(a) Optional contract provisions.--An installment sale contract for the sale of a manufactured home may:
(1) require the buyer to pay real estate taxes that may thereafter be levied upon the manufactured home and furnish the installment seller or holder with proof of payment of real estate taxes in the manner that the contract prescribes; and
(2) upon the buyer's failure to pay the real estate taxes or furnish the required proof of payment, allow the seller or holder to accelerate payments or repossess the manufactured home, or both.
(b) Sale.--If the manufactured home is sold by a tax-levying unit of government for nonpayment of real estate taxes by the buyer, the following is not affected or divested:
(1) A lien or encumbrance contained in the title of the vehicle pursuant to 75 Pa.C.S. (relating to vehicles).
(2) An encumbrance filed of record against the vehicle under the provisions of 13 Pa.C.S. (relating to commercial code).