LEED CS vs. LEED CI

Hi all I'm working on a LEED CS project and a LEED CI project wich will be located in the LEED CS project. The LEED CS building is beeing designed now and the design of LEED CI is taking place simultaneously. The project owner who gave me the LEED CS asignment says that tenants floor system, false ceiling, interior walls, wall finishing etc will be included in the tenant lease and therefore it will be included in LEED CS since it's the owner who decides on materials etc. If the tenant wants another kind of flooring, another kind of false ceiling etc they will have to extend the tenant lease and it will cost them more. This is the tenant outfit according to the owner. The tenant and the owner will agree on the layout of the different levels togehter. If the tenant space material (not furniture) is what the owner have decide and is therefore included in the lease and therefore in the LEED CS what kind of materials will be left to do a calculation of recycled content, regional materials, certfy wood? Can we get these credits?