142 West 57th Street

New York, NY 10019

212 339 3911




L&L MAG is a real estate development company founded by David Levinson, Robert Lapidus and MaryAnne Gilmartin. The company brings together purposeful, committed builders to develop beautiful projects that enhance the skyline and streetscapes of our communities while delivering value to partners and investors. We are a proud woman co-founded and managed company dedicated to inclusivity in the real estate industry.

Jeffrey Rosen

Managing Director
Development & Capital Markets

Jeffrey Rosen is a Managing Director at L&L MAG and oversees development and capital market activities for the company.

Most recently Jeffrey served as Executive Director of Greenland Forest City Partners, a joint venture partnership between Forest City Realty Trust and Greenland USA, a subsidiary of Shanghai-based Greenland Group.  In that role, Mr. Rosen was responsible for the overall execution and strategic direction of Pacific Park Brooklyn, the $4.9 billion, 22-acre mixed-use development in the heart of Brooklyn.

Jeffrey also served as Senior Vice President for Finance and Capital Markets at Forest City. Over his 12-year career at Forest City, he was responsible for the origination and structuring of construction and permanent debt, private equity transactions and joint venture partnerships.

Prior to Forest City, Jeffrey worked for PricewaterhouseCoopers in the Management Consulting Services division, advising Fortune 500 clients on enterprise-wide process improvement initiatives.

Jeffrey is a graduate of Cornell University and received his MBA from New York University.

Jeffrey can be reached at jrosen@llmag.com.

Susi Yu

Managing Director
Head of Development

Susi Yu is a Managing Director and the Head of Development at L&L MAG, responsible for overseeing and executing the company’s development investment strategy.

Previously, Susi served as Executive Vice President of Development for Forest City Ratner Companies, leading the Residential Development team on execution of Pacific Park Brooklyn, the $4.9 billion, 22-acre mixed-use development in the heart of Brooklyn. At Forest City, Susi also oversaw the development of large scale, mixed-use urban projects including New York by Gehry, a 900-unit residential building designed by Frank Gehry. Susi started at Forest City in 2001 and has worked there since with the exception of a 20-month stint from 2013-2015 with the Howard Hughes Corporation as Senior Vice President of Development.

Trained as an architect at the University of Virginia’s School of Architecture, Susi previously worked for 10 years in that field, most recently as a Project Architect for Robert A.M. Stern. She is a graduate of Columbia University’s Masters of Science in Real Estate Development Program and is a registered architect in New York State. Susi emigrated from Seoul, Korea to Richmond, Virginia at the age of 10.

Susi serves on an advisory board of the Goldman Family, is a director of Apple Bank and sits on YMCA’s Real Estate Committee.

Susi can be reached at syu@llmag.com.

Adam Greene

Managing Director
Development & Construction

Adam Greene is a Managing Director at L&L MAG and oversees development and construction for the company.

Adam is currently leading the redevelopment of 261 11th Avenue, a 1.2 million square foot historic warehouse to office conversion in Chelsea. In addition, Adam is directing the execution of the hospitality program for 425 Park Avenue.

Previously, Adam served as Vice President of Residential Development and Construction at Forest City Ratner Companies, managing the development of Pacific Park Brooklyn, the $4.9 billion, 22-acre mixed-use development in the heart of Brooklyn. His work at Pacific Park included the development of 535 Carlton Avenue, 38 6th Avenue and 461 Dean Street, the tallest modular residential high-rise in the world at time of construction.

Prior to working at Forest City, Adam worked as an architect at Richard Meier & Partners and as a design critic at Cornell University’s Department of Architecture.

Adam received his Bachelor of Architecture from Cornell University and his Master of Architecture in Urban Design from Harvard University. Adam is a Registered Architect in New York and a LEED Accredited Professional.

Adam can be reached at agreene@llmag.com.

Ashley Cotton

Managing Director
Communications & Marketing

Ashley Cotton is a Managing Director at L&L MAG and oversees communications and marketing for the company.

Previously, Ashley served as Executive Vice President at Forest City Ratner Companies, managing all external relations for the company. In that role she oversaw media and community relations for complex development projects such as Pacific Park Brooklyn, Barclays Center, and Tata Innovation Center at Cornell Tech, as well as directing marketing strategy for the company’s multimillion square foot residential, commercial and retail portfolio.

Prior to Forest City, Ashley served as a Senior Policy Advisor to New York City Mayor Michael Bloomberg in the Office of the Deputy Mayor for Economic Development. She also served as a senior aide to now Governor Andrew M. Cuomo on his successful race for Attorney General and in that government office.

Ashley is a graduate of Bowdoin College and received her Masters in Public Administration from Columbia University.  A Brooklyn resident, she serves on the board of BRIC Arts Media and on the advisory board of the Fund for Public Housing. She also serves as the President of the MetroTech Business Improvement District.

Ashley can be reached at acotton@llmag.com.

L&L Holding Company



November 12, 2019 The New York Times

‘She Build’: Creating an All-Women Real Estate Development Team

By: Lisa Prevost Women are pushing to establish more senior roles for themselves in commercial real estate, an area where they are severely underrepresented. As a highly successful woman in New York’s male-dominated development... View Article

October 14, 2019 LIC Post

Developers Working on Comprehensive Waterfront Plan, A Series of Public Meetings to be Held

By: Shane O'Brien A number of developers that plan to build on the Long Island City waterfront–including parcels where the Amazon headquarters was slated to go–are working on a comprehensive waterfront plan. TF Cornerstone,... View Article

October 4, 2019 Vogue

Guests Partied in the Park at Last Night’s Brooklyn Bridge Park Conservancy Gala

By: Danielle Naer Last night a throng of Brooklynites and Manhattanites gathered along the East River in black-tie. The occasion? Twenty years of free public activities at Brooklyn Bridge Park, which not too long ago was a... View Article