In In re Upset Price Tax Sale, 147 Pa. Commw. 52, 606 A.2d 1255 (Pa. Cmwlth. 1992), the Court explained the multiple objectives of posting a property: Not only does public posting assist in informing a taxpayer that his or her property is to be exposed at tax sale, especially when, as here, personal service cannot be accomplished, it serves the additional purpose of notifying others whose interest may be affected by the sale such as mortgage and other lien holders. Posting also serves to notify the public at large that the property is going to be offered at tax sale. Id. at 1258.