I am assuming that the timber floors are original to the building.
What is the nature of the damage that you are referring to? Was the damage to the timber flooring caused by or exacerbated by the laying of the carpet by the Owner? If so then the modification to the flooring would, in my opinion, shift the responsibilty from the OC to the Owner.
Lacquering and staining of the original flooring has always been an Owner responsibility.