I purchase my first of many doubles in 1979 when I first move to Rochester. I was a new teacher to the area. At that time and didn't know the first thing about buying home, let alone being a landlord. The investment proved to be a good one. Over the last 30 years I have continued to buy and sell investment properties in this area. Mostly Multi-Family properties and some singles. When my clients ask about getting into the investor market. I first ask them to speak with their financial planner.etc, as there are a number of reasons why one should purchase and get into the investment game... It's not as easy as one would think.. yet its not that difficult. I work with a number of investors from all over the world. They most difficult thing when you are from overseas is finding a mortgage. There are a number of processes that one has to go thru in order to get a mortgage here in the US, different the in the UK.. but sometimes we can find private financing. Next, is finding the RIGHT property manager. This can make or break the investment. But the real answer to your question is that there is never a shortage. There are new homes on that go on the Market every day, as there are homes that get sold. I hope that helps!