A bid walkthrough checklist helps the bid walkthrough process go more smoothly and helps increase your chances of winning the contract. Detailed Bid proposal packets are on file at the Division of Procurement, City Hall, 1st floor, between the hours of am pm.Bidder shall submit with the Bid a certificate (Consent of Surety) with power of attorney for full amount of Bid price from a surety company authorized to do. Place "Bid for Property XYZ" on the top of the page. Cold calling is the number 1 way of getting storefront and commercial. The key is to get them on a schedule. Learn how to present the best and most responsible proposal to win a commercial cleaning contract. FREE Customer Profile Intake Worksheets!