How do I submit a bid or proposal? All formal bids and proposals shall be submitted as specified in the solicitation document.All bids should be identified as "Sealed Proposal - Town Senior Center Project". Form-Invitation-to-Bid-Bid-Proposal-Form.doc. Official Seal of the State of Arizona. Contact. Arizona Department of Housing. The Bid shall contain an acknowledgement of receipt of all Addenda (the numbers of which must be filled in the Bid Form). 10.8. Instructions. Section I. Solicitation Response Checklist. Introduction. 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.