Tenants of rent-regulated apartments in New York City will soon have to write out larger checks to their landlords—the Rent Guidelines Board recently approved an increase of at least 4 percent in the rents of the million or so people who currently live in rent-regulated apartments across the city. Starting October 1st, one-year leases for rent-regulated apartments will see a rent increase of 4 percent, while two-year leases will see a rent increase of 7.75 percent.