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Last updated: September 2026
MP

Mannion Prior, LLP

King of Prussia, PA
Request Quote (610) 265-7800 Visit Website

Mannion Prior, LLP is a trust and estate litigation law firm founded in 2001 that focuses primarily on matters in the Orphans’ Court Division of the Court of Common Pleas. Its attorneys provide written expert reports and expert witness testimony in Orphans’ Court matters.

expert witness testimonywritten expert reportstrust and trustee litigationwill contestsestate litigationguardianship issuesfee and commission disputes
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Credentials & Experience

Years of Experience
25+

Coverage Area

Pennsylvania, with a focus on Bucks County, Philadelphia and the Main Line.

Additional Details

Area of Expertise
Other
Years of Industry Experience
25
Holds Advanced Degree (PhD, MD, JD, etc.)
No
Professional Licenses & Certifications
None Listed
Teaching or Training Experience
Yes
Hourly Rate Disclosed
No

Location

840 First Avenue Suite 100, King of Prussia, PA 19406-1459

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