Since 2000, the DSF Group has invested more than $4.5 billion in multi-family real estate. With offices in Boston and Washington DC, and decades of experience, we strive to create unique, award winning properties designed to provide strong risk-adjusted returns.
Our three founding partners—Art Solomon, Josh Solomon and Thomas Mazza—are entrepreneurial owners who are passionate about what they do and enjoy being hands-on operators. The DSF Group takes a vested interest in the success of every project and is committed to being there every step of the way.
The partners of the DSF Group are involved on a day-to-day basis with every asset, working and collaborating side-by-side with architects, engineers, city officials, and contractors. The relationships we’ve established over the years provide us with advantages in sourcing opportunities, negotiating transactions, and navigating complex regulatory environments.
With over 125 years of combined experience in every facet of multi-family real estate investing, the partners bring a unique perspective, level of expertise, and entrepreneurial sensibility that helps maximize opportunities.
Before co-founding the DSF Group in 2000, Arthur was senior partner and head of both real estate investment banking and real estate principal investments at Lazard Frères, the global investment firm. He also served as CEO of Lazard’s five real estate funds.
Prior to Lazard, Arthur founded and served as the senior partner of Drexel Burnham Lambert’s real estate investment banking group. His experience also includes serving as Chief Financial Officer of Fannie Mae, where he created its mortgage-backed securities program, and President/CEO of the Berkshire Group, a national real estate and financial services firm.
Earlier in his career, Arthur was a tenured professor at the Massachusetts Institute of Technology and Executive Director of the Harvard-MIT Joint Center for Urban Studies. He holds a B.A. from Brown University, an M.A. from Trinity College, and a Ph.D. from Harvard University.
As Head of DSF Groups investments, Mr. Solomon is in charge of the company’s acquisition and development activities. He also evaluates and negotiates new investment opportunities and manages the business plan of each investment asset. Since the DSF Group’s inception, he has been responsible for more than $4.5 billion in new investments.
Prior to co–founding the DSF Group, Mr. Solomon served as a Vice President in the Partners Group of AEW Capital Management, where his group acquired commercial and multifamily properties throughout the Northeast and Mid–Atlantic United States.
Mr. Solomon is very active in the real estate industry and within his community. He sits on numerous boards and committees such as NAHB’s Multifamily Leadership Board, Heading Home Inc. which pioneered programs to end homelessness in Greater Boston and the Nashoba Brooks School. Mr. Solomon is also the owner of the Hartford Yard Goats, the AA affiliate of the Colorado Rockies. He lives with his wife Nancy and four children in the Boston area.
Mr. Solomon earned a B.A. from Northeastern University and an M.B.A. in Real Estate and Urban Land Economics from the University of Wisconsin in Madison.
As COO and head of Asset and Portfolio Management, Thomas manages the day-to-day operations of the DSF Group, including the financing, management, leasing, and disposition activities for all the firm’s properties.
Before co-founding the DSF Group, Thomas was with AEW Capital Management, where he was Vice President of Acquisitions and Portfolio Management, heading a team responsible for acquiring and managing real estate investments throughout the East Coast. His experience also includes serving as Vice President/Shareholder, Acquisitions and Dispositions at Copley Real Estate Advisors. Thomas is very active in the multi-family industry and within his community in the Boston area. He sits on numerous boards, including the NAHB Multifamily Leadership Board, and he is an active member of the National Multi-Housing Council and ULI.
Thomas is a Chartered Financial Analyst and has a B.A. in mathematics from College of the Holy Cross, as well as an M.B.A. from Boston College.
The DSF Group and the projects it has developed have earned many prestigious industry awards.
March 2025 | Yield Pro
Representatives of CBRE, led by Simon Butler, Biria St. John, John McLaughlin, and Brian Bowler announced the sale of SoMa Apartments, a 347-unit, workforce housing apartment community located in Boston’s Southern Mattapan neighborhood.
Download PDF
January 2025 | Green Street
The DSF Group Acquires Town Square Apartments at Mark Center in Alexandria, VA
Download PDF
September 2024 | Green Street
The DSF Group Acquires Woodway at Trinity Centre Apartments in Centreville, VA
Download PDF
January 2024 | CBRE
The DSF Group Acquires St. Johns Wood in Reston, VA
Download PDF
December 2023 | connectcre
The DSF Group Acquires Talia Apartments in Marlborough, MA
March 2023 | New England Real Estate Journal
The DSF Group Sells 246-Unit Multifamily Community in Milford, CT
February 2023
The DSF Group Acquires 240-Unit Apartment Community in Hopkinton, MA
August 2022 | Globe Street
The DSF Group Sells the 408-Unit Halstead Station in New Rochelle, NY
August 2022 | Yield Pro
305-Unit Apartment Project in MA sold to The DSF Group for $77M
Download PDF
August 2022 | connectcre
The DSF Group Sells 640-Unit Apartment Community for $164.6M
July 2022 | Real Estate NJ
212-Unit Luxury Apartments in NJ sold to The DSF Group for $82.5M
Download PDF
April 2022 | CBRE
The DSF Group Sells 1,020-Unit Apartment Community
April 2022 | New England Real State Journal (NEREJ)
DSF adds Avalon East Norwalk to their portfolio
April 2022 | Real Estate Business Online
DSF Acquires 448 Units in Manchester, NH
Download PDF
February 2022 | Connect CRE
The DSF Group Drops $87M for 304-Unit Multifamily in Milford, MA
Download PDF
October 2021 | Multi-Housing News
Promenade Apartments sold to DSF Group for $105M
Download PDF
September 2020 | The DSF Group
The DSF Group purchased a 256 unit multifamily community in Burlington, MA
December 2019 | Real Estate Fund Intelligence
DSF Group Wins Real Estate Fund Intelligence (REFI) Value-Added Fund Manager of the Year Award
Download PDF
June 2019 | Real Estate Fund Intelligence
The DSF Group has acquired a 1,020 Unit apartment complex in suburban Boston
Download PDF
February 2019 | Real Estate Finance and Investment
Halstead New Rochelle, Multifamily Equity Deal of the Year; Finalist
February 2019 | NAIOP Commercial Real Estate Development Association
Halstead New Rochelle, Westchester County Multifamily Sale of the Year
February 2019 | CBRE
The DSF Group purchased Hilltop Ridge and The Highlands, a 640 Unit apartment community located in Manchester, NH
Download PDF
December 2018 | HFF
Holliday Fenoglio Fowler, L.P. (HFF) announced that it has represented The DSF Group in the $259.375M sale of Halstead New Rochelle Metro North, 40-story, 588-Unit, Class A apartment tower in New Rochelle, Westchester County, NY
Download PDF
October 2018 | The DSF Group
The DSF Group announced the sale of Halstead Dulles, a 244 Unit, multifamily community in Herndon, VA
October 2018 | The DSF Group
The DSF Group purchased a 180 Unit multifamily community located in Abington, MA.
October 2018 | Multi-Housing News
Halstead Malden Square, 2018 Best Value-Add Renovation
Download PDF
July 2018 | CBRE
The DSF Group purchased Fairlawn Apartments, a 347 Unit apartment community located in Boston, MA
Download PDF
March 2018 | CBRE
The DSF Group purchased the Talleyrand Apartments, a 300 unit multifamily community located in Tarrytown, New York.
Download PDF
March 2018 | Multi-Housing News
CBRE/New England's Capital Markets team facilitates the sale of Halstead Westborough to Harbor Group International for $75.8M.
Download PDF
February 2018 | Real Estate Finance and Investment
Halstead Square, Multifamily Equity Deal of the Year; Winner
December 2017 | CBRE
The DSF Group purchased the Avalon Milford community for $50.5M, a 246-apartment community located in Milford, CT
Download PDF
October 2017 | NAHB
Halstead Malden Square, 2017 Best Repositioning of a Multifamily Asset; Finalist
October 2017 | NAHB
The Lanes at Halstead Square, 2017 Best Community Amentities; Finalist
October 2017 | Newmark Knight Frank
Newmark Knight Frank orchestrates $130M transaction of Halstead Danvers on behalf of The DSF Group to Harbor Group International
Download PDF
October 2017 | Washington Business Journal
The DSF Group Sells The Rockwell and The Lanes at Halstead Square.
Download PDF
August 2017 | CBRE NE Multifamily Group
CBRE/New England's Capital Markets team announced the sale of Halstead Tewksbury to JRK Property Holdings for $56M
Download PDF
June 2017 | The DSF Group
The DSF Group announced the grand re-opening of Halstead Malden Square, a transit-oriented multifamily apartment community located within walking distance to the Orange Line MBTA Transit Station just outside of Boston, MA. The DSF Group purchased the property in 2016 and immediately commenced a complete renovation of the community’s common area amenity spaces and implemented their Halstead brand of high quality amenities and technology.
Download PDF
October 2016 | NAHB
Halstead Square, 2016 Best Community Amenities
February 2017 | LoHud
The DSF Group sells Halstead White Plains for $34.25M to Ginsburg Development.
Download PDF
November 2016 | Globe Street
The DSF Group purchased the La Rochelle Apartments for $148.5M, a 412-unit, 25-story luxury tower in Westchester County.
Download PDF
October 2016 | Globe Street
The DSF Group sells Halstead Arlington for $102M to Avalon Bay
Download PDF
August 2016 | Boston Real Estate Times
CBRE/New England's Capital Markets team announced the sale of 480 Main Street, a 195-unit, 100% market-rate, infill apartment community located in Malden, Massachusetts, to The DSF Group
Download PDF
February 2016 | Business Wire
The DSF Group sells Halstead 800 Madison for $127.9M to Avalon Bay
Download PDF
October 2015 | NAHB
The DSF Group, 2015 Multifamily Development Firm of the Year; Finalist
October 2015 | NAHB
Halstead Square, 2015 Best Mixed Use Community; Silver Award
June 2015 | Best of Herndon
Halstead Dulles, 2015 Best of Herndon Apartment Community
April 2015 | Eagle Tribune
Halstead Danvers holds grand re-opening.
Download PDF
February 2015 | Commercial Real Estate News
DSF Group has paid $63.5M for Flanders Hill at Westborough, a 280 unit apartment property in the Boston suburb of Westborough, MA.
Download PDF
May 2014 | Multi-Housing News
The DSF Group, 2014 Best Development Company of the Year
June 2014 | Best of Herndon
Halstead Dulles, 2014 Best of Herndon Apartment Community
October 2014 | NAHB
Halstead Square, 2014 Best Mixed-Use Community
October 2014 | NAHB
The DSF Group, 2014 Multifamily Development Firm of the Year; Finalist
October 2014 | The New York TImes
Here in suburban Vienna, about 16 miles west of downtown Washington, Joshua Solomon’s DSF Group is remaking a congested but nondescript intersection into a haven for young adults of the millennial generation. Like many other developers who survived the housing bust, he now expects a coming wave of renters who intend to stay that way for a while to help lead the industry to a brighter future.
Download PDF
October 2014 | The Real Deal
Construction of multifamily units is now at its highest rate in 25 years, while single-family home construction has barely reached pre-recession levels, the New York Times reported.
Read Article
August 2014 | The Patch
The DSF Group is proud to announce the Grand Opening of the luxurious amenity spaces at the Halstead New Rochelle Metro North apartment complex in New Rochelle, New York.
Download PDF
July 2014 | Commercial Property Executive
DSF Group has acquired Avalon Danvers, a 433-unit multi-family complex in the northeastern Massachusetts town of Danvers, for $108M from Avalon Bay Communities.
Download PDF
October 2013 | NAHB
Halstead Square, 2013 Best Mixed Use Community; Finalist
June 2013 | Best of Herndon
Halstead Dulles, 2013 Best of Herndon Apartment Community
January 2014 | Mutli Housing News
The DSF Group Acquires a Class A Community in Hoboken, NJ for $107.5M
Download PDF
November 2013 | HFF
HFF closes $210M sale of Avalon on the Sound East in New Rochelle, New York to The DSF Group.
Download PDF
August 2013 | Boston Globe
DSF Group affiliate buys the Shawsheen Place at Tewksbury apartment complex for $47M.
Download PDF
June 2013 | The DSF Group
The DSF Group purchased the 124-unit asset located at 25 Martine Ave. in White Plains, NY for $34 million, from Korman Communities and BlackRock, Inc. At closing, the property was introduced to the market as the Halstead White Plains Metro North.
June 2013 | The Patch
The DSF Group donated 50 apartments worth of furniture and home goods to Furniture Sharehouse, the largest donation to date during the non-profit's five year experience. Furniture Sharehouse provides free furniture to economically disadvantaged individuals and families living in Westchester, County, giving them the basic household furnishings that enable them to rebuild their lives and live with dignity.
Download PDF
DSF Group, the National Association of Home Builders (NAHB) 2011 Multifamily Development Firm of the Year, announced the launch of Halstead Dulles, a community redesigned with extensive new amenities.
June 2012 | Delta Associates
Halstead Square - The Rockwell, 2012 Best Northern Virginia Apartment Community
June 2012 | NAHB
Halstead Square, 2012 Best Design Gold Award
June 2012 | NAHB
Halstead Square, 2012 Best Mixed Use Community; Finalist
November 2012 | Delta Associates
Halstead Square - The Rockwell, 2012 Best Lease-Up Pace for a Northern Virginia Apartment Community
December 2012 | HFF
HFF announced today that it has closed the sale of Metropolitan of Fairfax, a 244-unit, Class A multi-housing community in Herndon, Virginia. HFF marketed the property exclusively on behalf of the sellers, Cornerstone Real Estate Advisors and Kettler, Inc.. A fund advised by The DSF Group purchased the asset for $59.25 million free and clear of existing debt. Upon closing the property was introduced as the Halstead Dulles.
January 2012 | NAHB
Halstead Square, 2011 Best Mixed Use Community Site Plan
January 2012 | NAHB
The DSF Group, 2011 Multifamily Development Firm of the Year
Vienna, VA – October 17, 2011 – Today DSF Group, the National Association of Home Builders (NAHB) 2011 Multifamily Development Firm of the Year, announced the grand opening of Halstead Square, a distinctive new mixed-use development of restaurants and retail at the Dunn Loring Metro.
January 2011 | NAHB
The DSF Group, 2010 Multifamily Development Firm of the Year; Finalist
November 2009 | Delta Associates
Halstead Arlington, 2009 Best Mid-Atlantic Mid-Rise Apartment
October 2009 | NAHB
The DSF Group, 2009 Multifamily Development Firm of the Year; Finalist
November 2009 | Delta Associates
Halstead Arlington has been selected as the winning property for Delta Associates' 13th Annual Apartment and Condominium Industry Awards for Excellence in the category of Best Mid-Atlantic Mid-Rise Apartment Community.
November 2008 | Washington Business Journal
The Halstead Tower, 2008 Deal of the Year; Finalist
November 2008 | Insitutional Investor
The DSF Group, Developer of the Year; Finalist
October 2008 | NAHB
2008 Multifamily Development Firm of the Year; Finalist
October 2007 | NAHB
The Halstead Tower, 2007 Best Rental Development 5 stories and above
June 2007
The Alexander, 2007 Special Achievements in Overall Amenities
June 2007
The Halstead Tower, 2007 Best High Rise Rental Units
November 2007 | Delta Associates
The Halstead Tower, 2007 Best Mid-Atlantic High-Rise Apartment
October 2007 | NAHB
The DSF Group, 2007 Multifamily Developer of the Year; Finalist
December 2007
The Smart Growth Alliance's Project Recognition Jury has recognized Halstead Arlington Mixed Use as a Smart Growth Proposal.