Side Expands Its Unique Brokerage-as-a-Service Platform to Massachusetts in Partnership With Boston Top Agent Justin Rollo BOSTON, June 23, 2022 /PRNewswire-PRWeb/ -- Justin Rollo today announced that Signal Real Estate has partnered with Side, the only real estate technology company that exclusively partners with high-performing agents, teams, and independent brokerages to transform them into market-leading boutique brands. Signal Real Estate will leverage Side's industry-leading invisible brokerage platform to support its elite agents and provide consistently exceptional customer service to clients.