After the smoke exhaust pipe on the first floor is removed, are you still responsible for opening the house and property?

This must be approved by the property to be responsible.

In principle, the flue cannot be dismantled. Under normal circumstances, only residents on the first floor may remove and replace the flue. When the owner demolishes the flue on the first floor, he needs to keep the vent, then fix the chimney of the whole building with steel structure to ensure that the chimney will not fall down, then exhaust the smoke to the outside with pipes and seal it at last, so that it will not affect other floors.