Our Team


Cornerstones of Maine is the result of a labour of love for our two founders, Josh and Jake. It is independently owned by them and was established on the foundation of their desire to create a young adult transition program that is based on mental health research and experience. Not only are they the founders, they are also part of our core clinical staff.

Clinical Team

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Eric Beaudoin, Psy.D.

Clinical Director

Eric is a licensed psychologist who specializes in the treatment of the young adult population. He has been part of the Cornerstones team since its opening and has become an integral component of the program and its culture. When not working with our young adults at Cornerstones, Eric is providing them with lectures on psychology at the University of New England as an adjunct professor. Eric also has a passion for music and can often be found leading jam sessions on his guitar at our program houses. In his spare time, Eric plays guitar, writes, enjoys technology, and exploring new foodie spots.

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Gwen Tuttle, MSW, LCSW

Clinical Coordinator


Gwen is a licensed clinical social worker with over a decade of experience and training in clinical social work. She has completed internships in both Oncology and Outpatient Psychiatry where she attained specialized training in grief and loss, medical social work, and psychotherapy. While Gwen is trained in DBT, CBT, and Motivational Interviewing techniques, she believes in holistic individualized treatment of mental health and substance use issues that focus on the “whole” person. Gwen uses a client-centered and trauma-informed approach to treatment, drawing on the strengths of the individual to move collaboratively toward successful treatment outcomes. Previously, Gwen has served as Clinical Director of Case Management Services for adults with mental health issues in Portland, ME and is currently committed to volunteering in her local community. Gwen has also dabbled as a stand-up comic.

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Kerry Bennett, MA, LCPC



Kerry is a Licensed Clinical Professional Counselor with over ten years of clinical experience in the mental health and substance abuse fields. Kerry has served in multiple capacities, most recently as the lead clinician in a juvenile justice facility, where she gained invaluable insight into the needs of our most vulnerable populations. Kerry is passionate about providing individualized, creative, and intentional care. While she is competent in the provision of treatment through multiple evidence-informed modalities, including DBT, TF-CBT, and Motivational Interviewing, she believes that each individual deserves personalized care, and as such, approaches treatment in a manner that is both collaborative and holistic. 

Kerry has specialized training to work with adolescents who are at risk of involvement with the justice system and has taken every opportunity to remain current with trends in adolescent mental health and trauma-informed care. In her spare time, Kerry enjoys spending time outdoors and exploring the wonders of Maine with her close friends and dog, Ben.

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David Kinsella, MSW, LCSW



David is a licensed clinical social worker who has extensive experience in the mental health field as a therapist, supervisor, teacher, and program administrator. He has served as the Division Manager of the Behavioral Health Sciences Institute, Director of Training and Counseling and Children’s at Granite Bay Care, and is currently Adjunct Faculty in the Mental Health and Human Services Department at the University of Maine at Augusta. David has a strong passion for work with clients to aid them to overcome their challenges and build fulfilling lives through the transformative therapeutic process.

David has undergone advanced training in anxiety at Harvard University and has studied multiple therapeutic interventions. He specializes in utilizing a Strengths-Based approach coupled with foundational models such as CBT, DBT, Object Relations, Motivational Interviewing, and Solution-Focused therapy. His talents in art, composing and playing music, and writing poetry allow for him to integrate creativity into the therapeutic dynamic. David excites clients to soar above their challenges and achieve a successful rewarding life.   

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Ashley Moore, MA, LCPC-C



Ashley is a conditionally licensed clinical professional counselor with over a decade of
experience in the field of mental health. She trained at Boston University’s School of Medicine,
with a focus on counseling and behavioral medicine. Thus, she brings a holistic and integrated
mind-body approach to all of her clinical work. Additionally, Ashley utilizes her training in
acceptance and commitment therapy (ACT) and solution-focused brief therapy (SFBT)
modalities to facilitate the cultivation of both acceptance and change in the work that she does
with clients.

Clinically, Ashley has worked across multiple levels of care including residential facilities, partial
hospitalization programs, home and community levels of care, and outpatient services. She has
specialized in working with emerging adults across all levels of care. Ashley also maintains
strong roots in academia and taught full time in the psychology department at the University of
New England for three years. In her spare time, Ashley enjoys reading, gardening, and creating
with clay. You might also find her swimming in the (freezing) Maine Atlantic from time to time.


Zeus Markos, MSW, LMSW-CC



Zeus completed his undergraduate degree at the University of Wisconsin-Madison in Psychology and Spanish. Thereafter, his focus regarded the continuum of care in serving individuals who struggle with mental health and substance misuse disorders. His initial work was as a Psychiatric Care Technician; where he was employed at a forensic psychiatric institute in Madison, Wisconsin. He then moved to Maine to study classical Chinese Philosophy and Psychology for Human Development, under his mentor. During his studies, he worked full-time as an Adult Mental Health Case Manager, at The Opportunity Alliance. Zeus pursued his MSW, which afforded him internships at Preble Street Teen Center and Homeless Shelter, and Greater Portland Health’s Greater Pathways Substance Misuse Program. Zeus was also accepted into the Professional Opiate Workforce Response (POWR) Selective Social Work Program; which recruits talented Social Work students into an integrated behavioral health training program. Clinically speaking, I have an appreciation for multiple conceptual approaches to Behavioral Therapy; with special appreciation for C.G. Jung’s perspectives. 


On a personal note, Zeus is a nature-lover, concerned for our planet, enjoys exercise (running, lifting, soccer), loves art, and takes great pleasure in reading, writing, and travelling. Along with English, Zeus speaks Spanish, and intends to learn other languages as the years pass along.