26 Pa.C.S. § 716

Where a condemnor attempts to avoid the payment of monetary just compensation to which the condemnee otherwise would be entitled by use of a substitute for monetary compensation and the condemnee incurs expenses, including appraisal, attorney and engineering fees, in securing an adjudication that the substitute is not adequate, the condemnee shall be reimbursed by the condemnor for all these expenses incurred.