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Marjorie Corman Aaro
Attorney & Professor Emerita 

    Mediator, Arbitrator, Decision Tree Analyst, Educator 


Working toward wise settlement decisions.


Making just decisions in a fair & efficient process.


Mapping litigation  risks & consequences. 


Workshops and coaching, insights and skills for negotiation, mediation advocacy, client communication, and effective presentation.

About Marjorie Aaron
Marjorie Corman Aaron

Marjorie Corman Aaron, Esq.

Marjorie Corman Aaron is Professor of Practice Emerita at the University of Cincinnati College of Law, where she taught negotiation, mediation, mediation advocacy, decision analysis, client counseling, and trial practice. 


Professor Aaron has served as an arbitrator or mediator for more than thirty-six years, initially at Endispute, Inc. (merged with JAMS), and then as an independent neutral  alongside her academic career.  She has mediated or arbitrated cases  involving commercial contracts, construction and design claims, business torts and fraud, product liability, corporate governance, partnership, and fiduciary obligations, franchise claims, defamation, employment terms and non-competes, FLSA claims, sexual harassment, and gender, age, race, and religious discrimination, civil rights, consumer protection, mass claims, environmental claims, real estate, trusts, banking practices, real estate, leasing, business valuation, personal injury, insurance coverage, and professional malpractice. She has served as mediator and advisory arbitration panelist under the auspices of a special master in three national class action employment discrimination suits. 

She is a mediator and arbitrator panelist for the American Arbitration Association, CPR Institute for Conflict Resolution and Prevention, and the Cincinnati Bar ADR Service.  She has also served as a consultant in decision analysis for a company financing, packaging, and valuing data privacy breach class actions and lawyers assessing individual case value. She has provided strategic mediation advocacy consulting for attorneys in data privacy breach and other major litigation.

Professor Aaron regularly designs and teaches tailored workshops on negotiation, client communication, mediation, decision analysis, client communication, and presentation for law firms, corporations, and other organizations, and offers individual coaching in these areas.


Professor Aaron is the author of Risk and Rigor: A Lawyer’s Guide to Assessing Cases and Advising Clients (DRI Press, 2019) and Client Science: Advice for Lawyers on Counseling Clients through Bad News and Other Legal Realities (Oxford University Press, 2012), and Negotiating Outcomes: Pocket Mentor Series (Harvard Business School Press, 2007). She has authored numerous chapters, articles and case simulations in client communication, mediation, negotiation, and decision analysis and has produced many videos on effective practice (or co-produced with Professor Golann).  Her collection of instructional simulations can be found at; course materials on client interviewing and counseling are at, and offerings on decision tree analysis is at

Before joining the faculty at the University of Cincinnati College of Law, Professor Aaron was Executive Director of the Program on Negotiation at Harvard Law School, and a Senior Mediator and Vice President for Professional Development at Endispute, Inc. (merged with JAMS).  A graduate of Princeton University and Harvard Law School, Professor Aaron began her career as a civil litigator at the Goodwin Proctor firm and then as an Asst. D.A. in Plymouth County, MA.

Full CV can be found here.



Marjorie has all the qualities needed for effective arbitration:  she was available pre-hearing, extremely well-prepared, conducted the hearing and the entire arbitration fairly, and was decisive.  I recommend her without reservation. 

David Berten, Esq.

Global IP Law Group


I am happy to recommend Marjorie Aaron as an arbitrator.  She quickly understood our case, allowed us to brief critical issues, patiently and respectfully heard arguments and some heated testimony, and provided a prompt decision. 

Nelson Genshaft, Esq.

Strip, Hoppers, Leithart, McGrath & Terlecky Co., LPA 


Marjorie Aaron is a tireless advocate of resolution.  In a contentious international intellectual property matter, Marjorie’s diligence kept the settlement fires burning when the chances of resolution had seemingly been extinguished.  Equally important, her legal acumen provided a solid foundation upon which the parties could rely to consider her neutral viewpoints.  A month is a long time to mediate.  But Marjorie did it all with a smile on her face.  Thanks Marjorie!  Would use you again in a heartbeat. 

James Ludwig, Esq.

Bricker Graydon, LLP.​

I engaged Marjorie as a mediator on several occasions over 15-20 years. She was always well-prepared, willing to tackle difficult legal and people issues, and I believe she had a 100% success rate in getting those cases resolved. She listened hard to both sides, remained neutral throughout the process, and often presented creative approaches and options at difficult points in the mediation. She is on my short-list of “Class A” mediators.

David Croall, Esq. [Ret.]

Porter Wright Morris & Arthur, LLP.


Related websites & resources

Faculty site: Marjorie Corman Aaron, Professor Emerita, at the University of Cincinnati College of Law.


Client Science: Advice to Lawyers on Delivering Bad News and Other Legal Realities (Oxford University Press, 2012). This website contains full set of course materials, including simulations, videos, additional piece on Initial Client Interviews, and comprehensive instructor's guide as well as teaching notes for each simulation. 

Risk and Rigor:  A Lawyer's Guide to Decision Tree Analysis for Assessing Cases and Advising Clients (DRI Press 2019).

(Book available on and for chapter-by-chapter download at DRI Press.)  This website contains additional explanations, articles, and videos on decision tree analysis, including short video segments explaining and demonstrating the "answers" to problems in chapter 3 - "The How Tos" of the Risk and Rigor book.

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