Mark O'Brien Bio, Listings, and Contact Info

Experience

View this Expert's total verified deal history.

Recent deals

View homes bought or sold with Mark O'Brien.

Neighborhood

Home Type

0 Deals

Neighborhood expertise (19)

Discover where this Expert has experience in NYC to see where they can give you hyper-local insights.

Yorkville

Lincoln Square

Sutton Place

Chelsea

Upper West Side

Fort Greene

Lower East Side

East Village

West Village

West Chelsea

Financial District

NoMad

Greenwich Village

Williamsburg

Brooklyn Heights

Flatbush

Kips Bay

Clinton Hill

Lenox Hill

NY License Number

10491210021 (Expires 04/19/2026)

NY Licensed Name

OBRIEN MARK D

Building expertise

Explore the buildings this Expert has successfully closed deals in. This experience is helpful if you're looking to buy or sell in buildings like these.