Mary T. Vidas


Mary Vidas has devoted over 30 years to representing clients in domestic relations and family law. She offers in-depth experience to clients in the following areas:

  • divorce negotiation and litigation
  • custody and child support negotiation and litigation
  • alimony
  • pre-nuptial agreements
  • equitable distribution
  • adoption matters
  • contract and shareholder disputes

Additionally, Mary counsels clients in general litigation matters in both federal and state courts.

Mary has been certified as an arbitrator by the American Academy of Matrimonial Lawyers. She is a frequent lecturer for the Pennsylvania Bar Institute, the Academy of Matrimonial Law, the Family Law Section of the American Bar Association, and the Pennsylvania Institute of CPAs ("PICPA"). Recent lecture topics have included: "Validity of Pre-nuptial Agreements," "Alimony and Elder Law Issues," "Custody Problems," "Co-parenting Agreements," “The Impact of Social Media on Divorce Cases,” "Settlement Solutions: Thinking Outside the Box," and “Legal Issues Involved in the Tracing and Commingling of Marital and Non-marital Assets.”



  • AV Preeminent®, listed in Martindale-Hubbell®
  • 2004-2016, named as one of "Ten Leaders of Matrimonial Law" in Philadelphia, PA, listed in Philadelphia Magazine



  • American Academy of Matrimonial Lawyers
  • American Bar Association
  • Georgetown University Alumni Association
  • New Jersey State Bar Association
  • Pennsylvania Bar Association
  • Pennsylvania Bar Institute
  • Philadelphia Bar Association
  • Philadelphia Cricket Club
  • Philadelphia Domestic Violence Council
Professional Activities

Mary is the current chair of the American Bar Association's Section of Family Law, and previously served as the Section's vice-chair. She also serves as vice-chair of the ABA/FL Section, co-chair of the Diversity Committee; immediate past-chair of the ABA/FL Taxation and Bankruptcy Committees; past-president of the Pennsylvania chapter of the American Academy of Matrimonial Lawyers ("AAML"); member of the CLE, National Test, and Admissions Committees for the national AAML; and past-president of the Nicholas Cipriani Family Law Inn of Court.



  • New Jersey
  • Pennsylvania


  • Georgetown University, BS
  • Temple University Beasley School of Law, JD