documentation issue

Hi, Our project will lend the rooftop to other company "A" which will install PV panels on the entire roof area and sell generated electricity to utility company. The contract between the project owner and company "A" has not been completed yet, so the owner can submit only draft contract for now. In addition, company "A" has not contracted with utility company yet neither. Besides that, there is no statement that the building owner does not have a claim to the Renewable Energy Credits from the project in the roof lease agreement. It is impossible to change the contract. Could you please tell us how can the project owner prove that it does not have a claim to the Renewable Energy Credits from the project? There are many difficulties in credit documentation. Any advice would be appreciated. Thank you. Noriko Yasuhara