Make your nest with Swallow Estates Group | Coldwell Banker. Led by REALTOR® Erica Swallow, Swallow Estates Group specializes in Western Massachusetts and Northern Connecticut Connecticut real estate, working with buyers, homeowners, and investors. We're proud to be brokered by Coldwell Banker, the nation’s largest residential real estate brokerage. Whether you're looking for your first home in Springfield, building a portfolio of investment properties in Holyoke, or selling your home in Enfield to find more space and a dream farm in South Hadley, Swallow Estates Group has you covered. Swallow Realty focuses on concierge-level customer service, quality presentation, and data-informed negotiation to find the best outcomes for buyers and sellers.