Va. Code § 15.2-1648
Any town or individual may donate to the county the land necessary for its uses at any of the locations named in the petition, which shall not be less than one acre, and may offer as an inducement for such removal such sum of money as may be desired. Any offer to donate the land shall be accompanied by a deed for the land, to be regularly executed and placed in the hands of the clerk of the county. Any offer of money shall be accompanied by a certified check or other satisfactory security to be likewise placed in the hands of the clerk to be delivered by him to the treasurer of the county. If the location stated in the deed or offer of money is selected by the voters, the treasurer shall record the deed and collect and place the fund to the credit of the county to be drawn on by the board of supervisors as hereinafter directed.
Va. Code § 15.2-1648