- Request for Proposal: Awarded to respondent whose offer is in the best requirements of the County based on evaluation criteria contained in the solicitation. You must complete at least one (1) Optional Line Item or all Required Line Items in the Items (F) tab in APP in order for your Offer to be considered.Edit, sign, and share CITY OF PHOENIX REQUEST FOR PROPOSAL (RFP) online. No need to install software, just go to DocHub, and sign up instantly and for free. Within the proposal, the Bidder must complete the Staff Experience Reference Form (Form 6.3,. To request a proposal, please complete the form below. If your organization is bidding on both vendor hosted and City of Phoenix hosted systems submit one complete bid proposal for each system type. Below are links to solicitations available through Maricopa County. Please go to the Arizona Procurement Portal (APP) for information and to submit proposals.