Recently financial information site GOBankingRates.com surveyed 61 of America’s 100 most populous cities to determine which cities they believe are the best and worst for owning rental property. Using data from Zillow and the U.S. government, they looked at four major factors in their evaluation; Employment Growth, Population Growth, Increase in home values, and Years to pay off property. As with all data like this, take it with the appropriate amount of salt.