Paul McGreal

Contact Information

  • Email: Paul McGreal
  • Phone: 937-229-3795
  • Location: 203 Keller Hall


Paul E. McGreal

Dean and Professor of Law

  • Full-Time Faculty


Paul E. McGreal is dean of the University of Dayton School of Law. He became Dayton Law’s ninth dean in July 2011.

Before arriving at Dayton Law, Dean McGreal was director of faculty development and professor of law at Southern Illinois University School of Law, where he served as interim associate dean for a year. The law school’s graduating class voted him the top faculty member in 2008, 2009 and 2010.

Dean McGreal’s areas of expertise include constitutional law, religion and the law, First Amendment rights, corporate compliance, and business ethics. He has published nearly 40 articles and essays for law review publications at the University of Notre Dame, Northwestern University and the University of Pennsylvania, among others. He is also coauthor of a popular Constitutional Law study guide published by LexisNexis.

Dean McGreal is a frequent speaker and commentator on corporate compliance and ethics programs, and he writes an annual survey of legal developments on the subject for The Business Lawyer, published by the Business Law Section of the American Bar Association.

Before joining SIU’s faculty in 2006, Dean McGreal established the Corporate Compliance Center at the South Texas College of Law, where he also taught for 10 years. As the founding director, he spearheaded the center’s fundraising and marketing efforts while developing continuing legal education events and corporate externships for students in the college’s joint law-MBA program with Texas A&M University.

Dean McGreal has taught in Texas A&M University’s Executive MBA Program since 1999. His courses include modules on corporate vicarious liability, domestic and foreign anti-corruption laws (including the Foreign Corrupt Practices Act), corporate compliance and ethics programs, business ethics, and corporate social responsibility.

He also had stints as a visiting professor at George Mason University School of Law, and Southern Methodist University’s Dedman School of Law.

Prior to entering the legal education field, he worked in the Dallas office of Baker Botts LLP. After graduating from law school, he served as law clerk for Justice Warren Matthews of the Alaska Supreme Court.

Dean McGreal earned an LL.M. from Yale Law School, a law degree from the Dedman School of Law at Southern Methodist University and a bachelor’s degree in economics from Williams College.


LL.M., Yale Law School
J.D., Magna Cum Laude, Dedman School of Law, Southern Methodist University
B.A. in Economics, Cum Laude, Williams College

Areas of Law

Constitutional Law
Religion and the Law
First Amendment Rights
Corporate Compliance and Ethics Programs
Business Ethics
Law and Economics

Selected Publications

Corporate Compliance Survey, 67 Bus. Law. (2011).

The Making of the Supreme Court’s Free Exercise Clause Jurisprudence: Lessons from the Blackmun and Powell Papers in Bowen v. Roy, 34 S. Ill. U. L.J. 469 (2010).

Book Review: “The Sins of the Fathers: The Law and Theology of Illegitimacy Reconsidered,” by John Witte, Jr., 25 J. L. & Rel. 583 (2009-10).

The Case for a Constitutional Easement Approach to Permanent Monuments in Traditional Public Forums, 103 NW. U. L. Rev. Colloquy 135 (2008).

Debate: First Amendment Limits on the Regulation of Judicial Campaign Speech: Defining the Government’s Interest, 157 U. Penn. L. Rev. Pennumbra 76 (2008) (Debate with James J. Alfini).

The Unpublished Free Exercise Opinion in Jensen v. Quaring, 33 S. ILL. U. L.J. 1 (2008).

Corporate Compliance Survey, 64 Bus. Law. 253 (2008).

Social Capital in Constitutional Law: The Case of Religious Norm Enforcement Through Prayer at Public Occasions, 40 Ariz. St. L.J. 585 (2008).

In Defense of Complete Preemption, 156 U. Penn. L. Rev. Pennumbra 147 (2007).

Counteracting Ambition: Applying Corporate Compliance and Ethics to the Separation of Powers Threat of Domestic Surveillance, 60 SMU L. Rev. 1571 (2007).

Questions & Answers: Constitutional Law, 2d ed., with Linda Eads (LexisNexis Group, 2007).

Best Practices in Corporate Compliance: Survey Results and Analysis, 25 Corp. Couns. Rev. 31 (2006).

A Constitutional Defense of Legislative History, 13 WM. & Mary Bill of Right J. 1241 (2005).

Legal Risk Assessment After the Amended Sentencing Guidelines: The Challenge for Small Organizations, 23 Corp. Couns. Rev. 153 (2004).

Questions & Answers: Constitutional Law, with Linda Eads (LexisNexis Group, 2003; 2004-2006 Cumulative Supplements).

The Pine Tar Incident, in Courting the Yankees: Legal Essays About the Bronx Bombers (Carolina Academic Press, 2003).

Applying Coase to Qui Tam Actions Against the States, 77 Notre Dame L. Rev. 87 (2001) (with DeeDee Baba).

There Is No Such Thing as Textualism: A Case Study in Constitutional Method, 69 Fordham L. Rev. 2393 (2001).

Unconstitutional Politics, 76 Notre Dame L. Rev. 519 (2001).

Ambition’s Playground, 68 Fordham L. Rev. 1107 (2000).

The Flawed Economics of the Dormant Commerce Clause, 39 WM. & Mary L. Rev. 1191 (1998).

Some Rice with Your Chevron? Presumption and Deference in Regulatory Pre-emption, 45 Case W. Res. L. Rev. 823 (1995).

Media Expertise