Josh joined EBAC as Chief Executive Officer in 2013. After beginning his career working as a residential counselor for youth in the probation system, Josh spent 20 years supporting transition aged foster-youth in a variety of direct service, management and leadership roles. This experience was formative in shaping his belief in the critical importance of prevention, early intervention and family support programs which are central to EBAC’s mission.

Josh has a long history of advocacy including serving as the plaintiff in "Leonard v. Wagner" in which the San Francisco Superior Court held that the State of California was illegally discriminating against foster youth with disabilities. Josh continues to play an active leadership role in working to improve systems of care for vulnerable children, youth and families, having served as the President of the Behavioral Health Collaborative of Alameda County, the Alameda County Foster Youth Alliance and the Family Service Network of Alameda County as well as multiple terms on the Board of the California Alliance for Child and Family Services.

Connect with Josh on LinkedIN and Substack

Josh.Leonard@ebac.org | 510-268-3770 x1110

Roger A. Ailshie is a Certified Public Accountant who joined EBAC as CFO in 2016. Roger has over twenty-five years of total experience which started at a Regional CPA firm. From there, he worked as an Auditor for the Federal Government’s Defense Contract Audit Agency.

Roger then moved to a large non-profit corporation for 15 years holding numerous different positions until finally becoming the Corporate Controller. Roger then provided CFO/Controller services to Native American Organizations before spending the last several years in a similar non-profit to EBAC during which the organization more than doubled in size. Roger graduated cum laude with a Bachelor of Science in Accounting from Baker University.

Roger.Ailshie@ebac.org | 510-268-3770 x1103

Tammy joined the Human Resources team at EBAC in 2010, bringing with her a wealth of knowledge from both the public and private sectors. She was promoted to Chief Operating Officer in July 2014.

Committed to EBAC’s mission and vision, Tammy joins the senior team and looks forward to assisting the agency in reaching its goals. A self-described “people person”, she finds the work of human resources rewarding and challenging. A resident of the Bay Area, Tammy is committed to Building Brighter Futures and Stronger Communities in the community in which she lives and works.

Tammy@ebac.org | 510-268-3770 x1109

Sandra Portasio joined the EBAC team in October 2019 to serve as the Chief Program Officer. Throughout her career, she worked to address the impact of poverty, to foster equity and she contributed alongside others towards developing healthy communities. Sandra is trained in Pedagogy and holds a M.A. in Educational Leadership, and has served as teacher, school leader and pedagogical counselor.

Sandra also has extensive experience working in the public and non-profit sector leading multi-agencies collaboratives under the umbrella of the community school model. Sandra is an immigrant from Brazil, and she loves to travel around the world learning about other cultures.

Sandra.Portasio@ebac.org | 510-268-3770 x1119

Shawana Booker, LCSW- specializes in providing evidenced based therapeutic interventions and parenting curriculum to marginalized urban community at-risk youth and their families.

Her background experience includes providing program oversite, clinical supervision, individual and family therapy services with children who have been placed in out of home care due to abuse, in a variety of settings such as mental health clinics, community based, as well as in the Juvenile Justice Center’s and also with San Francisco’s Child Crisis Unit providing risk assessments and crisis therapy to youth displaying suicidal or homicidal behaviors

Shawana.Booker@ebac.org | 510-381-9899

Trina Lipscomb joined EBAC as Development Director in 2025, bringing more than 30 years of nonprofit leadership and fundraising expertise. Her experience includes roles with organizations such as the League of Women Voters, Habitat for Humanity, and Common Cause. Over the course of her career, Trina has led diverse development efforts from major gift cultivation to strategic growth and relationship building.

Deeply committed to equity and resilience, she has dedicated her work to helping people overcome loss, systemic barriers, and the obstacles that too often block access to opportunity. Trina believes in the power of collaboration, transformative storytelling, and bold resource development to fuel lasting impact.

Trina.Lipscomb@ebac.org | 519-695-0341 | LinkedIn