OWM Attorneys At Law
O'Donnell, Weiss & Mattei, P.C.
Mastroianni, Thomas A.

Thomas A. Mastroianni

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Attorney Mastroianni helps clients—both young and old—with their estate planning needs. This includes preparation of basic estate planning documents such as wills, trusts, powers of attorney, and advance medical directives. His practice also includes Medicaid planning for families that face the difficulty of having to place a loved one in need of long-term care in a skilled nursing facility with the goal of achieving for the individual and their family both asset protection and their long term care. Attorney Mastroianni also handles probate and estate administration matters by assisting executors and administrators carry out their responsibilities in a timely and professional manner.


  • University of St. Thomas School of Law, Minneapolis, Minnesota
    • J.D. - 2009
    • Honors: John R. Roach Public Interest Fellowship
    • Honors: Dean’s Scholarship
    • Honors: 2008 Mission Award
  • Franciscan University, Steubenville, Ohio
    • B.A.
    • Honors: cum laude
    • Honors: Dean's List
    • Major: Theology

Professional Associations

  • Pennsylvania Bar Association, Member, 2016 to Present
  • Montgomery Bar Association, Member, 2016 to Present
  • ElderCounsel / WealthCounsel, Member, 2020 to Present
  • Eastern Montgomery Cty. Chamber of Commerce, Member, 2023 to Present
  • Philadelphia Bar Association, Member, 2010 to 2015


  • English

Current Employment Position

  • Associate

Practice Areas

  • Elder Law
  • Medicaid
  • Probate & Estate Administration
  • Wills & Estate Planning
  • Trusts
  • Guardianships

Bar Admissions

  • Pennsylvania, 2009
  • New Jersey, 2009