Bargain properties are harder to come by, but mortgages are still cheap and rents are rising steadily. During the housing bust, when home prices fell nearly everywhere, you could easily buy a home at a low-enough price and charge a high-enough rent to generate a few hundred dollars a month in cash flow. Plus, the supply of single-family homes is slim in many cities. You can still find foreclosures, but their numbers have fan. That means you will probably have to look longer and harder to grom the right rental property. Jeff and Donna Zibley of Apple Valley, Minnesota, a suburb of Minneapolis, looked at about 20 properties before they found the right one.