Yes, after the source selection but prior to contract execution, you may conduct limited negotiations with the selected design-builder to clarify any remaining issues regarding scope, schedule, financing or any other information provided by that offeror. You must comply with the provisions of § 636.507 in the exchange of this information.
Limited negotiations conducted under this section may include negotiations necessary to incorporate the ideas and concepts from unsuccessful offerors into the contract if a stipend is offered by the contracting agency and accepted by the unsuccessful offeror and if the requirements of section 636.113 are met.