6. Milwaukee
2018 condo home value: $100,900
Rent growth: –8.4%
Rental yield: 16.6%
More than 58 percent of people living in Milwaukee rent instead of own, making it one of the best places to invest in real estate. Look beyond the slight decrease in average rents: Condo property values increased by 13 percent in the last year, leaving landlords with a sizzling 16.6 percent yield.