Sean Reimer

Managing Director, Capital Markets

Sean Reimer

Managing Director, Capital Markets


Sean Reimer

Sean Reimer serves as a Managing Director for Walker & Dunlop’s New York Capital Markets practice, bringing 13 years of principal side investment experience in both debt and equity transactions. In his role, he focuses on sourcing and structuring debt and equity solutions for all commercial real estate asset classes across the country.

Prior to joining Walker & Dunlop, Mr. Reimer served as a Principal at Square Mile Capital Management where he led the firm’s highest-producing origination team. During his tenure at Square Mile, Mr. Reimer was responsible for the origination of more than $8 billion of debt and equity transactions, resulting in over $2 billion of retained principal investments by the firm. Mr. Reimer gained valuable experience with transaction types such as value-add bridge loans, construction loans, stabilized loans, mezzanine debt, preferred equity, and JV equity across all asset classes and major markets in the U.S.

In his previous roles, Mr. Reimer was a Director at Cantor Fitzgerald in the company’s CMBS lending group, Partner of RL Realty Partners, and Senior Financial Analyst at CBRE.

Mr. Reimer earned his Bachelor of Science in industrial and operations engineering from the University of Michigan with magna cum laude distinction.

Sean Reimer serves as a Managing Director for Walker & Dunlop’s New York Capital Markets practice, bringing 13 years of principal side investment experience in both debt and equity transactions. In his role, he focuses on sourcing and structuring debt and equity solutions for all commercial real estate asset classes across the country.

Prior to joining Walker & Dunlop, Mr. Reimer served as a Principal at Square Mile Capital Management where he led the firm’s highest-producing origination team. During his tenure at Square Mile, Mr. Reimer was responsible for the origination of more than $8 billion of debt and equity transactions, resulting in over $2 billion of retained principal investments by the firm. Mr. Reimer gained valuable experience with transaction types such as value-add bridge loans, construction loans, stabilized loans, mezzanine debt, preferred equity, and JV equity across all asset classes and major markets in the U.S.

In his previous roles, Mr. Reimer was a Director at Cantor Fitzgerald in the company’s CMBS lending group, Partner of RL Realty Partners, and Senior Financial Analyst at CBRE.

Mr. Reimer earned his Bachelor of Science in industrial and operations engineering from the University of Michigan with magna cum laude distinction.

Sean Reimer in the news

Bloomberg

Walker & Dunlop

Wall Street Office-to-Housing Project Gets $779 Million in Loans

January 19, 2026

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

Deals Closed

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