University Ombuds

Don Greenstein has a background in conflict management, facilitation of difficult communications, organizational development, law, and creative dispute management processes. He has more than 30 years of experience creating unique conflict resolution processes to meet the needs of those involved. Don’s processes encompass conflict coaching, facilitation, mediation and ombuds services for educational institutions, business, work place, family, end of life, community, private and court-annexed interpersonal issues. His passion is helping people and entities with ongoing, long-term relationships work peacefully and positively through differences.

Don is an affiliate at the Boston Law Collaborative, an adjunct professor with the MA General Hospital Institute for Medical Professionals, a senior affiliate of the MA Office of Public Collaboration (MOPC), and is an active reservist ombud with the Federal Emergency Management Agency (FEMA) in disaster response matters. He has a freelance mediation, facilitation, conflict coaching, training and external ombuds practice based in Massachusetts with work throughout the United States. Don is a member a variety of mediation panels including the American Health Lawyers Association, Udall Foundation Environmental Roster, Department of Interior Workplace Roster, Metrowest Mediation Services, Metropolitan Mediation Services, and the Boston Law Collaboration Employment Roster.

He has extensive experience with educational institutions, businesses, federal, state and local agencies relating to conflict resolution, conflict coaching, facilitation, dispute resolution training, team building and workplace management issues.

Esther Lin has a decade of experience handling a broad range of disputes, including workplace conflicts, employment discrimination, and complex business issues. Esther received her BA in Philosophy from Stanford University and JD from Harvard Law School, after which she served as a law clerk to a federal district judge in Boston and practiced as an intellectual property litigation attorney. During her years as a federal judicial clerk and trial lawyer, she witnessed firsthand how protracted litigation can so often produce hostility, drain financial and emotional reserves, and hinder creative problem solving.

That experience sparked a desire to help people manage and resolve conflict outside of court in more informal, flexible, and holistic ways. After training as a mediator in 2017, Esther completed a year-long mediation fellowship at The Mediation Group (TMG) in Brookline, Massachusetts, and later joined TMG's Mediation and Organizational Development panels. She mediates business and workplace disputes, teaches conflict resolution workshops, and serves as an inaugural Steering Committee member for TMG's racial justice initiative.

Esther has completed the International Ombudsman Association's Foundations course, as well as a training in Reflective Structured Dialogue, an approach to facilitating dialogues across differences in challenging, high-conflict situations. She was born in South Korea and spent her childhood years on the West Coast, in the Midwest, and in the South. She now lives in the Boston area with her husband and two daughters. She is fluent in Korean.

For over 20 years, Mike Rozinsky has led and supported multiple organizations and strategic initiatives in healthcare, information technology and services, human resources, marketing, coworking, financial services, and higher education.

He has implemented elements of the International Ombudsman Association (IOA) Standards of Practice for a peer-to-peer engagement program at a management consultancy. In senior roles at Fidelity Investments, he introduced conflict resolution practices and served as a panelist, advocate, and ally for diversity, equity, and inclusion in technology. He completed mediator training in 2014, mediates small claims court processes in Greater Boston, and is an active member in East Coast Ombuds Group and Emerging Ombuds Network. Mike has been selected to lead workshops in a variety forums, including sessions at the IOA Annual Conferences the past three years.

Mike holds a Graduate Certificate in Conflict Resolution from University of Massachusetts Boston (UMB) and was recognized in 2020 with the Donald Paulson Service Award in Conflict Resolution by the Faculty in the Department of Conflict Resolution, Human Security, and Global Governance at UMB. This award recognizes outstanding service into the field of conflict resolution, both within the program at University of Massachusetts Boston and to the wider conflict resolution field. Beyond his graduate studies, Mike worked as part of a small team at UMB on the design and implementation of conflict management services on campus. Additionally, he served as a mediator coach for the UMB court mediation internship program.

Mike has completed the IOA Foundations of Organizational Ombuds Practice course and passed Ombudsman Practitioners (CO-OP) Board of Certification Exam, which is required as the first step to becoming a Certified Organizational Ombudsman Practitioner.