NYC Landlords Sue Over Mamdani's Rent Freeze as Nearly 60,000 Stabilized Units Sit Empty

New York City landlords filed suit in Staten Island court over last month's rent freeze, arguing the Rent Guidelines Board rigged its process to hand Mayor Zohran Mamdani a political win, according to HousingWire. The lawsuit asks a judge to annul the freeze, declare the board's decision unlawful, and order a new determination that actually weighs the statutory factors landlords say were ignored.

The board voted 7-1 last month to freeze rents on both one-year and two-year leases for roughly 1 million rent-stabilized units, which make up about 41 percent of the city's housing stock, HousingWire reported. Mamdani celebrated by grabbing an ice cream bar on camera, posting the video with the caption "It might be hot outside but the rent is freezing," according to Reason.

This is the second lawsuit filed against New York's rent regulation regime since Mamdani took office. The first, filed in federal court, targets a 2019 state law that closed off most paths for landlords to remove units from stabilization or raise rents to cover repairs and capital improvements, HousingWire reported.

What Landlords Are Claiming

Landlords allege Mamdani packed the Rent Guidelines Board with loyalists after taking office and spent city money mobilizing tenant advocates to support a predetermined outcome, according to HousingWire. They're asking for expedited discovery and an evidentiary hearing to examine exactly how the board reached its decision.

No court has ruled on the allegation yet. The board is nominally independent, and its defenders would say a 7-1 vote reflects broad consensus, not a rigged process. The lawsuit requests exactly the kind of discovery that would let a court test the claim.

Scott Mollen, a New York attorney who chaired the Rent Guidelines Board under Mayor Ed Koch, told HousingWire that Koch's administration never pressured the board to reach a particular conclusion. "The results were based on objective financial analyses, as required by the law," Mollen said. He's not part of either lawsuit, but he pointed to recent sales of stabilized buildings at prices 30 to 50 percent below what sellers originally paid as "the clearest evidence that many landlords are losing money." Loan portfolios tied to these buildings have also sold below face value, wiping out landlord equity, Mollen said.

The Numbers Behind the Fight

Close to 10 percent of the city's rent-stabilized buildings now have operating costs that exceed their revenue, according to Reason, a near doubling of financial distress in five years. Nearly 60,000 rent-stabilized apartments sit empty because owners say they can't afford to renovate them and put them back on the market. Estimates of total vacant stabilized units run as high as 100,000, according to HousingWire.

Enterprise Community Partners, which works with affordable housing providers across the city, found that 57 percent of affordable housing projects in its portfolio had negative cashflow in 2024. Operating expenses for these providers have risen roughly 40 percent since 2017, while economic occupancy has fallen to about 90 percent, below historical underwriting standards, according to Enterprise. The share of operators collecting less than 80 percent of rent owed grew from 3 percent to 11 percent between 2017 and 2024.

Reason traces the financial strain to a 2019 state law that tightened rent regulation, eliminating most ways for owners to remove apartments from stabilization and largely ending their ability to raise rents to cover repairs or bring vacant units closer to market rates. Kenny Burgos, CEO of the New York Apartment Association, told Reason the freeze isn't the sole cause of the distress: "We have been on this path for the better part of a decade."

A Second Front: East Harlem

While the freeze fight plays out in court, Mamdani's administration is also trying to steer the outcome of a foreclosure auction for 887 rent-stabilized units in East Harlem, once owned by Emerald Equities' Isaac Kassirer, a former member of the city's worst-landlord list, according to City Limits. City Hall is backing a bid from developer Spatial Equity, which has pledged to preserve the units and hand some over to the El Barrio Community Land Trust.

An initial $68 million offer from Spatial Equity was rejected by creditors as too low, sources briefed on the negotiations told City Limits. The auction, already delayed once, has been pushed to at least September and has yet to be rescheduled. It's a repeat of the administration's failed attempt in January to steer the sale of a 5,000-unit portfolio owned by Pinnacle Realty out of bankruptcy, which the city was ultimately unable to stop.

Real estate interests say Mamdani's push to shift private housing toward community ownership will only worsen the distress they blame on state rent law and the mayor's own rent freeze, City Limits reported. The mayor's office declined to comment on the East Harlem bid.

The Staten Island lawsuit is now the immediate test. If a judge grants landlords' request for expedited discovery, the public could get a detailed look at how the Rent Guidelines Board actually reached its 7-1 vote, and whether the process holds up to the same scrutiny Mollen says defined the board decades ago.