42 Pa.C.S. § 7533: Construction of documents.

Any person interested under a deed, will, written contract, or other writings constituting a contract, or whose rights, status, or other legal relations are affected by a statute, municipal ordinance, contract, or franchise, may have determined any question of construction or validity arising under the instrument, statute, ordinance, contract, or franchise, and obtain a declaration of rights, status, or other legal relations thereunder.