ECB ruled that landlord’s use of the building violated its certificate of occupancy, zoning rules, and the building code. Landlord filed an Article 78 appeal, claiming that ECB’s decision was unreasonable. The court ruled for landlord in part. Landlord’s use of the multiple dwelling building in part as a transient hotel violated the building’s C of O and the applicable residential zoning resolution. But ECB failed to show that there was a building code violation requiring exit doors leading to stairs above the lobby to swing in the direction of egress.