Mannion Prior, LLP was formed in August 2001. Before establishing the firm,
James F. Mannion and
Karl Prior , collectively, gained over 20 years experience at large, nationally-prominent
We are Pennsylvania’s premier fiduciary litigation boutique, focusing
our practice primarily in the Orphans’ Court Division of the Court
of Common Pleas. Our
practice areas include will contests, trust and trustee litigation, fee and commission
disputes, estate litigation, and guardianship and incapacity proceedings.
We also represent clients in complex business disputes and commercial
litigation matters in Pennsylvania and federal courts.
We emphasize tenacious, reasoned, and intellectual representation of every
client in every matter. Toward this end, we have built our firm with
attorneys qualified to serve your needs. We maintain the highest standards of professionalism
in our work, and our
client successes reflect that professionalism. Our firm has been involved in seminal
fiduciary litigation decisions , and our attorneys frequently
lecture and write on Orphans’ Court practice and procedure.
The various pages of this website provide you with a more complete picture
of us. You may also
contact us directly for information regarding our rates, initial consultations, and
Our attorneys are regularly recognized for their professional contributions
to the legal community. To view an individual attorney's achievements,
please visit his or her
The Best Lawyers in America©
Best Lawyers is a peer-review publication that annually lists the top peer-rated attorneys
in various practice areas. According to their
Best Lawyers conducts lengthy peer-review surveys in which thousands of established
attorneys confidentially evaluate their peers.
Best Lawyers is one of the top peer-review publications, and inclusion in
Best Lawyers is considered a significant honor in the legal community.
SuperLawyers is an annual recognition based on a
three-prong selection process, including nominations, independent research, and peer evaluation. Following
the initial selection process, only five percent of the candidates are
chosen as SuperLawyers. Additionally, two-and-a-half percent of the total
candidates are selected as Rising Stars.