Marsha DeCosta is a top-producing real estate agent in Wiscasset, ME with Tim Dunham Realty. Since joining Tim Dunham Realty in 2017, she has built her business on the core values of trust, loyalty, and integrity—earning her a sterling reputation throughout the region. Her commitment to exceptional service is reflected in more than 150 five-star reviews, which consistently highlight her attention to detail, strong communication skills, and genuine care for every client she serves.