Little is known about how investors purchasing foreclosures during the recent U.S. housing crisis are affecting neighborhood crime. While they may decrease crime by reducing vacancies or bettering neighborhood conditions, they may increase it by escalating neighborhood turnover. Combining local police department data on calls for service with foreclosure, home sales, and sociodemographic data, this research uses longitudinal modeling to assess the relation between the purchasing of foreclosures by investors and calls for service in neighborhoods in Chandler, Arizona, a Phoenix suburb where investors are renting former foreclosures. Neighborhoods where foreclosures were more often purchased by investors had more calls for service about violent crime the following year.