New York City landlords sue over mayor's rent‑freeze policy

Mayor Zohran Mamdani announced a citywide freeze on rent increases for roughly one million rent‑stabilized apartments, covering both one‑ and two‑year leases beginning October 1, 2026. The Rent Guidelines Board approved the measure by a 7‑1 vote in June, after a briefing that plaintiffs say was steered by the mayor.

Five small‑owner groups filed a lawsuit in New York state court alleging the board’s process was a sham, that members were appointed because they were loyal to Mamdani, and that data on rising landlord expenses—interest, utilities, insurance—were deliberately down‑played. The complaint seeks to overturn the freeze, obtain internal board communications, and compel a new hearing. Landlords quote Sharon Redhorn: “You can’t run a building like this on good intentions alone.”

The dispute revives a legal battle first seen in 2016 when a similar freeze was challenged and dismissed. City officials defend the action by pointing to tenant income lagging behind inflation, while landlords warn the freeze could force building foreclosures. The case is expected to shape the administration’s broader housing agenda.