Trainer Bios


Sharon Adams has over twenty years of experience in the California Community College System - serving as a Counselor and then as a Dean of Student Services. She holds a Doctorate in Educational Leadership and a Master’s degree in Counseling.  She has travelled to several countries around the world studying and implementing forgiveness and reconciliation models in work environments. Sharon specializes in NCRC’s professional and campus conflict resolution and diversity workshops.   


Aous Ameen is from Bagdad, Iraq, where he obtained degrees in Computer Systems and Law.  He has worked in the Technology Field and in Sales. He currently works for NCRC in our trainings for the Arabic speaking refugee population.


Shelley Barajas-Leyva, MA, is a native San Diegan who has been a proud Exchange trainer since 2011. She teaches conflict resolution skills to youth and community leaders, both nationally and internationally, in English and Spanish. In addition to her work with NCRC, Shelley is Director of the USD TRiO McNair Scholars Program – a program dedicated to preparing first-generation, low-income and underrepresented students for doctoral study through involvement in research and scholarly activities. Shelley holds a Bachelor of Art in Spanish from San Diego State University, and a Master’s in Counseling from USD’s School of Leadership and Education Sciences.


Linda Braun-Leibowitz hails from Johannesburg South Africa. She immigrated to the United States in 2009. She is an experienced Clinical Psychologist and an ICF accredited Executive and Life Coach, achieving her coaching certification through New Ventures West. She has over 24 years of coaching and training experience within the corporate and private sectors where she has focused primarily on interpersonal communication skills, conflict resolution, and diversity and inclusion. She is co-founder of GloCo Leadership Consulting, a San Diego based consulting company committed to helping leaders unleash their full potential within a diverse and rapidly changing global economy. She does conflict resolution and diversity trainings for the NCRC.


Karla Broady holds a Master's Degree in International Educational Development with a concentration in Peace and Conflict studies from Colombia University. She is originally from New York but is now happy to call San Diego home. Karla has extensive experience working with families and young children.  She is passionate about teaching parents positive ways to improve these relationships. Bilingual, Karla has lived and taught abroad and strives  to bring a global perspective to her teaching. 


Steven P. Dinkin has been President of NCRC since 2003. He has also taught mediation and conflict resolution courses in the United States, Europe and Latin America. Prior to joining NCRC, Steven mediated workplace and employment cases under contract with the Equal Employment Opportunity Commission, the Federal Reserve System and the Office of Compliance, an independent office within the legislative branch of the federal government engaged in resolving workplace disputes within the House of Representatives, the Senate and other congressional offices. He received his law degree from George Washington University, where he taught a mediation clinic as an adjunct law professor.


Dr. Do has a doctorate and master's in psychology and a master’s in communication.  She has 20 years of experience teaching in college and rehabilitation schools.  She has provided psychotherapy to individuals, couples, and families of diverse cultural backgrounds for over 10 years.  She has provided diversity, leadership, and conflict management training to corporations and organizations throughout Southern California.  Dr. Do has published multiple book chapters discussing social justice issues and therapeutic treatment of people with diverse economic, social, and politic barriers.    

Dr. Do approaches her clients and students in an individualized and humanistic manner, using Eastern philosophies of mindfulness to enhance her techniques to help others to develop into the best individuals and leaders they can be.  She currently has a psychotherapy private practice and is a professor in San Diego (


Noushin Dunkelman, founder and president of MaxSynergy Consulting, graduated from UCSD with a degree in biomechanical engineering. She has over 30 years of product development, management, team building and coaching experience in small to midsize companies.  After years of working on the technical side, 5 years ago she decided to refocus her career in helping companies with their organizational challenges.
In her role at MaxSynergy Consulting, she works with companies to find the root of their internal problems and provide custom practical solutions that meet each company’s needs.   This includes helping clients improve communications, develop and implement new skills and tools to clarify expectations, and train them on actionable feedback to create accountability.  She also coaches experienced executives and new managers to further develop their leadership skills.


Rola El-Kadi graduated from Ajman University with a degree in Mass Communications and Public Relations. She has spent the vast majority of her professional career in the Middle East, where she held several positions in the field of media. As a TV host and segment producer, Rola worked for the MBC Group and Charisma, where she hosted several live-on-air TV shows with the primary objective of educating, influencing and changing people’s lives in the Middle East. Having relocated to San Diego in 2012, Rola is currently a language translator for refugees in San Diego. She joined NCRC in early 2014 as a trainer for refugees in Arabic. 


Taylor Harrell, M.A. is a scholar, consultant, and coach with over a decade of experience in leadership and organizational development training. As a senior instructor in the Leadership Studies department at USD and the UCSD Center for Mindfulness, Taylor works with global organizations and community leaders in order to confront sensitive issues and generate lasting change. Her areas of expertise include organizational behavior, team dynamics, intergroup relations, and mindfulness-based interventions. She holds a Masters degree in Marriage and Family Therapy and is currently completing her doctorate in Organizational Leadership at the University of San Diego. 


William James, MA, has been a mediator with NCRC since 1995. He is retired from the U.S. Navy, where his assignments included human resources management, substance abuse counseling and submarine duty. He has served on NCRC’s Board of Directors, as well as EEO, Workplace, Parent-teen and Juvenile Court mediation panels for NCRC. William is an evaluator for NCRC’s Credentialing Program. He has a BA in business management from Christian Heritage College, an MS in project management from Keller School of Management and a Certificate in Dispute Resolution from Pepperdine University. As a trainer, he has represented NCRC in a variety of programs.


Laura Kass-Moreno, Esq., began practicing law in 1982 and has been a credentialed mediator since 1999. Laura  became an instructor for NCRC in 2002 on a broad range of topics to a variety of institutions, including the U.S. Military, various city and county agencies, healthcare facilities and hospitality locations. Additionally, she has served as the lead trainer for job corps, teaching skills for seeking and maintaining jobs. She has also conducted numerous trainings for diverse cultural groups, including Iraqi refugees, women of East Africa and several college organizations in the area of intercultural diversity conflict management. Laura brings vast experience and expertise to her role as a lead trainer for conflict prevention and conflict management, including managing intercultural diversity conflicts.  She has been NCRC’s Credential Program mentor for the past four years.


Lisa Maxwell has been a mediator since 1985 and is Director of the Training Institute at NCRC. She has extensive experience mediating and resolving workplace disputes, interpersonal disputes and complex issues. Lisa has designed and implemented communication, conflict resolution and diversity trainings in Spanish and English locally and internationally for companies, universities and government agencies. She developed and is the lead trainer in The Exchange Training. Along with Barbara Filner and Steve Dinkin, Lisa wrote and published the book The Exchange: A Bold and Proven Approach to Resolving Workplace Conflict. She has a Master’s Degree from San Diego State University in postsecondary educational leadership.


Marc A. Meyer was a mediator and hearing officer for NCRC from 2004 to 2009 when he became a full-time staff member. Marc is currently the Associate Director of NCRC’s Training Institute, where he manages and implements NCRC’s Exchange training projects. He also provides coaching/training services for NCRC’s Credential Program, Training Institutes and Exchange trainings. He received his B.S. in international security and conflict resolution in 2007.


Veronica Mikho has been with NCRC as a mediator and the Community Justice Program Coordinator for El Cajon and City Heights since 2006 and 2014 respectively. She graduated from San Diego State University in 2005 with a B.A. in Criminal Justice. Veronica  has extensive experience in mediating all types of disputes and enjoys working with the community . Her passion is to help individuals deal with and resolve conflict in their lives by educating them in mediation and other conflict resolution skills. Veronica is fluent in English and Spanish and mediates and trains in both languages. 


Ana Sambold, Esq. ,is a bilingual mediator and attorney at law admitted in California, Federal Court Southern District and Colombia. As a mediator of the San Diego Superior Court Civil Mediation Panel and the National Conflict Resolution Center (NCRC), Ana has successfully conducted hundreds of mediations of litigated and non-litigated disputes involving highly contentious, complex matters and multicultural parties. She teaches in English and Spanish to community organizations, universities, nonprofits, refugees, and government agencies. Ana is originally a lawyer from Colombia and obtained her Master of Laws (LL.M.) from the University of San Diego School of Law. She received her training and credentials in dispute resolution from NCRC, the American Bar Association and Pepperdine University School of Law. 


Eric Sandy, MA, has a wide variety of experience in alternative dispute resolution. He has conducted hundreds of mediations and hearings on the Superior Court, Community, Parent-Teen, Elder Care, Navy, Small Claims Court and Employment Dispute panels. Since 2003, Eric has performed over 700 hours of dispute resolution training, while assisting NCRC in developing the Exchange Training. He has also worked for the City of Del Mar Community Services Department for 30 years. Currently, Eric serves on NCRC’s Board of Directors. He has an MA from San Diego State University in social science and an MS in human resources from Chapman University.

Shingler III

Arthur L. Shingler III, Esq., teaches Art & Practice of Mediation courses with NCRC’s Training Institute, as well as conflict management courses with NCRC’s Exchange program. He is an attorney and mediator, and aids litigants in resolving a full range of business and personal disputes. Art serves on the San Diego Superior Court’s Mediation Panel and on NCRC’s Commercial, Employment/Workplace and Insurance/Personal Injury/Property Damage panels. In addition, he has lectured and served on discussion panels on issues surrounding a number of subjects, including conflict management and corporate fiduciary duty law and ethics. 


Tana Slomowitz, a native of South Africa, Tana started her career as a clinical psychologist in private practice. After combining her experience as a clinical psychologist with corporate work, she founded Core Vision Consultancy in South Africa. There, she focused on working with international and local businesses as a diversity specialist and Leadership Development expert. Today, based in San Diego,Tana uses leadership development, group facilitation, executive coaching and change management skills to help organizations achieve results. She is co-founder of GloCo Leadership Consulting, a San Diego based consulting company committed to helping leaders unleash their full potential within a diverse and rapidly changing global economy. She has been working for NCRC as a trainer for two years. 


Nina Sughrue moved to San Diego in 2016 where she serves at Morgan Stanley as an investigative due diligence consultant. Prior to Morgan Stanley, Ms. Sughrue worked at the United States Institute of Peace (USIP) as a senior program officer in Washington DC from 2004-2015.   At USIP, Ms. Sughrue facilitated training programs that helped government officials, military and police personnel, representatives from international organizations, non-governmental employees, journalists, business leaders, and religious scholars improve their conflict management skills throughout the world.  Ms. Sughrue designed, implemented, taught, and mentored a network of conflict resolution trained professionals in Pakistan. Based on her experience in conflict zones, Ms. Sughrue taught a course on trauma and peacebuilding at USIP.  Prior to USIP, Ms. Sughrue was an intelligence officer for the federal government serving in South Asia.

Ms. Sughrue received a Bachelor’s degree in Political Science from Boston University and a Master’s degree in International Policy from The George Washington University’s Elliott School of International Affairs. 


Jessica Tena has over twenty years of experience in the California public school system serving as a teacher, coach, mentor, and now as a consultant. She holds a Bachelor of Arts in English with an emphasis on teaching at the secondary level from San Diego State University as well as a Master’s degree in Education with a Cross-Cultural focus.  She was honored as San Diego Unified School District’s Teacher of the Year for High School in 2013. That same year she also completed her training to become a Freedom Writer Teacher in Long Beach, California.  Jessica specializes in anti-bias education and is passionate about promoting dialogue and understanding between diverse groups, especially with students and their communities. Her work with high school students has led her to serve as a facilitator and advisory member of the education committee with The Anti-Defamation League.  She has worked with NCRC as a trainer since 2017.



Hanna Venizelos is the Program Manager for External Relations at NCRC. She graduated from San Diego State University with a B.A in International Security and Conflict Resolution. She is passionate about empowering individuals in the community, on college campuses and in the workplace to be their own solution. This passion is carried out by the work she does managing the mediation training programs at NCRC as well as being a lead trainer in a variety of workshops that NCRC offers. She specializes in training on the college campuses, in the community, with youth and in facilitating police/citizen dialogue.


Ashley Virtue is the Director of External Relations for NCRC and has been with the organization since 2005. She has been instrumental in the development and promotion of multiple mainstay programs, and has focused much of her career expanding NCRC's work nationally and internationally. As a trainer, Ashley has traveled across the United States and internationally to deliver workshops to companies, non-profits and universities. In addition to training, Ashley also represents NCRC in the news and on social media.  Since 2011 Ashley has appeared on hundreds of local, regional and national media outlets and developed a robust social media campaign across multiple platforms.

As often as you find Ashley working behind the camera on strategy, you will also find her in front of the camera most-days, representing NCRC in the news and on-line. Ashley has received a number of awards recognizing her commitment to the community, including being a finalist for San Diego Magazine’s Woman of the Year and being honored as a “KNX Hero” by Los Angeles’ KNX 1070 News Radio station. Most importantly, Ashley is committed to the idea that we can make the world a better place through civil dialogue.


Jennifer Winkler has a PhD in public health with a focus on conflict management as a strategy for health promotion. She provides training for the NCRC on communication and conflict management and restorative practices. Her doctoral work focused on school discipline and student well-being and on developing an approach called “kind discipline.” Her global public health work focused on Latin America, implementing and coordinating projects in breast and cervical cancer prevention and reproductive health. Jenny speaks Spanish and is a certified mediator.


Tsava Tuzolana Yanick attends Grossmont College where he's double majoring in Nursing and International Studies. Tsava arrived in the United States in 2010 unable to speak English.  Since 2010, he has  become an interpreter and works for several community based organizations.  He specializes in youth, community college, and community based workshops for the National Conflict Resolution Center.


Mahealani Yoshida, was born and raised in Kealakekua on the Big Island of Hawai'i. She is in her final year of undergraduate studies at San Diego State University. She is pursuing a degree in Communications with a minor in counseling and social change. Before joining NCRC in 2015, Mahealani served as a member on the Advisory Council for The Hawai'i Meth Project;  a statewide, non-profit organization committed to spreading awareness about methamphetamine abuse in the islands. She has enjoyed working closely with many different people in her community and personally experiencing the process of multicultural communication. Mahealani is passionate about embracing individuality and seizing every opportunity to engage with others in diverse settings.