New York City Administrative Code §27-127 Maintenance requirements
All buildings and all parts thereof shall be maintained in a safe condition. All service equipment, means of egress, devices, and safeguards that are required in a building by the provisions of this code or other applicable laws or regulations,or that were required by law when the building was erected,altered, or repaired, shall be maintained in good working order.
Note: The owner of 130 Liberty Street was LMDC. This law is nondelegable. In other words, it applies to LMDC even though LMDC hired contractors to do the actual work.