John's property listings

Listing courtesy of Keller Williams Realty Boston Northwest and Costello Realty

Listing courtesy of Costello Realty and Coldwell Banker Realty - Andovers/Readings Regional

Listing courtesy of Costello Realty and Anderson and Company Realty, LLC

Listing courtesy of Costello Realty and Redfin Corp.

Listing courtesy of Better Living Real Estate, LLC and Costello Realty