When a married person not domiciled in this Commonwealth dies, the rights, if any, of his surviving spouse to an elective share in property in this Commonwealth are governed by the laws of the decedent's domicile at death, but the rights of the electing spouse shall be subject to the rights of fiduciaries, custodians and obligors within this Commonwealth and transferees for value of and holders of liens for value on real estate or tangible personal property located in this Commonwealth under section 2211 (relating to determination of effect of election; enforcement).