@Joe Burns -- We bought the condo in 2007 and sold in 2015, on Dix Street near the Dot Ave end. It appreciated in value by 18% (despite a moderate downturn in the early years), and also the principal payments on the mortgage increased our equity, so we consider it a success. We bought as investors, so had to put down 25% and endure a higher interest rate than an owner occupant would.
For a lender I highly recommend Bonnie at Rockland Trust; she recently helped my son buy a multi-family in Dorchester. She works with all the first time buyer, etc, programs, she's very responsive, and she and the bank are fast. It was very difficult because of the crazy market, and other things that can happen. For buyers agent I recommend Eric Gould of Gibson Sotheby, he cheerfully stuck with it through many showings, rejected offers, failed inspections, etc.
For those affordable units, Brookline also has an Affordable Housing Opportunities mailing list.