Justin Lamontagne, CCIM, SIOR


“Other than playing Center Field for the Red Sox, I genuinely cannot think of any work I’d rather do (or be any good at) than practice as a Commercial Real Estate Broker. I feel incredibly fortunate and do not take it for granted…” – Justin

Justin Lamontagne, CCIM, SIOR, joined The Dunham Group in 2011. In 2016 he earned Partnership in the firm and, in 2019, was named Designated Broker. He has worked in commercial real estate since 2006 and has successfully brokered transactions in all sectors, specializing in industrial, office and investment properties.

Justin’s services & expertise include:

– Industrial & office Buyer/Tenant strategic planning, site searches & representation

– Industrial & office Seller/Landlord strategic planning & representation

– Commercial property valuation

– Commercial real estate consulting

In 2013, he was named the Maine Commercial Association Realtor of the Year. In 2015 he earned the prestigious CCIM accreditation, an international membership comprised of the world’s top commercial real estate professionals. In 2017 he earned the Society of Industrial & Office Realtor’s (SIOR) designation, a global network of only 3,400 industry leaders. In doing so, he became the 5th broker in the state of Maine to carry both CCIM & SIOR honors. Annually, Justin is the author of The Dunham Group’s Greater Portland Industrial Market Survey, a comprehensive study and inventory of the local industrial market.

Today, Justin is active in several Greater Portland philanthropic and professional organizations. He currently serves on the Board of Directors of the Maine Commercial Association of Realtors (President), Maine Cancer Foundation and Town & Country Federal Credit Union. Justin is also an active member of the Rotary Club of Portland, the Maine Real Estate Development Association, the Portland Chamber of Commerce and the CCIM & SIOR New England chapters.

Justin has a degree from the University of Rochester (BA ’02) and an advanced degree from Boston University (MS ’04).

In his free time, Justin is an avid water skier, snow skier, hiker, rock climber and plays organized softball. He lives in Portland with his wife, Marycelina, their children Katherine and William and their dog, Fenway.