Workplace Solutions team members offer outstanding credentials and practical experience in conflict resolution, occupational safety, public health, law enforcement, investigation, counseling, employment law, substance abuse policy, and discrimination/disability issues. The team has established a national reputation as designers and implementers of programs for preventing violence and hostile behavior. Workplace Solutions has been a resource for professional organizations, businesses, and government agencies, including the National Institute for Occupational Safety and Health and the US Department of Health and Human Services.

Team members have settled inter-personal and inter-group disputes in factories, hospitals, schools, and neighborhoods. They have resolved complex workplace conflicts, involving some of the nation’s largest employers, through mediation, arbitration and other proven techniques. These experts are recognized leaders in their fields, publishing extensively and speaking frequently at major conferences.

RICHARD V. DENENBERG, Co-Director of Workplace Solutions, is the co-author of The Violence-Prone Workplace: A New Approach to Dealing with Hostile, Threatening and Uncivil Behavior (Cornell University Press). He has written articles in the Dispute Resolution Journal and has edited with Tia Denenberg The Attorney's Guide to Drugs in the Workplace (American Bar Association, 1996). His work also has been published in the International and Comparative Law Quarterly and in the Dictionary of Modern Thought. A former editor on the staff of The New York Times, Mr. Denenberg has been awarded fellowships and grants by the Ford Foundation, the American Political Science Association, the Alicia Patterson Foundation, and the English-Speaking Union. He was educated at Cornell, Stanford, and the University of Cambridge in Britain, and he served as a Lecturer at the University of Wales.
TIA SCHNEIDER DENENBERG, Co-Director of Workplace Solutions, is a mediator and arbitrator who practices nationwide. She serves on conflict resolution panels of the American Arbitration Association, the Federal Mediation and Conciliation Service, the National Mediation Board, and the New York State Public Employment Relations Board. Ms. Denenberg has been appointed to six terms as a member of the U.S. Foreign Service Labor Relations Board and to a Presidential Emergency Board. The AAA has conferred on her its Distinguished Service Award (The Crystal Owl). Ms. Denenberg is a member of the National Academy of Arbitrators and formerly was a Director of the NAA Research and Education Foundation. She is the co-author with R.V. Denenberg of Alcohol and Other Drugs: Issues in Arbitration (BNA Books). She was elected to the board of the Labor and Employment Relations Association (2002-2005) and co chaired the organization's Dispute Resolution Section (2001-2006). In 2013, she received the LERA Outstanding Practitioner Award. A graduate of the Cornell University School of Industrial and Labor Relations, Ms. Denenberg served as the Jean McKelvey Neutral-in-Residence at the school in 2008-2009. Since 2000, she has been a Town Justice in New York’s Hudson Valley.
BONNIE PROUTY CASTREY is an arbitrator, mediator and trainer with decades of experience in collective bargaining, negotiation, conflict management, and dispute resolution. She was a Commissioner of the Federal Mediation and Conciliation Service for ten years and a member of the Federal Services Impasse Panel. Ms. Castrey earned a bachelor’s degree in nursing from California State University, Long Beach, and a J.D. degree from Western State University College of Law. She served on the Economic and General Welfare Commission of the American Nurses Association. Based in California, Ms. Castrey chairs the Huntington Beach Union High School District Board and the board of the Center for Collaborative Solutions in Sacramento. She is a past president of the Society of Professionals in Dispute Resolution and has been elected president of the Labor and Employment Relations Association for 2015-16.
JAMES J. CAVERLY was a Special Agent of the Federal Bureau of Investigation for 27 years, assigned to criminal, domestic security, and foreign counter-intelligence matters. He was a member of the SWAT and Evidence Response Teams. Mr. Caverly also served as an Equal Employment Opportunity (EEO) counselor and investigator for the FBI and as a Certified Employee Assistance Counselor. After his retirement, he joined a train-the-trainer team for security personnel and an inspection team that conducted vulnerability assessments for the U.S. Department of Energy Naval Reactors Program at military bases and nuclear sites. He has provided security briefings for several thousand employees at these facilities. He and his wife, Jeanne, conduct training programs in Critical Incident Stress Management, Hostage Negotiation, and Traumatic Grief. They have served as grief counselors for Concerns of Police Survivors, Inc., for more than 20 years.
MARCIA L. GREENBAUM is a mediator, arbitrator and former President of the Society of Professionals in Dispute Resolution. She has lectured widely and has helped create dispute resolution systems for newly emerging countries in Eastern Europe. She has also been a vice president and member of the board of governors of the National Academy of Arbitrators. Ms. Greenbaum has written about the implications of workers’ personal problems, sexual harassment issues, and the training of mediators. She is a recipient of the Groat Award for distinguished alumni of the Cornell University School of Industrial and Labor Relations and the Cardinal Cushing Award from the Labor Guild of Boston.
RICHARD B. HOFFMAN is a lawyer and management expert who has practiced internationally. He has directed the Washington office of the Justice Management Institute, a nonprofit organization engaged in training and research, and has taught comparative justice systems as a research associate professor in the School of Public Affairs at American University. Previously he was a Senior Counsel in the Administrative Office of U.S. Courts, the Clerk of the District of Columbia Court of Appeals, and a Trial Attorney for the U.S. Department of Justice. He also served as a Senior Staff Attorney at the National Center for State Courts. Mr. Hoffman received a B.S. from Cornell University (School of Industrial and Labor Relations) and a J.D. from Harvard University.
JOHN LENSSEN has extensive experience in training to prevent violence and enhance cultural competency. He is an adjunct faculty member at the University of Oregon (College of Education), where he teaches a graduate course in "Diversity in Education." An alumnus of Claremont McKenna College, Mr. Lenssen has been Director of Academic Counseling in the Office of Minority Affairs at the University of Washington (l977-81) and a Counseling Coordinator at Oregon State University (1981-1990). He has taught courses on violence prevention and ethics at several universities in the Northwest. He was also the Safe and Drug Free Schools Coordinator at the Oregon Department of Education. Mr. Lenssen is a member of the Oregon Attorney General's Task Force on Sexual Assault.
JONATHAN ROSEN is a nationally recognized authority on occupational safety and health as well as workplace violence prevention. He was formerly director of safety and health for the New York State Public Employees Federation, where he led the union’s program for 55,000 professional, scientific, and technical workers. He is now the principal consultant for AJ Rosen & Associates, LLC and a member of the adjunct faculty at the National Labor College. He has testified at numerous governmental and legislative hearings at state and national levels. Mr. Rosen has also helped conduct breakthrough federally-funded studies, including the “Co-Worker Violence Survey and Intervention Project” (University of Maryland, 2006-2011). He is a member of the American Industrial Hygiene Association, the American Conference of Governmental Industrial Hygienists, and the American Public Health Association. He has published a large number of research papers and curricula. A major focus has been on violence prevention in health care and public sector institutions. The recipient of many awards and training grants, he holds a B.S. Degree in Mathematics, Science, and Technology from Empire State College (State University of New York) and an M.S. in Industrial Health from the University of Michigan. He is a Certified Industrial Hygienist.
MARY ELLEN SHEA has acquired more than 15 years of experience as an arbitrator, mediator, ombudsman, negotiator, and facilitator. From 1988 through 1998, she was the Director of Collaborative Bargaining Training for the Massachusetts Board of Conciliation and Arbitration. In that capacity she provided training to many public sector organizations, including health care and educational facilities. In 2013 she was elected a member of the National Academy of Arbitrators. She holds a master's degree from the John F. Kennedy School of Government at Harvard University and has been the facilitator of the Joint Labor Management Committee of the University of Massachusetts Health Services Center. She was also a member of the Northeast Regional Training Cadre of the US Social Security Administration.
JUDITH S. STERN is a leading expert on public health. She is a Distinguished Professor in the Department of Internal Medicine and the Department of Nutrition at the University of California in Davis. Her honors include membership in the Institute of Medicine, a branch of the National Academy of Science. Dr. Stern has published more than 275 research papers in professional journals and more than 150 articles in popular magazines, such as Vogue. She was an Editorial Advisor to Prevention Magazine. She holds a B.A. from Cornell University and a doctor of science degree from Harvard University.




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founded with a grant from the William and Flora Hewlett Foundation.