Mannion Prior

Join Us | Mannion Prior, LLP

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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 Please, and have obtained successful results in will contests, trust and trustee litigation, fee and commission disputes, estate litigation, and guardianship and incapacity proceedings.

We offer a generous benefits package which includes medical, dental, vision, life, STD and LTD as well as a matching 401(k) plan.


Legal Assistant

King of Prussia, PA


Performs a variety of secretarial and paralegal duties for attorneys according to established policies and procedures.  Maintains positive contact with clients, attorneys and staff and observes confidentiality of client and firm matters.

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Associate Attorney

King of Prussia, PA


The King of Prussia office of Mannion Prior, LLP is looking for an associate with a minimum of 4 to 7 years of litigation experience. Prior experience with Orphans’ Court litigation preferred but not mandatory.


Please send resume and cover letter via email to Criss Thul at cthul[at]mannionprior[dot]com.

All submissions will be treated confidentially.


Mannion Prior, LLP is an EOE/Veterans/Disabled/LGBT employer. Applicants have rights under Federal Employment Laws. Learn more »