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Printed from StreetEasy.com at 06:16 PM, Dec 19 2025
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Mark Hannigan

Licensed Real Estate Broker

Realty 123 Inc

Experience

View this agent's total verified deal history.

About Mark Hannigan

Mark Hannigan is the Broker / Owner of Realty 123 Inc. Mark has been providing Real Estate Services, Guidance and Professionalism to New York buye...
Mark Hannigan is the Broker / Owner of Realty 123 Inc. Mark has been providing Real Estate Services, Guidance and Professionalism to New York buyers and sellers since 1999. His experience and knowledge is time tested and results driven. Our marketing include Easy Street, MLS, Realtor.com, , Trulia.com, Zillow.com, Google, Google Base, Yahoo.com, Oodle.com, Homes.com, The Real Estate Book.com, VAST.com, CyberHomes.com, HotPads.com, FrontDoor.com, Virtual Tour, Video Tour, Youtube Video Posting, Personal Property Website, Listingbook, Property Blogging and more.

NY License Number

10311200818 (Expires 02/15/2027)

NY Licensed Name

HANNIGAN MARK S