Except for the procurement of an option to purchase real property, the County Commissioners of Carroll County or a public agency of the county may not take final action to purchase real property unless: the action is taken at a public meeting; and if the consideration for the property is $7,000 or more, the county commissioners or public agency have given public notice of the intent to purchase the real property at least 15 calendar days before the meeting. The County Commissioners of Carroll County may: transfer without public sale an interest in surplus county real property to another government unit in the county under terms and conditions and for consideration, if any, as determined by the county commissioners; and execute and acknowledge any instruments necessary to transfer the property. The county commissioners shall obtain three independent appraisals before selling surplus school board real property under this subsection. If the County Commissioners of Carroll County determine at a public sale of surplus county property that the highest bid is not reasonable, the county commissioners may reject all bids on the property. If the county commissioners reject all bids under this subsection, the county commissioners: shall record the highest bid in the minutes; and may privately negotiate and sell the surplus property for a higher price if: the settlement of the property sale is within 1 year after the date of the initial public sale; and the county commissioners announce the privately negotiated agreement at the first meeting after reaching the agreement. The county commissioners shall adopt regulations to implement this subsection. The County Commissioners of Carroll County may dispose of surplus county personal property with a value of less than $250 by: public auction; public sale that is advertised by public notice in a media that is accessible to the general public; transfer to a unit of a county, a municipality, or the State; transfer to a private nonprofit corporation that is tax exempt under § 501(c)(3) of the Internal Revenue Code and authorized to receive appropriations from the county; deposit at the swap shop at the Northern Landfill; or disposal in a solid waste disposal facility.