Mannion Prior, LLP is Pennsylvania’s premier trust and estate litigation boutique.

We pursue, defend, provide advice on issues involving the standards of care applicable to fiduciaries such as trustees, executors, guardians, charitable organizations, banks, trust companies, partners, attorneys, officers and directors of corporations.

We focus our practice primarily in the Orphans’ Court Division of the Court of Common Pleas, and have obtained successful results in will contests, trust and trustee litigation, fee and commission disputes, estate litigation, and guardianship and incapacity proceedings.

Our attorneys are well qualified to serve your needs, and maintain the highest standards of professionalism in their work.

Mannion Prior is headquartered in King of Prussia, PA and represents clients in Philadelphia, Bucks County and the Main Line. Contact us when you have a trust and estate dispute. We are here for litigation, arbitration and mediation.

Areas of Practice

We pride ourselves on our reputation as one of Pennsylvania’s leading firms in fiduciary litigation and counseling. We pursue, defend, and provide advice on issues involving the standards of care applicable to fiduciaries such as trustees, executors, guardians, charitable organizations, banks, trust companies, partners, attorneys, and officers and directors of corporations.