Maggie Gold Seelig

Maggie Gold Seelig has distinguished herself as a leading broker specializing in luxury residential real estate sales. Having represented some of the most discerning buyers and sellers over the past 15 years, Maggie has become known as the ultimate and discreet real estate professional.  Clients value her transparent dealings, deep market knowledge, analytical/strategic thinking,  extensive network of connections, fierce advocacy and steady (yet, fun!) disposition.  

A New York City native and lawyer by training, Maggie founded MGS Group Real Estate after working at Coldwell Banker.  Widely recognized in the industry as a “top broker” for those seeking to buy or sell high-end properties, Maggie knows that being nimble and truly able to think ‘out of the box’ are critical to achieving her clients’ objectives.  With her finger on the pulse of the market, Maggie is singularly focused on negotiating deal terms that exceed client expectations.  Indeed, Maggie provides more than clear and sound real estate advice -- she offers strategic thinking that enables her clients to realize every advantage.  Over her career, Maggie has advised and brokered some of largest, record breaking and most complicated real estate transactions in her core markets. 

Maggie resides with her family in Harvard Square - Cambridge. She has served on several philanthropic Boards and Committees over the past 20 years, including those for the Institute of Contemporary Art, The JCC of Greater Boston and The Gold Foundation fostering Humanism in Medicine. Currently Maggie is serving on the Board of Advisors of The American Repertory Theatre and also as a member of the Board of Philanthropic Overseers of Boston Children’s Hospital. #2 Individual Agent in Boston

#3 Individual Agent in Massachusetts

Top 0.06% Companywide

Highest Sale in NYC in 2023

RealTrend's The Thousand, Wall Street Journal 2019-2022

Top Producer, Boston Magazine 2019-2023

150 Most Influential Bostonians 2023, Boston Magazine

Hollywood Reporter NYC Power Broker, 2024

Founding Member, The Private List

Luxe List, Boston Common

YPO, New York Metro Chapter

Adam Modlin

Modlin Group is a boutique real estate agency in New York City. Founded by Adam D. Modlin in 1999, the company has a 20-year plus track record for closing high profile complex transactions. The company has built its business solely on developing personal relationships with clients which span around the globe. Modlin Group has a reputation for its commitment to excellence, character, integrity and respect. The company has a niche for representing Townhouses, Penthouses and large residences. Modlin Group operates more like a family office than a traditional brokerage company. With a personal touch, Modlin Group plays the role as advisor and partner guiding clients with discretion, trust, privacy, professionalism and passion as its core values.

While Modlin Group’s expertise is in New York, the company has developed alliances and advises clients in the Hamptons, Boston, Miami, Los Angeles, Aspen, London, Tel Aviv and beyond.

Recently, Modlin Group represented the sale of the most expensive single-family townhouse in the history of New York, 14-16 East 67 th Street for $77 million.