Contract Exhibits

Our contracts will typically be composed of a Proposal Form, (to be signed by four or five folks), and a collection of Exhibits of different types (scope documents, financial documents).  When signing a document, the Exhibits become inextricably bound into the final fully executed document.  How can we arrange things such that that doesn't happen?  Some parties need all the Exhibits, others only receive selected documents.  When we begin the process, we upload the Proposal Form for signature and 'attach' the Exhibits.

Thanks.