If the commission chooses to sell the property through competitive bidding under RCW 53.25.140:

(1) Bids may be submitted for the property or any part of it, shall state the use which the bidder intends to make of it, and the commission may require the successful bidder to file additional information as to the intended use, and may require of him or her security as assurance that the property will be used for that purpose;

(2) All sales shall be made to the best bidder, and in determining the best bid, the commission may also consider the nature of the proposed use and the relation thereof to the improvement of the harbor and the business and facilities thereof;

(3) Within thirty days after the last day for submitting bids, the commission shall decide which if any bids it accepts. All sales shall be made upon such terms and conditions as the commission may prescribe.