Tenants in buildings with four or fewer units are more likely to be experiencing financial hardships preventing them from paying rent.

Note: This story has been updated with new information about a federal eviction moratorium announced Tuesday evening.
The vast majority of residents kept paying rent this summer at larger apartment communities–despite the economic crisis caused by the spread of the novel coronavirus. But smaller apartment properties typically do not have professional management companies–they are not included in the data that shows renters are still paying rent. And many renters who live in these building have stopped. They often have fewer resources to support them in a crisis like the COVID-19 pandemic. Struggling renters may have received a bit of a lifeline, however, with an announcement of a four-month pause on eviction hearings for Americans below certain income thresholds.

“At smaller buildings there is less data… and more problems,” says Brendan Cheney, director of policy for the New York Housing Conference, based in New York City.

Nearly a quarter of all units of rental housing in the U.S. are in relatively small apartment properties. Many of these renters are already falling behind in rent, according to a survey by the National Association of Hispanic Real Estate Professionals (NAHREP) and the University of California Berkeley’s Terner Center for Housing Innovation. More than half (52 percent) of the 380 owners and managers who responded to the survey said they had at least one tenant who had not paid rent in the month prior the survey. The vast majority of these landlords manage fewer than 20 apartment units.

Among landlords with between one and four units, a little less than half responded that rent collections have decreased, and close to 30 percent said that rent collections had decreased by more than 25 percent, according to the survey.