CS v2009 Appendix 4 - Lease and Sales agreement

I have a project that the owner/landlord are seeking LEED-CS certification, but none of the tenants have any interest in seeking LEED-CI certification. This project is a cold-dark shell, so as part of the CS certification we are mandating the tenants meet the technical requirements for a number of credits through Lease/Sales agreements. Once the project receives certification, are the tenants held to the technical requirements listed in the lease/sales agreements for future renovations/remodels? Would it be acceptable to include wording in the Lease/sales agreements referring to the initial build out of the tenant space? Thanks in advance.