Board of Directors

Deborah S. Dunn, Esq. joined the Mercer Council Board in 2007 and has been honored to serve the community as the Chair of the Board of Directors since December 2019.

Ms. Dunn’s passion for Mercer Council’s mission is at the forefront of ensuring that the voices of underrepresented people are uplifted as well as promoting a healthier, safer, and more responsible community. Ms. Dunn understands the impact of addiction on families and the community through her representation of injured people in her work as a lawyer and through experiences within her own family. She knows the importance of education and empowerment in helping individuals confront substance-related challenges. She is committed to Mercer Council’s mission of creating pathways to reduce substance-related challenges through education, support, advocacy, and partnerships throughout our community.

Ms. Dunn is an expert Civil Trial Attorney certified by the Supreme Court of New Jersey who has extensive experience working in Accident and Personal Injury practices. She is a partner at Stark & Stark. Ms. Dunn is an alumna of Rutgers University having completed her undergraduate degree and Rutgers Law School. Ms. Dunn is a compassionate advocate dedicated to fighting for the rights of others.

Gwendolyn Gantt Jennings has been a board member of the Mercer Council since 2017; she currently serves as the vice chair. She serves on the Council as she understands the benefits of the array of services the Council provides and the positive impact of these services on individuals who are in dire need. More importantly, she has listened to numerous success stories of individuals who have benefitted from the resources or programs provided by the Mercer Council. Ms. Gantt Jennings believes nothing is more meaningful in this life than helping someone to live an aspiring life by seeking help or getting support from Mercer Council.

Mrs. Gantt Jennings is a native and lifelong resident of Trenton and Ewing, New Jersey. She graduated from Trenton State College, currently the College of New Jersey. Her professional career as an educator, teacher, and administrator, spanned forty-two years in the Trenton Public Schools District. Mrs. Gantt Jennings concluded her career as an elementary school principal at Woodrow Wilson Elementary School (recently renamed Darlene C. McKnight Elementary School). She currently serves as a mentor for the New Jersey Principals and Supervisors Association (NJPSA), mentoring new and aspiring administrators in New Jersey.

Dr. Leanna Fenneberg joined the Mercer Council Board in 2018 and has served as the Secretary since 2021. Dr. Fenneberg joined the Board generally through her desire to be service-oriented and her interest in serving the community and promoting equity and inclusion for people across all identities, backgrounds, and experiences. More specifically through her professional link where she works to support college students, who are often an at-risk population for early substance misuse.

Professionally, she serves as Vice President for Student Affairs at Rider University, overseeing out-of-class learning and student success for nearly 4,000 students. She extends her volunteerism professionally and additionally serves on the board of her professional association, NASPA – Student Affairs Administrators in Higher Education. Dr. Fenneberg holds a Ph.D. in Higher Education Administration from Saint Louis University, an M.Ed. in Student Personnel Services from the University of South Carolina, and a B.A. in Communication from Marquette University. Prior volunteer and community work include association with the Central Institute for the Deaf and Shriner’s Hospital (both in St. Louis, MO).

Mr. Lance Liverman has been serving the Mercer Council Executive Board as a member, a previous chair, and a current Treasurer since 2009. Mr. Liverman has never been one to stray away from his beliefs that all children are a blessing and they all need to have a chance to make it in this world which is aligned with the school-wide prevention education work that is part of Mercer Council’s mission.

As a lifelong resident of Mercer County, and due to his commitment to giving service to others, he continues to look for ways that he can work so that he will have an everlasting positive impact on the community. Mr. Liverman is currently the Owner/President of Liverman Associates (a real estate management company that began in 1993). He is a graduate of Trenton State College, which is now The College of New Jersey, with a degree in Organizational Communications and General Marketing.

Julie DeSimone joined the Mercer Council Board in 2020. The Mercer Council’s mission to serve youth and families aligns with her personal passion and professional path. Ms. DeSimone has worked in various youth programs, including prevention, mentor services, school-based programs, and juvenile justice diversion. Her experience in program development, management, and evaluation in these work areas allows her to support the vital prevention work of the Mercer Council. She believes Mercer Council contributes to the health and wellness of the Mercer County community and recognizes the importance of the life-altering supports provided by the organization.

Ms. DeSimone is the Program Officer for the Mayors Wellness Campaign at the New Jersey Health Care Quality Institute and a Licensed Social Worker. Julie earned a Bachelor of Arts and Sciences in Sociology from Rutgers University and a Master of Social Work, with a concentration in Nonprofit.

Antonia (Toni) Lewis has been on Mercer Council’s Executive Board since 2018. She is proud to serve on the board of the Mercer Council because its mission is personal to her since she knows young people in the community that died from substance misuse. She values the Council’s ability to provide equitable opportunities for all youth to be healthy.

Ms. Lewis is a Community Health Strategist for the National Network of Public Health Institutes, supporting New Jersey Health Initiatives grantees, a Robert Wood Johnson Foundation grantmaking program. She is a Certified Professional Coach and an Agile Leadership Coach. Ms. Lewis is a licensed Health Officer and Registered Environmental Health Specialist. She received a Bachelor of Science in Chemistry from Ramapo College and a Master of Public Health, Health Policy, and Administration from the University of North Carolina Chapel Hill.

Dr. Jarrett Fisher joined the Mercer Council Board of Trustees in 2019 and serves on the Planning, Personnel, and Public Policy & Affairs committees. As an educator, Dr. Fisher is committed to the transformative power that comes from training, community engagement, and lifelong learning – all of which are values held and services offered by the Mercer Council. Through his professional expertise, experiences, and work with youth, Dr. Fisher supports Mercer Council’s mission as the leading resource for substance prevention misuse throughout the county, while his academic training serves to advance Mercer Council’s public policy and advocacy efforts.

Dr. Fisher serves as the Associate Dean of Undergraduate Students at Princeton University. Throughout his tenure, he provides visionary leadership and strategic direction for student-facing programs and initiatives. Prior to Princeton, Dr. Fisher both lived and worked at Pepperdine University, where he received his doctorate of education in organizational leadership. Before Pepperdine, Dr. Fisher held other administrative roles in student support services, including crisis response, bystander intervention, counseling, substance education, and community standards. Dr. Fisher received his graduate and undergraduate degrees in public administration from Cal State Bakersfield.

Chief Timothy Grant has served on the Mercer Council Board since 2020. Chief Grant’s passion and involvement with Mercer Council are deep-rooted in his current work. Throughout his law enforcement profession, he sees firsthand the struggles of individuals with addictions and the heartbreak of families who walk alongside them. He is honored to work with Mercer Council’s team of compassionate caregivers and educators to help reduce substance-related challenges in our community.

Chief Grant works closely with the Mercer County Prosecutor’s Office to find solutions for the over 150,000 prescriptions for opioids dispensed and at least 100 suspected overdose deaths in Mercer County each year since 2017. He recognizes that there is no single cause of addiction, and it is only through our partnerships that meaningful change can happen. Chief Grant currently provides leadership for the Campus Police at the College of New Jersey. Chief Grant’s Police Department participates in several law enforcement initiatives developed to address the opioid and other drug crises. All Mercer County Law Enforcement Officers carry Naloxone. Each Police Department participates in “Operation Helping Hand,” an initiative that diverts individuals from the criminal justice system to substance abuse treatment. Chief Grant has an undergraduate degree in Criminal Justice from Thomas Edison College and a graduate degree in Education from Seton Hall University.

Mr. Joe Hadge joined Mercer Council’s Executive Board in 2022. Mr. Hadge uses his clinical credentials and thirty-years of working in Alcohol and Other Drug prevention field to support Mercer Council’s mission of creating pathways to reduce substance-related challenges. Mr. Hadge also understands substance use disorders through the lens of friend and family perspective and strives to share a compassionate perspective to the Council.

Mr. Hadge has worked for 30 years in the K-12 and most recently in higher education Alcohol and Other Drug prevention field. He is knowledgeable on evidenced based prevention and early intervention. Mr. Hadge earned a B.S. from Pennsylvania State University, M.A. from Springfield College. He has the following credentials: New Jersey Certified Prevention Specialist, Substance Awareness Coordinator and a New Jersey Licensed Clinical Alcohol Drug Counselor.

Chief Christopher Longo has served on the Mercer Council Board since 2023. He was born and raised in Lawrence Township. Chief Longo has over two decades of law enforcement and leadership experience with the Lawrence Township Police Department. Through his service in many different capacities at the Lawrence Township Police Department, Chief Longo has a proven track record of developing new methods and processes to ensure community policing helps build a better, stronger Lawrence is in line with the mission of Mercer Council.

Chief Longo has earned numerous Department Awards over the years, notably: 2016 Supervisor of the Year Award, five Commendable Service Awards, one Meritorious Service Award, and one Life Saving Award. He is a graduate of Lawrence Township Public Schools and he has earned an Associate Degree in Criminal Justice.

Rachel Haroz MD FAACT is Associate Professor in the Department of Emergency Medicine at Cooper Medical School of Rowan University, Division Head of Toxicology and Addiction Medicine and Medical Director for the Cooper Center for Healing. Dr. Haroz has been serving on the Mercer Council Board since 2023. She is board certified in Emergency Medicine, Medical Toxicology and Addiction Medicine. She helped build and now staffs the Center for Healing at Cooper University Hospital in Camden New Jersey, a substance use disorder clinic dedicated to treating patients with compassion and evidence based medicine and an integrated clinic for patients with HIV and substance use disorders.

In 2016 she helped create and implement BupeFirst ED, an initiative to prescribe buprenorphine from the Emergency Department and bridge patients to various community partners and in 2019 helped create and launch BupeFirst EMS, an innovative program aimed at initiating buprenorphine via paramedics in the field. She is also heavily involved in education internally as well as on a state and national level and spearheads multiple NJ state initiatives to better serve patients struggling with substance use disorders.