David Alperstein
BROKERAGE
Bringing over 20 years of management consulting and real estate industry experience, David leads our brokerage practice; providing transactional and strategic guidance to our valued clients in real estate asset marketing, property evaluations and lease negotiations. David has been actively involved in the leasing of over 7 million square feet of space on behalf of both landlords and tenants.
Joseph Delogu
BROKERAGE / DEVELOPMENT
Joe is a recognized leader in the real estate industry with over 30 years of leasing, development and investment management experience. During this time, Joe has successfully completed more than 3,500 transactions totaling more than 30 million square feet. Joe is a leader on our investment platform and one of the FD Stonewater principals in charge of providing third-party transaction advisory services to owners with buildings leased to the federal government or those seeking to enhance their relationship with governmental agencies.
Richard Mann
BROKERAGE / DEVELOPMENT
Richard serves as the principal charged with strategic and transactional leadership for leasing and investment projects. Richard has successfully negotiated over 400 transactions totaling over 14 million square feet and has been active in the acquisition and financing of over $2B of real estate. Richard’s experience, success and unique ability to navigate complex transactions, particularly in the intense competition for federal contracts, is invaluable to our clients.
Andrew Schwartzman
INVESTMENT
Andrew possesses a broad real estate background having spent his entire career within the brokerage, development and investment arenas. As a leader in FD Stonewater’s investment practice, this diversity gives Andrew the ability to analyze, underwrite and identify sound investment opportunities for the company and our partners.
David Stade
INVESTMENT / ADVISORY
Dave brings over 15 years of principal-ownership and advisory experience from both the real estate investment banking arena and co-founding and managing a successful real estate investment firm. At FD Stonewater, Dave’s vast expertise and intellectual approach, is highly-valued in leading our investment and asset management platforms.
Jeffrey Toporek
INVESTMENT / ADVISORY
Jeff is a leader for our investment and asset management platforms. In nearly two decades, Jeff has completed over $7 billion of real estate transactions and has a recognized expertise in managing investments in complicated real estate assets and successfully structuring complex deals.
Claiborne Williams
DEVELOPMENT / INVESTMENT
Claiborne serves as the head of development and construction management at FD Stonewater. Having completed base building and tenant construction projects totaling over 2.5 million square feet, Claiborne is charged with establishing the firm’s development strategy, managing our principal-owned development projects and leading all 3rd party construction management projects.
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OUR PEOPLE
Left to right: David Stade, Joseph Delogu, David Alperstein, Richard Mann, Andrew Schwartzman, Claiborne Williams, and Jeffrey Toporek

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David Alperstein
BROKERAGE
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Joseph Delogu
BROKERAGE / DEVELOPMENT
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Richard Mann
BROKERAGE / DEVELOPMENT
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Andrew Schwartzman
INVESTMENT
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David Stade
INVESTMENT / ADVISORY
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Jeffrey Toporek
INVESTMENT / ADVISORY
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Claiborne Williams
DEVELOPMENT / INVESTMENT