John Flaherty | Colliers International | Boston

John Flaherty

Assistant Vice President

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Professional Summary

After graduating from Merrimack College in 2016, I joined Colliers International Boston as an intern with the Urban Brokerage leasing team. Based on strong performance in that role, I was hired shortly thereafter and devoted most of my time representing tenants throughout the Boston and Cambridge markets. My time with the Urban Brokerage team helped me build a strong foundation and understanding of the complexity of the Boston marketplace as well as the commercial real estate industry as whole. In 2018, I transitioned from the leasing arena to the investment sales side of the business with a focus on the disposition of multi-family assets in and around Greater Boston.

As a member of the Multi-Family Advisory Group, I work with a variety of clients, including national developers, high net worth family businesses, and local owners and operators. No matter who our team is representing, we strive to provide our clients with the highest level of customer service, from valuation, through the marketing process, and up to and beyond the successful disposition of the asset.

Outside of the office, I enjoy golf, basketball, spending time on Cape Cod, and of course, rooting for our local Boston sports teams.


Merrimack College - Bachelor of Arts in Marketing and Communications

Memberships & Involvements

American Ireland Fund


Service Lines
Landlord Representation, Tenant Representation
Property Types

My Team

My Team

Featured Research
Jan 17, 2020
2019 Q4 Multi Family Viewpoint Report Boston Colliers
The Boston economy remained strong throughout 2019 and carries great momentum into 2020. Rental rates and condo sales continue to push boundaries and set new regional records in greater Boston.
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Aug 26, 2019
2019 Q2 Multi Family Viewpoint Report Boston Colliers
The Boston market remains hot in all respects, faring very well during this economic cycle. Rental rates and condo pricing continue to set regional records in metro Boston and the surrounding areas.
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Featured News
Apr 3, 2020
Colliers International sold and arranged financing for two Harvard Square buildings
Colliers International recently announced its Capital Markets team facilitated the sale of and arranged financing for 17 Story Street in Cambridge’s desirable Harvard Square neighborhood. First Cambridge Capital purchased the .32-acre site from 17 Story, LLC for $16.1 million.
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Aug 19, 2019
Colliers International sells 112 unit refurbished mill building in Millbury
Boston, MA, September 11, 2019 – Colliers International recently announced that its Capital Markets group facilitated the sale of Cordis Mills, a 112-unit, fully renovated luxury apartment complex located at 65 Canal Street, Millbury, Massachusetts.
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Aug 19, 2019
Colliers International sells the former Alexandra Hotel
Colliers International recently announced that its Capital Markets group facilitated the sale of the former Alexandra Hotel, located at 1767-1769 Washington Street in Boston’s thriving Roxbury neighborhood.
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Jun 17, 2019
Colliers International brings Green Mountain Campus to market
Boston, June 17, 2019 – Colliers International’s Capital Markets team of Senior Vice President Christopher Sower, Vice President Bruce Lusa, Assistant Vice President Jonathan Bryant, and Associate John Flaherty recently brought to market the picturesque 155-acre Green Mountain Campus located in Poultney, Vermont.
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