Contracts will be awarded within 33 calendar days after the opening of proposals to the lowest responsible bidder. Bid Request Form (MS Word .Bid Forms and envelopes are also available in the Property Records and Taxation office. You must complete all the information contained on the Sealed Bid Form. A Request for Proposals (RFP) from the Minnesota Department of Commerce is a formal invitation to potential contractors or grantees to submit a proposal. § 471.345, subd. 18. Proposal guarantees can be in the form of a bid bond, cashier's check or certified check. Here are some of the forms you may encounter: Bid bond.