Keysite Capital Partners is a boutique investment firm, focused on creating real estate finance solutions for owners and investors. Keysite develops long-term relationships, providing fixed and floating-rate subordinate mortgages and mezzanine loans on multiple property types in Manhattan.

At Keysite Capital Partners we
offer reliable, competitively priced
loans coupled with long term
patient capital and deep NYC market
knowledge. We are backed by institutional
capital and take a private banking
approach to borrower relationships.


We provide subordinate mortgages and
mezzanine loans to family offices and
other private owners. We finance the
acquisition or recapitalization
of multifamily, office,

retail and mixed-use properties and
portfolios in Manhattan.


We are led by Barry Seidel and Bruce
Bruene, real estate veterans with 50+
years of combined experience. Partners
Enterprise Capital, a real estate
private equity investment manager,
formed Keysite together with the
management team.



Our focus is on developing long-term relationships and utilizing a private banking model to provide customized real estate financing solutions. By discreetly and confidentially offering flexible products, we can structure a variety of real estate transactions and provide liquidity creation, in a tax-efficient manner, through asset as well as pooled/portfolio-wide solutions.

Opportunities include asset recapitalizations, legacy asset upgrades and new acquisition capital as well as family liquidity/estate planning needs, inter-generational wealth transfers and opportunity to generate cash and distribute to family members or partners.

We also help our bank partners manage their real estate portfolio while accommodating the borrowing needs of valued clients by taking subordinate pieces of loans that we co-underwrite.


•  Subordinate mortgages and mezzanine loans 

  Components include fixed, floating and equity participation 

  LTV portion of the capital structure is usually 50-80% 

  Term, generally 3 – 7 years, available up to 10 years

  Manhattan only

  Property types: Multifamily, office, retail and light mixed use

  Loan proceeds for acquisitions, capital improvements, recapitalizations, redevelopments and distributions



Barry S. Seidel

Barry Seidel is co-CEO of Keysite. Mr. Seidel was Senior Vice President of Republic National Bank of New York (“Republic”), where he began his career as the Assistant to the Chief Executive Officer and held various positions for nearly 20 years. At Republic, Mr. Seidel was responsible for real estate lending, corporate real estate and special investments in real estate for the bank, its private clients and its principal shareholder, Edmond J. Safra.  After the sale of Republic, Mr. Seidel became a partner and member of the investment committee at The Athena Group LLC (“Athena”), a real estate investment company. He was responsible for acquisitions, finance and management of Athena’s real estate opportunity funds.

After his time at Athena, Mr. Seidel co-founded Resolution Asset Management Co. (“RAM”) which merged into Cantor Fitzgerald. RAM was capitalized by an institutional investor to assist healthy banks in acquiring failing banks and assets by providing capital and real estate expertise. Mr. Seidel was Chief Operating Officer of RAM and Managing Director of Cantor Fitzgerald Merchant Banking.   

Mr. Seidel served for over 10 years as a member of the New York State Common Retirement Fund Real Estate Advisory Committee. He received a B.S. in economics from Rutgers University and an M.B.A. in economics and finance from Rutgers Business School.


Bruce K. Bruene

Bruce Bruene is co-CEO of Keysite. Mr. Bruene has over 25 years of experience in real estate and finance.

Mr. Bruene was a senior managing partner of Principal Enterprise Capital (“PEC”). Mr. Bruene joined Principal in 1994 and PEC in 2000. This experience includes entity-level private real estate investing as well as the management of direct equity real estate investments. Prior to his time at Principal, Mr. Bruene spent seven years with John Deere Credit Company.

Mr. Bruene received a B.B.A. in marketing from Iowa State University and an M.B.A. from the University of Washington. Mr. Bruene is a member of the Urban Land Institute and International Council of Shopping Centers.

Daniel E. Miller

Daniel Miller is Vice President of Keysite. Prior to joining Keysite, Mr. Miller spent four years at Halpern Real Estate Ventures, a private equity fund with a focus on development and high-yield structured investing in the New York metropolitan area. Prior to that, he spent two years at Rubenstein Partners, a Philadelphia-based real estate private equity firm focused on value add office investments and advisory services throughout the Eastern United States.

Mr. Miller received a B.S. in economics with concentrations in real estate, finance, and entrepreneurship from the Wharton School at the University of Pennsylvania.

Jenny Laboy-Brace

Jenny Laboy-Brace is the Office Manager/Executive Assistant of Keysite.

Partners Enterprise Capital, LLC

Partners Enterprise Capital, LLC (“PEC”) is a real estate private equity investment manager. PEC formed Keysite in partnership with the management team. PEC invests on behalf of an institutional client in real estate through the creation, management and ownership of entity-level investments in real estate operating and lending companies.


Signature Bank, Keysite Capital Provide $78M Refi for Morningside Heights Portfolio
Commercial Observer – November 5, 2018

Signature, Keysite Team Up to Supply $43M Debt on FiDi Apertment Building
Commercial Observer – November 14, 2018