Legal Question in Landlord & Tenant Law in Pennsylvania

Your lease is an interest in property. The terms are defined by the lease agreement. If it is written and year to year, the new owner (taxing authority) is still bound by the terms of the lease. If it is month to month or unwritten you have to move. Eventually, the taxing authority will bring an ejectment action against you if they want you out of there. They generally will want to sell the property and you may be able to enter into a lease with the new owners.