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Machine Investment Group
Eric Rosenthal co-founded Machine Investment Group in 2020, deploying ~$2.4B across 70 middle-market real estate special situations and distressed deals.
Machine Investment Group
Machine Investment Group was launched in 2020 by Eric Rosenthal and the late Andy Kwon, both alumni of Garrison Investment Group. The firm was built on a shared vision and more than a decade of collaboration at Garrison, where Rosenthal led real estate originations and Kwon headed the real estate group. Kwon passed away suddenly in March 2021, and the firm operates in his legacy with a philosophy shaped by his analytical, steady-hand approach to opportunistic investing. The firm targets value-add, opportunistic, distressed and special situations across all major property sectors in the United States. Machine focuses primarily on the middle market, with equity checks typically between $15 million and $50 million, and operates across the top 30 US markets and shadow primary markets. Its mandate spans distressed debt, complex capital structures, and traditional asset repositioning. The firm emphasizes current cash flow and arbitrage opportunities, seeking entry points at a significant discount to replacement cost or through cap rate differentials. Machine's sourcing model relies on direct relationships and a reputation as a reliable counterparty, cultivated over nearly 70 transactions. Machine’s senior management team brings together experience managing multiple real estate funds and co-investment vehicles totaling roughly $2.4 billion on behalf of institutional investors. The team includes Partner Kristi Herschenfeld, who oversees asset management and previously held roles at Garrison and SL Green Realty; Partner and CFO Matthew Kane, a former Garrison controller and PwC auditor; and Partner Michael Librett, who leads acquisitions after roles at Meadow Partners and Deutsche Bank's Special Situations Group. Charlie Leonard joined as Partner for Investments and Capital Formation, bringing experience from Rockwood Capital and CIM Group. In 2025, the firm added Vinny Ribeiro as an Accounting Associate from PwC and Jack Kite as an Investment Associate from Wells Fargo Securities. Machine stands apart through its explicit commitment to what it calls "unemotional, fact-based analysis" rooted in cycle-tested discipline — a posture codified during the Garrison era and carried forward under Rosenthal's leadership. The firm's governance reflects this: it was founded as a partnership by operators who had already worked together through a full credit cycle, and its post-Kwon continuity plan embedded the founding philosophy directly into the operating culture rather than into a single individual.
General information
Firm type
Asset Manager
Year founded
2020
AUM
Undisclosed
Location
Region
North America
Country
United States
City
New York
Corporate office
New York, NY, United States
Principals
Eric Rosenthal
Co-Founder & Managing Partner
Andy Kwon
Co-Founder (deceased, March 2021)
Kristi Herschenfeld
Partner, Asset Management
Matthew Kane
Partner, CFO & Head of Operations
Matthew Lambert
Partner, General Counsel & CCO
Michael Librett
Partner, Acquisitions
Charlie Leonard
Partner, Investments & Capital Formation
Sector focus
Frequently asked questions
Who runs investment decisions at Machine Investment Group?
Co-Founder Eric Rosenthal serves as Managing Partner and leads the firm. Michael Librett, Partner for Acquisitions, oversees investment sourcing and leads the acquisitions team. Charlie Leonard, Partner for Investments and Capital Formation, also helps develop investment strategy. The firm's senior team previously worked together at Garrison Investment Group.
What investment stages and deal sizes does Machine Investment Group typically target?
Machine targets middle-market real estate assets requiring equity checks typically between $15 million and $50 million. The firm focuses on value-add, opportunistic, distressed, and special situations across the top 30 US markets and shadow primary markets. Investments include distressed debt, complex capital structures, and traditional asset repositioning.
Does Machine Investment Group raise third-party capital or operate as a single-family office?
Machine is not a single-family office. It is a real estate investment platform that has deployed approximately $2.4 billion across multiple funds and co-investment vehicles on behalf of institutional investors, per the firm's own disclosure.
What sectors does Machine Investment Group avoid?
The firm does not publish explicit sector exclusions. Its public materials indicate investment across all major property sectors, with selection driven by entry price, current cash flow, and downside protection rather than a list of prohibited property types.
How does Machine Investment Group source its deals?
Machine relies on direct sourcing relationships and its reputation as a reliable counterparty. The firm states its network has been cycle-tested, with deal flow generated through the senior team's long tenure in commercial real estate origination, special servicing, and institutional investment roles at firms such as Garrison, Gramercy Capital, and Meadow Partners.
What is Machine's relationship to Garrison Investment Group?
Machine was founded in 2020 by former Garrison executives Eric Rosenthal and Andy Kwon. Several other senior team members — including Kristi Herschenfeld, Matthew Kane, and Matthew Lambert — also previously held senior roles at Garrison. Machine is an independent firm with no disclosed ownership or economic ties to Garrison.
What happened to co-founder Andy Kwon?
Andy Kwon passed away suddenly in March 2021 from a brain aneurysm, roughly nine months after co-founding Machine with Eric Rosenthal. The firm states it continues in his legacy and remains committed to the investment philosophy and culture he helped shape.
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