnam Wood to put these principles into action in a firm devoted entirely to the interests of tenants. He is known for negotiating aggressively and intelligently and for an articulate style of analysis and reporting to clients, traits that have enabled him to win an unprecedented seven annual Real Estate Board of New York awards recognizing the city's most ingenious and professional deals.

Mr. Thanhauser is a graduate of Cornell University with a B.S. in electrical engineering, and he holds an M.B.A in finance from Columbia University.

Gordon Ogden

Gordon Ogden 

(212) 218-6504

Gordon Ogden joined Byrnam Wood in 1997 as a principal, having worked in tenant representation at a number of large and mid-sized firms, including Pearce Urstadt Mayer & Greer, Pattison Partners, Insignia/ESG and CB Commercial.

He has worked on major transactions for virtually all of Byrnam Wood's clients, in New York, across the country and around the world. Typical transactions have included leasing headquarters offices in Tokyo, advising clients on space alternatives and terms in Sao Paolo, Brazil, working with Nike on its Manhattan headquarters space and helping law firms and advertising clients meet their space needs around the United States.

His varied philanthropic work includes service on the boards of Collegiate School, The Boys' Club of New York and Job Path. He is a graduate of Washington and Lee University with a B.A. in political science.

Richard Berzine

Richard Berzine 

Senior Advisor/Principal 

Richard Berzine joined Byrnam Wood, LLC as Senior Advisor and Principal in 2017 following 25 fruitful years at the helm of Richard Berzine & Company, Ltd. (RB & Co) a firm founded to provide strategic real estate advisory and brokerage services. During his quarter century at RB & Co. Richard was lead negotiator in lease and sale assignments totaling in excess of 18 million square feet of office and distribution space in fifty three cities in the U.S., Britain, France, and Hong Kong.

Richard has served as U.S. and U.K. real estate advisor to Pearson plc and subsidiary companies including the Financial Times Group, the Penguin Group and Pearson Education establishing their London and New York HQ’s. In 2011 / 2012 Richard led Pearson teams that negotiated two skyline changing deals in the NY / NJ metropolitan area: a 310,000 sq. ft. anchor tenant lease allowing Beacon Capital Partners to finance the redevelopment & expansion of Manhattan’s 330 Hudson Street and; a 206,000 sq. ft. anchor tenant lease allowing SJP Properties to finance construction of Hoboken’s Waterfront Corporate Center III. Together these two properties would house some 2,500 Pearson employees drawn from 7 different facilities.

Following Pearson’s recent restructuring Richard successfully subleased some 290,000 sq. ft. of Pearson’s 330 Hudson to TED Conferences, Deloitte, John Hardy, Concentric Partners, Adtheorent and erstwhile Pearson companies MergerMarket and Financial Times Group. That same restructuring allowed Richard to negotiate two subleases with to for 80,000 sq. ft. in Waterfront Corporate Center III.     

Richard represented Interactive Data Corporation (IDC) in creating a new HQ in Bedford Massachusetts; he subsequently negotiated new leases for IDC in Manhattan, and Westchester County while renegotiating its European HQ lease in London.

Richard also established regional HQ’s for FTSE (the global index company) in New York and Hong Kong. Other notable clients served by Richard included The Economist Newspaper Group in London, Hong Kong, New York, Cambridge MA, Chicago and Miami as well as Prudential Insurance Company of America, Wheat First Securities, the law firm of Hunton & Williams, Wexford Management LLC and Great Britain’s Northern & Shell Group. Prior to founding his eponymous firm Richard spent eleven years at Rockefeller Group’s Cushman & Wakefield.

Richard is a Trustee of Saint Paul’s Cathedral Trust in America; in 2008 he was admitted to the Freedom of the City of London by the Court of Common Council. He served as a director of Pearson Real Estate Holdings Inc. and sat on the Dean’s Alumni Leadership Council at Harvard’s Kennedy School of Government. He was twice elected to the Board of Tax Review of the Town of Canaan (Falls Village), Connecticut. A graduate of Harvard University’s John F. Kennedy School of Government Richard holds a Master’s degree in Public Administration; his early career involved diverse areas of Federal, Regional. State and local public service.

Benjamin Mohr


Ben Mohr has represented some of the most dynamic businesses in the world in their corporate real estate. He has done work for clients in New York City, throughout the U.S., and on a global basis in more than 20 countries. A select list of clients include:

  • The New York Times Co.
  • (now Dotdash)
  • IBM
  • Publicis
  • Nike
  • Wachovia Bank (now Wells Fargo)
  • Meow Wolf, Inc.

Ben began his real estate career in 2004 at Cushman & Wakefield, an international commercial real estate services firm based in New York. He joined Byrnam Wood, a real estate brokerage representing only corporate office users and known for its independent, strategic style. Ben has represented clients in over 3 million square feet of real estate transactions. He has served as expert witness in commercial leasing in federal bankruptcy court and has taught commercial real estate to new real estate brokers. He graduated from Indiana University and before real estate was an English teacher at a nationally top-ranked college preparatory high school.     

He is a member of the Real Estate Board of New York (REBNY) and holds real estate brokerage licenses in New York and New Mexico.

Robert Mitchell

Robert Mitchell 


Bob joined Byrnam Wood in 2012. An industry veteran of over 20 years, as executive director, Bob brings an extensive array of commercial real estate experience, providing tenants with a unique perspective on real estate requirements. In addition to brokerage advisory service, Bob's expertise spans across architectural services, interior space design, and project management. This multi-sector background across numerous integral service lines helps tenants understand all the necessary steps required to implement their immediate and long-term real estate strategy. Bob has completed assignments for an array of tenants across a number of national and New York-based industries. Among others, he has advised GE Capital, Kirkpatrick & Lockhart, Oppenheimer Funds, Natixis Banque, Duane Morris, and Story Worldwide.

Prior to joining Byrnam Wood, Bob was a transactional broker at Insignia, CB Richard Ellis, and Cushman & Wakefield.

Nicholas M. Gilman

Nicholas M. Gilman 

Executive Vice President

For over twenty-five years, Nick Gilman has acted for many of New York's highest caliber office tenants with skill, integrity and tenacity. Representing tenants exclusively, he has consistently achieved favorable deals for clients regardless of prevailing market conditions.

Nick began his career in the 1980's with the William Kaufman Organization, owner and operator of 747 Third, 767 Third, 777 Third, and 437 Madison Avenue. Having worked through boom and bust with one of the city's premier office landlords, he understands how owners approach lease negotiations in all market cycles. Shifting over to the tenant side, Nick started at global firm CB Richard Ellis before moving on to Byrnam Wood.

Since the 1990's Nick has partnered with Gordon S. Ogden as one of the city's most prolific tenant representation teams. Nick's clients over the years include Volvo North America, The Swedish-American Chamber of Commerce, The World Gold Council, The Robert Wood Johnson Foundation, Savanna Funds, MBIA and Mohawk Industries, to name just a few.

Nick has also served, at Morgan Stanley, as a Certified Financial Advisor to high-net-worth clients. Returning to Byrnam Wood as Executive Vice President, Nick continues to advocate for office tenants in his uniquely transparent and creative style.

Caxton Kaback

Caxton Kaback

Vice President 

Caxton is a tenant representative serving businesses and philanthropies in commercial lease negotiations, with a primary focus on the Plaza District, Rockefeller Center, and boutique Class A space. He works closely with Executive Vice President Nicholas M. Gilman, as well as with the entire Byrnam Wood organization.

Caxton began his real estate career at BLDG Management Company, Inc., where he gained experience in property management, development, and acquisition throughout Manhattan, the Boroughs, and Northern New Jersey. He also interned at the Sears Tower with CB Richard Ellis. More recently, he worked with a small investment fund targeting multifamily properties in Northern Manhattan.

Caxton received a BA from the University of Chicago, where he served as President of Alpha Epsilon Pi Fraternity. He also served as Student-Faculty Council President at Riverdale Country School in The Bronx.

Jack Molloy

Jack Molloy

Licensed Real Estate Salesperson

After two successful years in long and short cycle technology sales, Jack joined the Byrnam Wood team as a Director in September, 2017. Focused on the end result, Jack carries with him a client-centric mindset going above and beyond client expectations to ensure a positive experience. At Byrnam Wood, Jack's emphasis is on business development while also working closely with Byrnam Wood Principals to nurture longstanding relationships.

Jack graduated from Cornell University in 2015 from the School of Industrial and Labor Relations. While at Cornell, he was a four-time varsity letter recipient on the men's lacrosse team.

Jack is a licensed real estate salesperson in the state of New York and a member of the Real Estate Board of New York.

Robert Kulick

Executive Director

With more than 25 years of experience representing tenants with their commercial real estate requirements, Robert has represented a large cross section of prominent national and international corporations, structuring a wide variety of transactions including leases, subleases, renewals, extensions, acquisitions, dispositions, and sales.  He works closely with his clients to create the most efficient and cost-effective occupancy solutions that support their overall business objectives - whether it is to reduce occupancy costs, improve the productivity and/or quality of the work environment or support future growth or goals.  Robert takes a long-term strategic approach to servicing his clients and has always sought to cultivate long-standing relationships based on well-earned trust and confidence with his clients, many of which have retained his services to secure and close multiple transactions over extended periods of time.  Some of his most notable clients have included AT&T, Benetton, Charles Jourdan, Christofle Silver, Hachette Publications, Hyakugo Bank, Jurlique, LVMH Moet Hennessy, Marithe + Francois Girbaud, Schawk Inc, Security Mutual Life of NY and Versace.