Maine’s Commercial Real Estate Specialists
Find your property
Put Our Collaborative Approach to Work For You
For over 45 years, The Dunham Group has provided in-depth market knowledge and trustworthy representation to our clients. Our objective is to help our clients realize their vision and this commitment has helped us build long-term, loyal partnerships. We like to get to know our clients the way we know Maine’s commercial market properties – which means we listen, we pay attention, and we do our research. With our insightful data analysis, local expertise, and collaborative approach we connect our clients with the right opportunities for their growth.
On working with Justin: “Once we got there and saw the space, he had done his research. He had tons of data and facts. I was blown away. Immediately we could have a pretty informed decision that this was worth pursuing or not.”
— Tom Ruff, Orange Bike Brewing Company
Featured Commercial Properties
Our Team of Brokers
Our brokers work together as a team so our clients can benefit from their combined resources and knowledge. While we have a record of success that includes brokering many of Maine’s most recognizable commercial properties, what truly drives us is the relationships that we build with clients in the process.
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The Dunham Group commercial real estate brokers have proven industry expertise with a focus on:
Office
Retail
Industrial
Multi-Family
Land
Investment
Our brokers also specialize in:
- Dental
- Manufacturing
- Medical
- Mixed-Use
- Multi-Units
- Pad Sites
- Redevelopment
- Restaurant
- Special Purpose
- Storage
Expert Guidance From Market Specialists
Find your Maine commercial property.
Latest Company News
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Justin Lamontagne Named President of Portland Rotary
Our Designated Broker/Partner, Justin Lamontagne, CCIM, SIOR has been named President of the Portland Rotary Club for the 2026–2027 Rotary year. Justin has been a member of Portland Rotary since…
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Southern Maine Industrial Market : 2026 Mid-Year Review
We are pleased to release our 2026 Southern Maine Industrial Market Mid-Year Review, offering a look at current trends shaping Maine’s industrial real estate market. The report finds that while…
Recent Transactions
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Hat Creek Cattle Company, Inc.
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Brunswick
Hat Creek Cattle Company, Inc. recently purchased a 12,200± SF industrial and retail on .43± acres at 29 Bath Road from Boatswain – 29 Bath Rd, LLC. Sam LeGeyt, SIOR…
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M. Lavoie Architectural Coatings
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Scarborough
M. Lavoie Architectural Coatings recently leased 4,000± SF of industrial space at 3 Commercial Road, Unit 2 from 3 Commercial LLC. TC Haffenreffer from The Dunham Group brokered the lease.