53 Pa. Stat. § 1338
Any sale or conveyance of land or interest therein made pursuant to the provisions of this act, shall be subject to the approval of the court of common pleas of the proper county of the price agreed to be paid therefor and the terms and conditions thereof. The county commissioners and the corporate authorities of such city, for the construction of such building or buildings, are authorized and empowered to enter into a joint contract or contracts, and agreement or agreements, for the payment by each of its proportionate share of the cost of the construction maintenance, and operation of such building or buildings, with the right to provide in such agreement or agreements for the modification, from time to time, of the proportionate parts of the cost of maintenance and operation, as the county or city in fact uses a greater or lesser part of the building or buildings, to be apportioned upon the floor space occupied, or otherwise equitably determined. The county commissioners and the corporate authorities of such city are further authorized and empowered to agree between them as to the manner, and to what extent, each shall occupy the joint building or buildings so erected, and to make such other agreements, and do such other acts, as may be necessary to fully exercise the powers herein conferred.
In the event that the county commissioners and the corporate authorities of such city are unable to agree upon the proportionate parts of the cost of construction, maintenance, and operation of such joint building or buildings to be paid by each, or upon any modification thereof which may be necessary from time to time, the question or questions shall, on motion of either party, be submitted to a board of arbitrators, one to be chosen by the county commissioners, and one by the corporate authorities of such city, and, if the two thus chosen are unable to agree, a third arbitrator shall be selected by them, the decision of a majority thereof, or of the original two, to be final and conclusive upon both the county commissioners and the corporate authorities of such city, without right of appeal. The expenses of such arbitration shall be borne equally by the county and the city, and the compensation of each arbitrator shall not exceed ten dollars per day for each day actually devoted to the duties of his appointment.
53 P.S. § 1338