When the council proposes to dispose of property by private sale, it shall at a regular council meeting adopt a resolution or order authorizing an appropriate city official to dispose of the property by private sale at a negotiated price. The resolution or order shall identify the property to be sold and may, but need not, specify a minimum price. A notice summarizing the contents of the resolution or order shall be published once after its adoption, and no sale shall be consummated thereunder until 10 days after its publication. (1971, c. 698, s. 1; 1979, 2nd Sess., c. 1247, s. 24.)