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

Walker & Dunlop

Walker & Dunlop

Walker & Dunlop Arranges $1.72 Billion Financing for Starwood Capital Group

April 15, 2026

Walker & Dunlop

Walker & Dunlop Arranges $104.5 Million Construction Financing for Ritz-Carlton Savannah

April 6, 2026

Yield PRO,

Walker & Dunlop

Walker & Dunlop Arranges Joint Venture Equity Partnership and Construction Financing for $132M Multifamily Development in Richmond Virginia

April 2, 2026

Commercial Observer

Walker & Dunlop

Cottonwood Group Provides $102M to Build Salt Lake City Luxury Hotel

March 30, 2026

Walker & Dunlop

Walker & Dunlop Arranges Joint Venture Equity Partnership and Construction Financing for $132 Million Multifamily Development in Richmond’s Scott’s Addition District

March 30, 2026

CRE Market Beat

Walker & Dunlop

Dermot, Affinius Secure $283M Freddie Mac Refi for 101 West End on Upper West Side

March 18, 2026

Deals Closed

The Ritz-Carlton Savannah
Multifamily Community
101 West End Avenue
The Quaye at Palm Beach Gardens
450 Lexington Avenue
Alexander Crossing
111 Wall Street
80 Wharf Way
Greenpoint Central

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