CDR Banner Image

Center for Dispute Resolution Directors and Affiliates

  • Terry Wheeler 

    Terry Wheeler is a partner of the law firm of Artz, Dewhirst & Wheeler, LLP and has been licensed to practice law since November 4, 1985.  Terry began his career as a staff attorney for the Franklin County Municipal Court, joined the Ohio Commission on Dispute Resolution & Conflict Management as associate director, then became a director of the Center for Dispute Resolution at Capital University Law School.  Terry joined Artz, Dewhirst & Wheeler, LLP in June 2001 and became a partner on January 1, 2009.  Since joining ADW, Terry has practiced law primarily in the areas of employment, criminal, civil rights and litigation.

    Terry continues his involvement with dispute resolution at Capital University Law School by serving as Co-Director of the Center for Dispute Resolution, Academic Director for the Mediation & Dispute Resolution Program, and Adjunct Professor of Law teaching negotiation, mediation and mediation clinic.  Terry is a former president of the board for the Association for Conflict Resolution, which is located in Washington, DC.  He has been mediating since 1983 and has been actively involved in the development of the Uniform Mediation Act and the Model Standards of Conduct for Mediators, as well as many other state and national initiatives.  In addition, to teaching and training, Terry serves as a private mediator and arbitrator.


    Scot Dewhirst 

    Scot Dewhirst was a founding partner of the law firm of Artz and Dewhirst (now Artz, Dewhirst & Wheeler, LLP) in 1988. He is currently an Adjunct Professor of Law and Co-Director of the Center for Dispute Resolution at Capital University Law School.  He has received the highest AV ratings for ethical standards and legal ability awarded by Martindale-Hubbell Peer Review Ratings. Previously, he was the Executive Assistant to the Columbus City Attorney acting as the Claims Manager for the city of Columbus and attorney for the Columbus Development Department.  When he first began his legal career, he was Assistant City Attorney in the Prosecutor’s Office and served as Director of the Columbus Night Prosecutor Mediation Program for seven years.

    Mr. Dewhirst has been actively involved in the field of dispute resolution since 1977 as a private mediator, arbitrator, public speaker, trainer, and program director.  He has developed mediation projects in both Jamaica and Nicaragua, has been approved and trained as a mediator and arbitrator in the Dalkon Shield Arbitration Program, and has also been an independent contract mediator for United States Arbitration and Mediation. Mr. Dewhirst has also coordinated and participated in the development of new negotiation and mediation training programs and 16 negotiation and mediation videos.  He has conducted numerous training programs in both insurance negotiation and mediation.  He was a co-founder and board member of Community Mediation Services of Central Ohio. 


    Tom Addesa 

    Thomas J. Addesa began his legal career in 1985 as an Assistant Prosecutor for the City of Columbus, Ohio.  In that that role he conducted nearly 100 jury trials.   In 1990 he was appointed Assistant City Attorney in the Civil Litigation Section for the Columbus City Attorney’s Office.

    Mr. Addesa joined the present law firm of Artz, Dewhirst & Wheeler, LLP in 1998 with a primary focus in litigating Family Law including co-parenting.  In 2005, Tom obtained a specialty certification in family law and has maintained his credentials as an Ohio State Bar Association Certified Family Relations Law Specialist.

    Due to his extensive criminal and traffic experience, he continues to provide representation for clients charged with criminal and traffic offenses. He also provides mediation services to individuals with a variety of legal issues, including divorce and family law issues, who seek to resolve disputes outside of the court system.  Tom’s years of litigation experience allow him to zealously advocate and protect his clients’ rights, and his lengthy experience as a mediator allows him to assist parties in resolving their disputes without resorting to the litigation process.

    Tom is an Adjunct Professor at Capital University Law School and is approved to teach Divorce Mediation and Mediation Clinic. Tom was a trainer for the Ohio Governor’s Commission on Dispute Resolution 1988, and he is on the Franklin County Domestic and Juvenile Court approved list of mediators.


    Sandra L. DeBlanc  

    Sandra (Sandy) DeBlanc has over 30 years of experience in managing and handling disputes between consumers and businesses.  After graduating from Capital University Law School’s Mediation and Dispute Resolution Certificate Program she became an affiliate of the Center for Dispute Resolution. 

    As one of the founding partners in Capital Mediation Associates she has been actively involved in Franklin County Courts’ Dispute Resolution Programs, including Foreclosure Mediation, Small Claims and Eviction Courts, as well as, Magistrate and Judge Referred cases.

    The Better Business Bureau of Central Ohio contracted with her to assist in the development of their mediation program, which included training of their staff and providing mediation services.  In addition to her Mediation and Dispute Resolution Certificate, she holds a BS in psychology and a Masters of Business Administration from the University of Louisiana. 


    Susan K. Nagel 

    Susan Nagel is the CEO of CPR Inc. - a full service conflict resolution firm whose clients include the U.S Government, state and local governments, and numerous business entities, both foreign and domestic.  She travels extensively in her position at CPR Inc. and has practiced her skills in in Uzbekistan, Taiwan, China, Japan, Thailand, England, Poland, Italy, Croatia, Belize and many other countries.  She provides mediation, pre-trial evaluation, arbitration, facilitation, dispute resolution systems design, evaluation and measurement, executive coaching, negotiating techniques, training and many other dispute resolution tools to meet the needs of diverse clients.

    Ms. Nagel is also an Adjunct Professor at Capital University Law School teaching in the Dispute Resolution area. She has served as a trainer for the State of Ohio, employee mediation programs and is a guest trainer for the Ohio State University’s Law School mediation course.  Ms. Nagel has developed curriculum for and conducted numerous specialized mediation training seminars developed for specific groups such as the Ohio Workplace Mediation Program, OCSEA-AFSME Dispute Resolution programs, Workforce Development and many others.

    She has a Juris Doctorate from the University of North Carolina at Chapel Hill and an LL.M. in Business and Tax from Capital University Law and Graduate Center in Columbus. 

    Susan is a licensed attorney, mediator, Certified Public Manager (CPM) and holds the designation of Senior Professional in Human Resources (SPHR) from the Society for Human Resource Managers (SHRM).  She is a Certified Manager of Quality (CQM) for Organizational Excellence from the American Society for Quality (ASQ) and also holds the designation of master facilitator. She provides pro-bono legal service to many programs, including foreclosure mediation and is active in dachshund rescue.