20 Pa.C.S. § 5147: Proceedings against guardian.

Any proceeding may be brought against a guardian or the surety on his bond in the court having jurisdiction of the estate, and if he does not reside in the county, process may be served on him personally, or as follows:

(1) When resident of another county.--By a duly deputized sheriff of any other county of the Commonwealth in which he shall be found.

(2) When a nonresident of the Commonwealth.--By the sheriff of the county of the court having jurisdiction of the estate.