(c) Any property purchased under the provisions of this section shall be held until
such time as the department shall believe it advisable to dispose of the same
except as hereinafter provided. Thereupon, the department, at either public or
private sale, may dispose of the property upon such terms and conditions as it
may deem advisable, and the Department of Justice may approve. It shall be
lawful to sell the property for cash or for part cash and a mortgage to run from
the purchaser to the Commonwealth. When the terms and conditions of such
sale shall have been agreed upon and approved, the Department of Justice is
hereby authorized and directed to execute and deliver a deed or other
appropriate document conveying or transferring the property. Any such
conveyance or transfer shall be free and clear of all liens and encumbrances in
favor of the department except the lien of a purchase-money mortgage, if any,
contemporaneously executed and delivered to the Commonwealth.