About Mary Regina
Mary Regina Beier built her legal foundation at Chatham College, where she earned a B.A. in political science in 1991. She continued her studies at the University of Pittsburgh School of Law and received her J.D. in 1994. Those formative years set the stage for a career centered on courtroom practice and professional involvement.
She is admitted to practice in Pennsylvania and before the U.S. Court of Appeals for the Third Circuit. That combination of state and federal admission shapes the work she takes on. It also defines the venues in which she represents clients and advocates for their positions.
Beier is a partner at Beier Law. She shares leadership responsibilities at the firm and handles matters brought in both trial and appellate settings. Colleagues describe her as steady under pressure and attentive to procedural detail. She has spent her career in western Pennsylvania courts and federal dockets, often managing complex schedules and the shifting demands of litigation.
Professional associations have been a constant part of her practice. She is an active member of the Allegheny County Bar Association and the Pennsylvania Bar Association. She also belongs to the Western Pennsylvania Trial Lawyers and the American Trial Lawyers Association. Those memberships keep her connected to peers and to continuing legal education opportunities.
Her courtroom work is practical and to the point. She prepares pleadings, argues motions, and represents clients at hearings and trials. When appeals arise, she briefs and argues matters in federal appellate court as needed. The record, the law, and procedural rules guide her decisions about case strategy.
Clients and fellow lawyers see her as someone who understands both the legal theory and the day-to-day mechanics of litigation. She balances advocacy and case management. She tends to pursue durable outcomes rather than quick fixes.
Outside the courtroom, she contributes time to bar activities and professional gatherings. Those commitments reflect a preference for staying current on developments in litigation practice rather than an interest in public profile work.
She practices as a partner at Beier Law and represents clients in litigation in Pennsylvania and in matters before the U.S. Court of Appeals for the Third Circuit.
