Chestnut Oak Agents


Chris Colli, Real Estate Broker / Co-Owner

Chris specializes in all facets of real estate and is proud to be a third-generation real estate broker with strong roots in the community.

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George Colli, Co-Owner

With an extensive career in real estate that spans over 4 decades, George has expertise in residential listings and sales, home building, commercial development, and land sales.

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Sheri Griffin Mandirola, Sales Associate

Sheri Mandirola has an exceptional background in sales and marketing. Sheri is hard-working and passionate about real estate and will provide all clients with superior customer service.

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Betty Ayotte, Sales Associate

Betty has expertise in residential listings and sales as well as land sales.

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Christine Ayotte, Sales Associate

Christine has proven outstanding achievements in both sales and customer service.

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Donna Blanchette, Sales Associate

Donna brings extensive knowledge on home building to Chestnut Oak, as she and her husband are local home builders and land developers.

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Dean Cosma, Sales Associate

Dean has nearly 35 years of experience in residential listings, sales, and rentals.

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Krystal Holmes, Sales Associate

Krystal Holmes specializes in residential real estate and land sales. She also has extensive knowledge in new construction and land development.

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Steve Martin, Sales Associate

Steve specializes in residential, land, and commercial listings and sales.

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Renata Katz, Sales Associate

Renata has been a realtor in Connecticut for many years

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Lauren Mazzoli, Sales Associate

Lauren has a passion for Real Estate and is licensed in both Connecticut and Massachusetts.

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Jackie Messenger, Sales Associate

Throughout Jackie's extensive career in real estate, she has honed her expertise on residential listings, single-family and multi-family home sales, and land sales.

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Dick Miner, Sales Associate

Dick has been practicing real estate for over 30 years.

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Kellie Molander, Sales Associate

Kellie is prepared to meet all of your real estate needs with a the highest level of customer service and professioalism.  A graduate of the University of Vermont, and a background in the financial and insurance industries she is prepared to ...

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Ann M. Monighetti, Sales Associate

Annís primary areas of expertise include residential, condo, and premier properties.

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Joanne M. Sullivan, Sales Associate

Joanne is an extremely dedicated real estate salesperson with many accolades.

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Katy Colli, Bookkeeper

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Kim N. Colli, Marketing & Advertising Manager

Kim heads all in-house advertising and social media efforts at Chestnut Oak.

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Contact Information:

Chestnut Oak Associates
76 Mountain Road
Suffield, Connecticut 06078
860.668.0234

Serving Towns Including:

RealtorEqual Housing