Sean Reimer

Senior Managing Director, Capital Markets | Institutional Advisory

Sean Reimer

Senior Managing Director, Capital Markets | Institutional Advisory


Sean Reimer

Sean Reimer is a senior managing director of Capital Markets and co-head of Institutional Advisory at Walker & Dunlop and is based in New York, New York. In this role, he is responsible for sourcing and structuring debt and equity solutions across all commercial real estate asset classes nationwide. He has more than 13 years of principal-side investment experience in debt and equity transactions.

Prior to joining Walker & Dunlop, Reimer served as a principal at Square Mile Capital Management, where he led the firm’s highest-producing origination team. During his tenure, he originated more than $8 billion in debt and equity transactions, resulting in more than $2 billion of retained principal investments by the firm. His experience spans value-add bridge loans, construction loans, stabilized loans, mezzanine debt, preferred equity, and joint venture equity across major U.S. markets. Before that, he served as a director in Cantor Fitzgerald’s CMBS lending group. Earlier in his career, he was a partner at RL Realty Partners and a senior financial analyst at CBRE.

Reimer earned a bachelor’s degree in industrial and operations engineering from the University of Michigan, graduating magna cum laude.

Sean Reimer is a senior managing director of Capital Markets and co-head of Institutional Advisory at Walker & Dunlop and is based in New York, New York. In this role, he is responsible for sourcing and structuring debt and equity solutions across all commercial real estate asset classes nationwide. He has more than 13 years of principal-side investment experience in debt and equity transactions.

Prior to joining Walker & Dunlop, Reimer served as a principal at Square Mile Capital Management, where he led the firm’s highest-producing origination team. During his tenure, he originated more than $8 billion in debt and equity transactions, resulting in more than $2 billion of retained principal investments by the firm. His experience spans value-add bridge loans, construction loans, stabilized loans, mezzanine debt, preferred equity, and joint venture equity across major U.S. markets. Before that, he served as a director in Cantor Fitzgerald’s CMBS lending group. Earlier in his career, he was a partner at RL Realty Partners and a senior financial analyst at CBRE.

Reimer earned a bachelor’s degree in industrial and operations engineering from the University of Michigan, graduating magna cum laude.

Sean Reimer in the news

Commercial Observer

Walker & Dunlop

Circle F Capital Recaps One Park Row, Lands $77M Refi

December 31, 2025

Multi-Housing News

Walker & Dunlop

Manhattan Office-to-Residential Project Lands $867M Financing

December 23, 2025

Walker & Dunlop

Walker & Dunlop Structures $867 Million Financing Package for the Largest Single-Building, Office-to-Residential Conversion in the U.S.

December 22, 2025

Multi-Housing News

Walker & Dunlop

Naftali JV Obtains $525M for Brooklyn Condo Project

December 19, 2025

ReBusiness Online

Walker & Dunlop

Walker & Dunlop Arranges $285M Loan for Refinancing of Brooklyn Multifamily Property

December 8, 2025

Walker & Dunlop

Walker & Dunlop Arranges $285 Million Bridge Loan for Greenpoint Central in Brooklyn

December 8, 2025

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