All certificates of acknowledgment to deeds and other writings taken and certified prior to July 1, 1995, by a person who was appointed as a notary public by the Governor but who failed to qualify as provided by law shall be held and are hereby declared valid and effective in all respects if otherwise valid, and all such deeds and other writings that have been recorded in any clerk’s office in the Commonwealth upon such certificates shall be held to be duly and regularly recorded if such recordation is otherwise valid according to law; however, nothing in this section shall be so construed as to affect any intervening vested rights.