A Pennsylvania Petition For Grant of Letters is a legal document filed with the Register of Wills in the county where a deceased person resided in order to obtain Letters of Administration or Letters Testamentary. The petitioner must be an interested party (i.e. a person entitled to take under the will or intestate succession) and must state that the decedent left no will. Depending on the circumstances, there are two types of Pennsylvania Petition For Grant of Letters. The first is a Petition for Letters of Administration, which is filed by a person who wishes to be appointed as the administrator of the decedent’s estate. The second is a Petition for Letters Testamentary, which is filed by an executor named in the decedent’s will. Both types of Petition must include information about the decedent and the petitioner, as well as a list of all heirs and the decedent’s assets.