Mainsail Management Inc.

Mainsail Management Inc. Founded by Jim Keliher, Mainsail Management Inc. is a Boston real estate investment and management firm with a history of surpassing expectations.

Our first love is the Hub. For over three decades, we’ve been using our knowledge of the local market to unearth investment and management opportunities in the city’s most desirable neighborhoods. Highlights of Mainsail’s work include:
Millions in investments, including the transformation of fashionable brownstones in the South End, Back Bay and Beacon Hill
High-end development of 150+ residential

buildings
Luxury construction on thousands of square feet of residential and commercial property
Property management of 100+ units and numerous income properties in ownership.

It’s all in the details. With help from & this amazing floating stair came together @ 142 Beacon Street. ...
03/05/2020

It’s all in the details. With help from & this amazing floating stair came together @ 142 Beacon Street.

Incredible views from every room, check out the Penthouse at 142 Beacon Street. @ Back Bay, Boston
03/04/2020

Incredible views from every room, check out the Penthouse at 142 Beacon Street. @ Back Bay, Boston

Shaken or Stirred? Both come with a view. @ Back Bay, Boston
03/03/2020

Shaken or Stirred? Both come with a view. @ Back Bay, Boston

Little bit of kitchen envy today. The Penthouse @ 142 Beacon Street is looking amazing. Only the finest materials & an i...
03/02/2020

Little bit of kitchen envy today. The Penthouse @ 142 Beacon Street is looking amazing. Only the finest materials & an incredible view. @ Back Bay, Boston

Working from home wouldn’t be too bad in this incredible penthouse study @ 142 Beacon Street. @ Back Bay ...
03/02/2020

Working from home wouldn’t be too bad in this incredible penthouse study @ 142 Beacon Street. @ Back Bay Beacon Street

The weekend is here! Let’s trade that green beer for some hand shaken cocktails and bubbly..
03/15/2019

The weekend is here! Let’s trade that green beer for some hand shaken cocktails and bubbly..

Master bath goals... Calacatta Gold Slab shower in this elegant Back Bay residence.
03/12/2019

Master bath goals... Calacatta Gold Slab shower in this elegant Back Bay residence.

Time to bring out the wine for the weekend! didn’t miss any details on this one, it was great working with you! This cu...
03/08/2019

Time to bring out the wine for the weekend! didn’t miss any details on this one, it was great working with you! This custom residence is simply stunning.

Address

251 Newbury Street
Boston, MA
02116

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Website

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