Landlords should require that tenants provide and maintain general liability insurance for the term of their lease. This is extremely important so that landlords are protected from potential tenant mistakes.

If a building does not have a valid certificate of occupancy, then it cannot be legally occupied. In fact, without a valid certificate of occupancy an owner who rents/leases the building, they would have no legal ability to collect rent; and/or if the building is owner occupied, then they could be issued a vacate order at any time.