Search for Massachusetts property data. A property data search can provide information on property tax assessments, property appraisals, property transfers, property sales, real estate titles, property deeds, current property owners, former property owners, property sale prices, property descriptions, property maps, property lines, property zones, unclaimed parcels, unpaid property taxes, tax liens, foreclosures, low-income housing, rental assistance programs, historic property records, and genealogical research.