Our Team

The Hanna Institute team is made up of social justice advocates, researchers, trainers, and community leaders. It’s a group that’s working together to change not just our corner of the world – but to make the world a better place, one community and one community member at a time.

Dr. Daniela Domínguez / Research Director

Dr. Daniela Domínguez is the Research Director at the Hanna Institute in Sonoma Valley and the owner of On the Margins, LLC. She is also an Assistant Professor in the Counseling Psychology Department at the University of San Francisco, where she coordinates the Marriage and Family Therapy Program at the Santa Rosa Campus. 

As a licensed psychologist, Dr. Domínguez works in the area of Latino/X mental health, immigration concerns, and LGBTQIA+ matters. Previously, her program of research has focused on understanding how immigrants cope with risks, threats, demands, and stress and use specific strategies to draw upon resiliencies to achieve positive health.

Erin Hawkins / Director

Erin Hawkins joined the Hanna Institute as Co-Director in October 2018. A dedicated community health and social justice advocate, Erin previously served as Director of Community Health at the Petaluma Health Care District. She is a proud member of the Board of Directors of COTS, an active Rotarian, and deeply involved in efforts to improve health equity in Sonoma County.

Erin received a Bachelor of Arts in International Development from the University of California, Berkeley, and a Master of Science in Community Development from the University of California, Davis. She resides in Santa Rosa with her husband and two sons.


Jeremiah Presinal / Certified Trainer

Jeremiah Presinal has worked for Hanna Boys Center for five years. He is a certified trainer for Restorative Practices for the Hanna Institute and is also a site administrator and program manager for the residential department at Hanna. An alum of Holy Names University with a bachelor’s degree in Sociology, Jeremiah has always prided himself in transforming lives through relationships, healing and laughter. He also holds a graduate certificate from the International Institute for Restorative Practices and is an advocate for Trauma-Informed Care. 

Jeremiah enjoys spending time with family and friends, participating in outdoor activities like camping, he is also an avid shoe collector that he has built up over many years, and he prides himself in his Dominican Heritage, indulging in traditional dancing and food when he can.


Richard De León / Community Engagement & Research Coordinator

Richard De León facilitates community empowerment initiatives in Sonoma Valley. After spending time in large corporations, Richard served in several roles for Sonoma State University. He co-facilitated the SSU Faculty Retreat and the Sustainability Summit, using World Café to gather information to restructure General Education. Inspired by the joy of being an ally to youth, in 2017 he served as an Educational Opportunity Program Advisor to incoming SSU students from diverse backgrounds to support their empowerment and academic success. As an Organization Development professional, he has served corporations, non-profits, small businesses, community groups, and individuals.

With his parents having immigrated from Guatemala, Richard identifies as a proud Latino. Richard is the first in his family to graduate from college with a B.A. in Chicano and Latino Studies in 2005.  In 2018, Richard earned his MA in Organizational Development at Sonoma State University. Every day, Richard aims to be a better son, father, husband and an authentic human.


Marisa Binder / Interim, Chief Development Officer

In this role, Marisa oversees all fund development—annual fund, major giving, planned giving, foundation grants, events, campaigns, etc.

Marisa has a diverse background in nonprofit philanthropy with experience in all aspects of fundraising, including communications, major gifts and community relations. She has more than a decade of experience working with organizations focused on social justice work including as Director of Development for the Bay Area office of Facing History and Ourselves, an educational organization, and as Development Officer for CORA (Community Overcoming Relationship Abuse), a domestic violence agency.  Other roles include Marketing and Communications for Aquarium of the Bay and Peninsula Family Service

Marisa started at Hanna in 2020 as the Director of Corporate and Foundation Relations. In her free time, Marisa serves as the Secretary for Vallejo Symphony.


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