Triplex for sale by owner in Ashland, MA 01721. Invest in a 3 family! This is a superior investment opportunity. Great cash flow and low maintenance from these units. So rare to find, at a reasonable price. Recent updates include new vinyl siding, all new windows(2004). 3 new furnaces (2006,2009) 3 new hot water heaters (2006), new roof ( ... more.