There are always trends within markets. Even in this recession, we are seeing a significant upward swing in multi-family home sales, which can produce instant cash flow for owner/occupants or investors. While single-family homes and condos linger on the market, multi-family properties are practically flying off the shelves in the Boston area. Lower prices and interest rates are making cap rates much more attractive. Buyers who previously would have considered a single-family or even a condo are now temped by an immediate 8 percent ROI/year…not something easily ignored. In fact, first quarter sales volume for two-and three-family homes has increased by 46 percent in 2009 over 2008, while the median sale price fell 30 percent in the same period, according to The Warren Group, publisher of Banker & Tradesman.