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Marsha DeCosta

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Marsha DeCosta is a top Realtor and lifelong resident of the Boothbay and Wiscasset Regions. She joined Tim Dunham Realty in 2017 and recognizes the importance of developing relationships built upon trust, loyalty and integrity.

Over the past seven years, Marsha has excelled in helping families find dream homes and selling their existing home. With over 100 amazing reviews, you can be assured her attention to detail and caring [...]

Review Marsha on Zillow

Review Marsha on Facebook

Marsha DeCosta is a top Realtor and lifelong resident of the Boothbay and Wiscasset Regions. She joined Tim Dunham Realty in 2017 and recognizes the importance of developing relationships built upon trust, loyalty and integrity.

Over the past seven years, Marsha has excelled in helping families find dream homes and selling their existing home. With over 100 amazing reviews, you can be assured her attention to detail and caring personality gets the job done. To date, Marsha has sold over $57 Million in Real Estate and helped more than 200 families from Maine and out of state. Her rave reviews continue to grow her reputation as one of the best Realtors in the Midcoast Maine region.

Marsha has been recognized for her hard work and dedication by both her clients and Tim Dunham Realty where she received the 2021 Presidents Award. Marsha currently serves as Immediate Past President of the Lincoln County Council of the Mountain to Shore Board of Realtors and holds a Director position on the Maine Association of Realtors (MAR) and Treasurer/Secretary position on the Mountains to Shore Board of Realtors (MSBOR). Marsha was named Lincoln County Council’s 2024 REALTOR® of the Year. 

In addition to her vast real estate knowledge, Marsha has a team of experts including professional photographers, stagers, mortgage brokers, bankers, inspectors, and title companies. Everyone you need for a smooth, successful real estate transaction.

When looking to buy or sell, Marsha is a dedicated real estate expert and absolute pleasure to work with.

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Hi there! How can we help you?

Contact us using the form below or give us a call.

Send Us A Message:

I agree to receive marketing and customer service calls and text messages from Tim Dunham. To opt out, you can reply 'stop' at any time or click the unsubscribe link in the emails. Consent is not a condition of purchase. Msg/data rates may apply. Msg frequency varies. Privacy Policy.

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