Three NYC homeowners sue over messy pied-à-terre tax rollout

Three NYC homeowners filed suit in Staten Island Supreme Court to delay the city’s pied-à-terre tax rollout, arguing Mayor Mamdani’s administration bungled the process by publishing a near‑million-property list and mailing 17,000 exemption notices, forcing residents to prove residency; the suit seeks an emergency injunction to scrub the list and void notices while the law (for luxury second homes over $5 million, or condos/co-ops over $1 million that are unoccupied) is challenged, and comes as the exemption deadline was extended to Sept. 18.