Every deed purporting to convey real estate to a locality shall be in a form approved by the attorney for the locality, or if there is no such attorney, then a qualified attorney-at-law selected by the governing body. No such deed shall be valid unless accepted by the locality, which acceptance shall appear on the face thereof or on a separately recorded instrument and shall be executed by a person authorized to act on behalf of the locality. The provisions of this section shall not apply to any conveyance of real estate to any locality under the provisions of Article 6 (§ 15.2-2240 et seq.) of Chapter 22 or prior to December 1, 1997.