Seth Williams

Seth Williams is the founder and team lead of Reference Real Estate, a top 1% real estate team in Massachusetts and the nation. Ranked the #1 small team in Massachusetts in 2024 and a Top 20 small team in 2025, Reference Real Estate is consistently recognized by Real Trends as a top 1% team in the country. With $500 million in lifetime sales volume, a highest sale price of $6.3 million, and over a decade of experience, Seth is one of the most accomplished agents in Greater Boston.

Seth is the #1 listing agent in Winthrop and East Boston over the last three years, and his team specializes in residential real estate across Boston's most sought-after neighborhoods, including South Boston, the South End, the North End, Back Bay, Beacon Hill, the Seaport District, Cambridge, and Revere. From luxury waterfront condos on the Boston Harbor to historic brownstones in the South End, multi-family investment properties in East Boston, and single-family homes in Winthrop and Revere, Reference Real Estate delivers expert guidance at every price point.

As a recognized FastExpert Top Agent in Boston, Winthrop, and Revere, Seth combines deep local market knowledge with data-driven pricing strategies and modern marketing to consistently achieve top-of-market results for his clients. The team's average sale price exceeds $710,000, reflecting their focus on premium properties and higher price points across the Boston metro area.

Whether you are a first-time homebuyer exploring Cambridge or Somerville, a luxury buyer seeking waterfront living in South Boston or Winthrop, or a seasoned investor building a multi-family portfolio in East Boston or Revere, Seth and the Reference Real Estate team provide the market expertise, negotiation skill, and personalized service that every transaction demands.