(1) “Mortgage” shall mean any instrument or document recorded or filed for record in the office of the recorder of deeds (or other officials in charge of recording mortgages) in any county of the second, second A, third, fourth, fifth, sixth, seventh or eighth class of the Commonwealth which creates or purports to create a specific lien on any real property within such county.

(2) “Real Property” shall mean lands, tenements, buildings and parts thereof or any interest therein.

(3) “Mortgagee” shall mean the owner or holder of the mortgage lien and shall include natural persons, co-partnerships, associations, societies, fiduciaries, private and public corporations, authorities, the United States of America and any other country and their respective governmental agencies, the Commonwealth of Pennsylvania and any other state and their respective political subdivisions and agencies or the heir at law, legal representative, assignee, successor in interest, or attorney in fact of any of the foregoing.