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About me

Founder and Managing Partner at Mannion Prior, LLP. 


Six attorney firm with a specialized law practice focusing on will contests, trust and estate disputes, fee and commission disputes, guardianship litigation, non-profit/chartible litigation and general fiduciary litigation at the trial and appellate court levels


Partner -  Smith, Aker, Grossman & Hollinger


Senior Associate - Ballard Spahr Andrews & Ingersoll, LLP


Associate - Dilwoth Paxson Kalish & Kauffman



Practice areas


  1. Litigation: 40%
  2. Guardianship: 20%
  3. Trusts: 20%
  4. Wills: 20%

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Contact info

Mannion Prior, LLP

840 First Avenue
Suite 100
King of Prussia, PA, 19406


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Best Lawyer - Litigation Trust and EstatesBest Lawyers in America2015
AV Preeminent RatedMartindale-Hubbell2015
Super LawyersAmerican Lawyer Media2004
Work experience
TitleCompany nameDuration
Managing PartnerMannion Prior, LLP2001 - Present
Association namePosition nameDuration
American College of Trust and Estate CounselFellowN/A
Joint State Government Commission Advisory Committee on Decedents' Estate LawMemberN/A
Pennsylvania Supreme Court Procedural Rules CommitteeDeputy CounselN/A
Pennsylvania Bar AssociationMemberN/A
Philadelphia Bar Association, Probate and Trust Law SectionMemberN/A
Montgomery County Bar AssociationMemberN/A
Publication nameTitleDate
Judges throughout Pennsylvania.The Presumption of Undue Influence and the Shifting Burden of ProofN/A
School nameMajorDegreeGraduated
Villanova University School of LawN/ALL.M - Master of Laws1993
George Washington University National Law CenterLawJD - Juris Doctor1990
Pace UniversityAccountingB.B.A1987