Stepbystep guide on how to write contracts for leases, business partnerships, and employment contracts. We'll help you craft the best vendor contract agreement for your specific needs, and help you manage that relationship as long as you need it.Instructions and requirements to submit a bid response are found in the attachment titled "Invitation for Bid Vendor Instructions and Requirements". The Parties to this contract are the State of Illinois acting through the undersigned Agency (collectively the State) and the Vendor. Download Illinois Freelance Contract template, modify and send for signing using BoloForms Signature. Vendor shall include these Standard Illinois. Certifications in any subcontract used in the performance of the contract. This page provides quick links to vendor-oriented Disclosure Form resources available at the Program website. What should be included in a vendor contract?