SEEDS employs a highly-skilled team of full-time and part-time conflict transformation professionals.


Read more about our staff below and on our practitioner page!

Core Staff

AddieRose Mayer

Executive Director

AddieRose Mayer is the Executive Director of SEEDS. She is a dynamic, process-driven, strategic leader with a commitment to increasing social impact in the public, private and non-profit sectors. AddieRose had more than 15 years experience leading and facilitating teams to have brave communication across differences. As a practiced strategic thinker, AddieRose supports individuals, communities and institutions as they lean into discomfort to solve challenging social issues. As a leader and practitioner, AddieRose draws on principles of adult learning, leadership development, human-centered design, and social change. She holds a Bachelor's degree in Political Science and a Master’s in Public Health.

An East Coaster in humor and a West Coaster in style, AddieRose lived in New England until moving to the Bay Area in 2010. AddieRose has a passion for cooking and sharing food, spending time in the woods, and connecting with others. AddieRose is proud to be a community leader of the purpose driven community: Thrive East Bay.

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Becky Polley

Programs Coordinator

Becky Polley is the Programs Coordinator at SEEDS. With a background in social work, she joined SEEDS after working in operations, program coordination, and direct service with homeless/houseless youth and youth in Foster Care. In her previous work, Becky witnessed the power of productive communication, relationship building, and self-advocacy. She is excited to be working at an organization that helps people learn how to engage in and facilitate effective dialogue and conflict transformation. 


Becky grew up in Portland, OR, where she was living before recently moving to the Bay Area. When not working, she enjoys being outside, crafts, and sharing snack plates with friends. 

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karina norton

Senior Practitioner - Conflict Transformation for Movement Spaces

karina (they/them) is a mediator, healer, transformative justice (TJ) practitioner, and digital organizer that takes a collaborative, collectivist approach to movement, accountability, and education work. After graduating from Vassar College with concentrations in Africana Studies, Political Science, and Francophone Studies, they joined the Spring Up collective doing TJ work, which introduced them to Restorative Justice and the SEEDS family. karina is a facilitator and coach with Spring Up, a coach and organizer with the Newburgh LGBTQ Center, and an advocate for Disabled, mad, and mentally ill students with Project LETS in addition to their capacity as Interim School Services Coordinator. They love tending to their plants, creating spaces that center joy and laughter, and believe that building intentional, accountable relationships and communities rooted in care and consent can transform our worlds.

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Lauren Lofton

Special Projects Manager

This photo expresses the gender expansiveness of this staff member. Thank you to non-binary and transgender professionals who paved the way with gender diverse headshots.

Lauren Lofton (they/them) is the Special Projects Manager for SEEDS. They support business development, program projects in partnership with the leadership team, facilitate the organization's communications teams including the Board of Directors, staff members and volunteers and support funding development projects in support of a sustainable business model. Lauren's speciality areas include effective program implementation and impact, development of SEEDS' theory of action, and organization-wide program evaluation. Lauren joined the SEEDS community in 2017 as a mediator, facilitator, and trainer (conflict resolution, communication, diversity, equity, inclusion). 

Lauren is a bi-racial Black attorney, a proud member of the LGBT+ community, and a born and raised San Franciscan. They enjoy spending time with loved ones, swimming, traveling and writing. They are a firm believer "the impossible" is possible. They believe our collective liberation is inevitable through the uprooting of systems of oppression and the planting of SEEDS of conflict transformation in support of a new and different world. They also believe in resting for resilience. 

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Mateo Sánchez 

Community Programs

Case Coordinator

Mateo Sánchez is the Community Programs Case Coordinator at SEEDS. In their role, they oversee the case management of mediation cases with a team of volunteers.


With a background in immigrant rights advocacy and advising organizations, Mateo provides direct services to community through a strong social justice lens, informed by their experience as a person with mixed-status background and member of the LGBTQ+ community. As an interpreter and bilingual storyteller, Mateo is also acutely attuned to the nuance and power of language as a tool for communication and the role that this plays in community building and transformative change. Mateo holds dual bachelor degrees in Psychology and Legal Analysis and looks forward to continuing to advocate for communities within oppressive institutions.


In their free time, Mateo can be found writing and snuggling with their cat Merlot. 

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Sarah Dobson

Interim Organizational Effectiveness Services Manager

Trainer/ Facilitator

Sarah Dobson grew up in the suburbs of Baltimore, Maryland and has been a violence prevention educator and conflict transformation practitioner in the US, Nicaragua, and Costa Rica. She earned her M.A. in Gender and Peacebuilding from the UN mandated University for Peace and has a particular passion for preventing gender based violence and restorative responses to identity-based harm. She loves petting dogs, playing ultimate frisbee, and walking slowly in thick forests.

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Dr. Sherry
Congrave Wilson


Sherry Congrave Wilson is the Director of School Services at SEEDS. Her main role is to support schools and youth serving organizations to be restorative  in service of students, their families and their communities.

She started her career as a high school Social Studies teacher in San Diego and San Lorenzo, California. She then shifted her focus to nonprofit management while earning a Masters in Educational Equity and Social Justice at San Francisco State University. She eventually continued her graduate studies and earned a doctorate in Educational Equity and an administrative credential at Mills College. She has conducted domestic and global educational research in the U.S., China, Japan and Cameroon highlighting  issues around equity, racial identity development and arts based education.

In her free time, Sherry enjoys collecting books, cooking, camping, art, traveling, roller skating  and going on urban hikes with her miniature pinscher, Zala. 

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Talia Sharpp

Community Programs


Talia Monet Sharpp (pronouns: they/them and she/her) is a community educator. They graduated from Hampton University in 2018 with a degree in Political Science and completed post-baccalaureate studies in African and African American Studies and Politics at Princeton University. Before joining SEEDS, she served as a Program Coordinator for the LGBTQIA Resource Center at the University of California Davis. Talia’s vocation is creating critical loving, communal spaces of support, agitation, and mitigation of harm for people within their community through collective based leadership. 


As a black queer and nonbinary person, Talia is passionate about supporting communities through the development of programming sensitive to the needs of our community with an aim to dismantle systems of oppression. Talia brings a wealth of knowledge and experience in crisis management, facilitation and training to their work as Community Programs Manager at SEEDS. In their free time, Talia enjoys cooking soul food, swimming, and dancing to afrobeats.