20 Pa. C.S. § 6202
A disclaimer on behalf of a decedent, a minor or an incapacitated person may be made by his personal representative, the guardian of his estate or in the case of an incapacitated person who executed a power of attorney which confers the authority to disclaim upon his agent and which qualifies as a durable power of attorney under section 5604 (relating to durable powers of attorney) by such agent, if, in each case, the court having jurisdiction of the estate authorizes the disclaimer after finding that it is advisable and will not materially prejudice the rights of creditors, heirs or beneficiaries of the decedent, the minor or his creditors, or the incapacitated person or his creditors, as the case may be. A personal representative may make a disclaimer on behalf of his decedent without court authorization if the will of the decedent so authorizes him.
20 Pa.C.S. § 6202