Before letters shall be granted to a personal representative by the register, the personal representative shall swear that he will well and truly administer the estate according to law. The oath of a corporate personal representative may be taken by any of its officers.
Oath of personal representative
20 Pa.C.S. § 3161, under Dispositions Independent of Letters; Family Exemption; Probate of Wills and Grant of Letters.
20 Pa.C.S. § 3161