(a) Owner's responsibility. — The owner of any structure shall be responsible for extermination of insects, rats, vermin or other pests within the structure prior to renting, leasing or selling the structure.
(b) Tenant-occupant's responsibility. — The tenant-occupant of any structure shall be responsible for the continued rat proof condition of the structure, and if the tenant occupant fails to maintain the rat-proof condition, the cost of extermination shall be the responsibility of the tenant-occupant.
(c) Single unit occupant's responsibility. — The occupant of a structure containing a single dwelling unit shall be responsible for the extermination of any insects, rats or other pests in the structure or on the premises.
(d) Responsibility for common areas in multiple unit structures. — Every owner, agent or operator of 2 or more dwelling units or multiple occupancies, or rooming houses, shall be responsible for the extermination of any insects, rats or other pests in the public or shared areas of the structure and premises.