Matthew D. Monsour Partner

Matthew has a diverse litigation practice that focuses on complex constitutional and statutory issues, and spans a wide-array of industries, including banking, entertainment, and transportation.

He has briefed and/or argued cases in the U.S. Court of Appeals for the Third, Sixth, and Eleventh Circuits, as well as in the Pennsylvania Supreme, Superior, and Commonwealth appellate courts. He has first-chaired trials in federal and state court and has struck down laws under the Equal Protection and Due Process Clauses of the U.S. Constitution. He regularly represents financial institutions in multifaceted fraud cases and has defended the right of businesses to market and sell their products pursuant to the governing regulatory scheme. Matthew has negotiated entertainment contracts and advised clients in the fashion industry. He serves as national coordinating counsel for a Fortune 50 transportation company, and oversees far-reaching litigation occurring all across the country. Matthew regularly lectures on constitutional law and regulations at area schools and universities. He is also deeply involved in early-stage companies and often counsels them in how to navigate their evolving legal landscapes. He has spoken at incubators and worked with emerging companies on protecting themselves and their ideas in the most cost-efficient manner.

Matthew has a strong commitment to pro bono, civic, and philanthropic endeavors. He focuses his pro bono efforts on animal welfare. He represents Gentle Ben’s Giant Breed Dog Rescue, True Companion Animal Rescue, and Gray Paws Animal Sanctuary. He has taken action both to ensure the viability of non-profit rescues and to defend rescues from unlawful regulation that would shut them down. He has served as special prosecutor on behalf of Animal Friends and has advised humane enforcement officers in all aspects related to the search, seizure, and protection of abused and neglected animals. He regularly negotiates with local governments to ensure the humane treatment of recovered animals and feral cat colonies. He is a member of the Presidential Advisory Committee of Animal Friends and chairs its Corporate and Foundations Committee. Matthew also provides free legal aid to the homeless at Operation Safety Net. He has successfully represented homeless veterans in appeals from the denial of their Social Security disability benefits. He has advised churches on their First Amendment right to care for the homeless on their property. In addition, Matthew has pushed for equal protection under the law for those addicted to drugs, and has successfully argued against laws that inhibit necessary addiction treatment. Matthew is likewise dedicated to organizations helping disadvantaged families and children. He sits on the Board of Directors of the Door Campaign, is secretary of the associate board of Pressley Ridge, and volunteers as a mentor at Big Brothers Big Sisters of Greater Pittsburgh.

Prior to joining McGuireWoods, Matthew studied at the Imperial College in London and clerked for the Hon. Kate Ford Elliot, President Judge of the Pennsylvania Superior Court.


First-chaired and won six-day federal trial that invalidated law under the Equal Protection Clause of the U.S. Constitution and resulted in a six-figure damages award and a six-figure attorneys’ fees’ recovery for client.

Argued and briefed constitutional issue of first impression in the 3rd U.S. Circuit Court of Appeals resulting in a split-decision on the issue.

Argued, briefed and won novel zoning case involving non-profit large breed dog rescue on appeal in published opinion from the Pennsylvania Commonwealth Court in matter that garnered wide-spread publicity, including articles in the USA Today, Wall Street Journal, the Tribune Review, and the front page of the Pittsburgh Post-Gazette. 

Argued, briefed, and won reversal of municipal zoning decision in the Pennsylvania Court of Common Pleas.

First-chaired and won judgment in favor of non-profit in first case proceeding under new recovery statute in Allegheny County, Pennsylvania

Argued, briefed, and won judgment invalidating criminal fine as violative of the Due Process Clause of the U.S. Constitution

Argued, briefed and won takings claim under the U.S. Constitution

Defense of international client in a contract dispute with former employee for interest in a multimillion-dollar business securing dismissal in federal court.  Unanimously affirmed by the 6th U.S. Circuit Court of Appeals in published opinion. 

Defense of pharmaceutical company in dispute over the right to sell and market drug under the Lanham Act securing dismissal in federal court. 

Representation of banking institutions in complex statutory and fraud cases in federal district court and appellate courts throughout the country. 

National coordinating counsel for Fortune 50 transportation company

Representation of financial institution related to high-profile data security breach

Representation of entertainer in contract negotiations

Representation of fashion designer in dispute over luxury bag

Representation of private equity group in their purchase of multimillion-dollar sports company

Representation of client in sale of multimillion-dollar property

  • Duquesne University School of Law, JD, Executive Articles Editor, Duquesne Law Review, 2008
  • University of Pittsburgh, BA, English Literature, magna cum laude, 2005

Board of Directors; Chair, Corporate and Foundations Committee; Member, Presidential Advisory Committee, Animal Friends

Secretary, Associate Board, Pressley Ridge

Board of Directors, the Door Campaign

  • Speaker, "Hiring, Managing and Collaborating with Outside Counsel," CCBJ Legal Operations Executive Leadership Forum, March 5, 2020
  • Panelist, "Fitting Fido into Public Places," Allegheny County Bar Association, April 3, 2018
  • Lecturer, "Libre’s Law," Duquesne University School of Law, November 4, 2017
  • Lecturer, "The Pennsylvania Cost of Care Statute," Duquesne University School of Law, October 22, 2016
  • Lecturer, "Law and Statutes Involving Animal Rescues," Duquesne University School of Law, November 14, 2015
  • Lecturer, "First Amendment in Public Schools," Seton Hill University , 2014 and 2015
  • Panelist, Companion Animals and the Law, Duquesne University School of Law, November 8, 2014
  • Pennsylvania
  • U.S. Court of Appeals for the 3rd Circuit
  • U.S. District Court for the Western District of Pennsylvania

McGuireWoods Excellence Award Winner

McGuireWoods Pro Bono Award Winner

Named to "Pennsylvania Rising Stars," Business Litigation, Super Lawyers, Thomson Reuters, 2014, 2015, 2016, 2017, 2018

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