On a chilly December afternoon in Atlanta, a judge told Reiton Allen that he had seven days to leave his house or the marshals would kick his belongings to the curb. In the packed courtroom, the truck driver, his beard flecked with gray, stood up, cast his eyes downward and clutched his black baseball cap.

The 44-year-old father of two had rented a single-family house from a company called HavenBrook Homes, which is controlled by one of the world’s biggest money managers, Pacific Investment Management Co. In Fulton County, Georgia, such large institutional investors are up to twice as likely to file eviction notices as smaller owners, according to a new Atlanta Federal Reserve study.