Mary Jo Corsetti

Attorney | Williams Coulson Attorneys at Law



Phone: (412) 454-0228
Fax: (412) 281-6622
Download vCard

Williams Coulson
One Gateway Center, 16th floor
Pittsburgh, Pennsylvania 15222

Willimas Coulson Pittsburgh Law Firm Attorney


Reason must always come first, even if that means adapting to the changing landscape of the project. I’m always open to exploring a different direction or strategy.

A partner with Williams Coulson since 1995, Mary Jo Corsetti has been practicing law since 1986. Her primary areas of practice include: comprehensive estates and trusts, specifically planning, administration, taxation, and Orphans’ Court litigation; civil litigation; business transactions and planning; real estate; and elder law.

Mary Jo’s broad experience across the full-spectrum of estate and business related practice areas has resulted in an exceptional multi-perspective approach that she applies to each client. Based on the central concept that money is a multifaceted personal issue, Mary Jo advises her clients beyond just the legal aspects of decisions.

Mary Jo is a frequent contributor to industry and consumer publications and has appeared on finance-related radio shows. Additionally, Mary Jo was named a 2012, 2011 and 2009 Five Star Wealth Manager in Pittsburgh Magazine and was a 2009 Athena Award Nominee. She is AV® Preeminent rated (5.0 out of 5.0) by Martindale-Hubbell since 1997 and is a 2018-2019 Top Rated Lawyer.

Active in both her personal and professional communities, Mary Jo has served as a member of Rotary Club of Pittsburgh, served on the Board of School Directors for the Allegheny Valley School District, is a member of the Allegheny County Bar Association: Probate and Trust Law Section the National Academy of Elder Law Attorneys, and is closely involved with her parish. She has also served as an Adjunct Instructor with Duquesne University’s John F. Donahue Graduate School of Business.  Mary Jo is the Solicitor for the Borough of Cheswick Zoning Hearing Board.

Mary Jo earned her J.D. from the University Of Pittsburgh School Of Law and received her B.S. in Business Administration from Duquesne University, with the designation of graduating first in her class.

Practice Areas
Sample Engagements:
  • Represented business owner in oil and gas royalty dispute.
  • Represented child in multi-state contested guardianship.
  • Represented Executor in Removal Action.
  • Represented parents joined in son’s divorce regarding (ex) daughter-in-law’s claim to benefit from value of mother-in-law’s energy business. Also prevented daughter-in-law’s attempted reach of assets held in trust for minor child.
  • Represented majority shareholder of closely held business in litigation of preliminary injunction and corporate buyout of minority interest, with succession planning. Appealed to and briefed in Superior Court.
  • Represented children of first marriage in litigation involving Prenuptial Agreement against second spouse and Attorney General. Appealed to and briefed in Superior Court.
  • Represented children of first marriage against second spouse in conjunction with transactions by second spouse pursuant to power of attorney and transfer into joint names.
  • Represented executor against child of deceased sibling in contest of language of Will; case was briefed and argued to the Superior Court, resulting in published opinion on Final Order rule.
  • Represented niece against university in will contest involving incapacitated aunt. Reported in Pittsburgh Post-Gazette, January 1, 2000 edition and in Fiduciary Reporter.