These landlords promised to house dozens of once homeless New Yorkers. Now they’re evicting them.

Landlords who get public money to house the most vulnerable New Yorkers — including people who were recently homeless and those with mental illness and substance abuse disorder — sought eviction warrants for nearly 300 people this year, a new analysis of the data shows.

The numbers are the first ever comprehensive look at how many marshal’s notices are issued by dozens of supportive housing providers, who receive city, state and federal money to provide housing to people in need. The data was compiled by Legal Services NYC, a nonprofit that provides free legal representation to low-income New Yorkers, and shared with Gothamist. The numbers were compiled through a review of daily marshal’s notices collected by the city’s Department of Investigation.

At least 293 tenants in supportive housing, which are subsidized apartments that come with additional social services, have had eviction warrants issued by a judge in the last five months, according to the data. The warrant authorizes a marshal to remove a tenant from a unit. Of those, 51 have so far lost their homes, Legal Services NYC found. Most of the cases were over unpaid rent and involved about 70 providers. The group said the numbers are likely an undercount because many providers sue through subsidiary companies or don’t disclose it’s a supportive housing unit.

Advocates, city officials and nonprofit providers agree supportive housing is a crucial part of the safety net that keeps people from returning to shelter or the streets. But as the industry has grown by 10,000 units in the last decade tenants and their advocates say too many New Yorkers aren’t receiving the help they need to hold on to their hard-fought housing — at a time when the city is desperately trying to reduce record homelessness.

“ There's no earthly reason why the government who is funding these supportive housing providers should not put in their contract that the provider has to do more,” said Pavita Krishnaswamy, supervising attorney at the Legal Aid Society.

“You've worked so hard to get these folks off the streets into stable housing and then you don't require the providers to do everything in their power in return for the money that we're giving them to keep them stably housed.”