Alanna L. Sullivan
Founder & CEO | Sullivan House
Alanna L. Sullivan brings a rare blend of business acumen, clinical expertise, and personal purpose to her role as Founder and CEO of Sullivan House. Originally a corporate business manager, Alanna transitioned into the field of psychotherapy after confronting the stark limitations of mental health housing while supporting her own brother, who lives with severe mental illness. That experience exposed the painful gaps in care—not just for individuals in need, but for the families left to carry the weight in silence. Determined to be part of the solution, Alanna created a mission-driven company that uplifts both clients and their loved ones, offering relief, dignity, and a path forward.
Her work is deeply rooted in advocacy for those who are too often overlooked: individuals stuck on endless waitlists, adult children seeking independence without support, and those who fall into the “in-between”—not eligible for government programs, yet unable to thrive on their own. Sullivan House exists to meet those needs with compassion, structure, and high standards of care, driven by Alanna’s firsthand understanding of how isolating and exhausting the journey can be—for everyone involved.
Alanna holds a Master’s Degree in Clinical Psychology and is currently pursuing a Doctorate in Social Work, reflecting her ongoing commitment to both personal growth and systemic change. Outside of her professional life, she’s a proud mother of two, an avid writer and horseback rider, and someone who thrives on new challenges—whether in fitness, creative pursuits, or leadership. Her integrative, heart-forward approach to healing defines the culture of Sullivan House and continues to shape a more inclusive future for mental health care.
Jen Devoe Vandusen
Director of Client Engagement | Sullivan House
Jen brings a dynamic background in education and administration to her role at Sullivan House, where her warmth, humor, and solutions-oriented mindset make her an essential part of the team. With a natural ability to manage both the logistical and human sides of supportive living, Jen excels at creating structure while building authentic, encouraging relationships with residents. She is deeply committed to helping clients grow—professionally, personally, and emotionally—and takes pride in walking alongside them as they pursue stability and success.
Whether she’s coordinating daily operations, leading outings, or navigating complex case management, Jen approaches every task with passion and heart. She is a champion for her clients’ potential, often serving as both a grounding force and a relentless cheerleader for their goals.
A dedicated traveler and lifelong learner, Jen draws inspiration from the power of transformation. She’s especially motivated by the “before and after” journeys she witnesses at Sullivan House—milestones that reflect not only individual breakthroughs but ripple effects across the entire community. Her work is fueled by a belief that with the right environment, support, and mindset, anyone can change their life.
Keleigh Sullivan
Residential Operations Manager | Sullivan House
As Residential Operations Manager at Sullivan House, Keleigh Sullivan plays a pivotal role in creating and sustaining a culture of recovery, stability, empowerment, and forward momentum for adults living with severe mental illness. Her leadership is rooted in compassion and structure, and her mission is clear: to ensure every resident feels safe, supported, and capable of meaningful growth.
Keleigh brings a unique blend of experience in personal success coaching, early childhood education, and property management, paired with a deep, lived understanding of mental illness. Her coaching approach is person-first and purpose-driven, helping clients build confidence, set and achieve personal goals, and embrace their diagnosis in a way that empowers rather than limits. Her work has helped clients re-enter the workforce, reconnect with family, build romantic relationships, and sustain the consistent care and structure essential to long-term recovery.
Keleigh’s connection to this work is deeply personal—she is the proud sister of someone living with schizophrenia, and she draws on that experience to lead with intuition, warmth, and purpose. Outside of Sullivan House, Keleigh channels her creativity into DIY projects, gardening, and art, which she also shares with residents as therapeutic outlets. She’s also the loving dog mom to Georgie, her charismatic French Bulldog and unofficial house mascot—whose cuddles have a way of brightening every room he enters.
Lina Severino-Medina
Residential Operations Manager – Santa Barbara | Sullivan House
Lina brings over a decade of experience in behavioral health, residential care, and community-based support services to her role as Residential Operations Manager at Sullivan House’s Santa Barbara location. With a Bachelor’s degree in Psychology and an impressive history of working across group homes, treatment centers, and educational settings, Lina offers a uniquely well-rounded and trauma-informed approach to mental health care.
Throughout her career, Lina has specialized in supporting individuals with complex needs—ranging from severe mental illness and behavioral challenges to developmental disabilities and trauma. Her leadership style combines structure and empathy, ensuring that residents feel both safe and empowered in their recovery journey. From managing crisis intervention protocols to overseeing medication administration and coordinating individualized care plans, Lina is known for her calm presence, detailed oversight, and ability to build meaningful rapport with clients, families, and staff alike.
Passionate about breaking down barriers in mental health housing and deeply committed to client-centered care, Lina plays a crucial role in cultivating a stable, nurturing, and goal-oriented environment at Sullivan House. Outside of work, she’s a lifelong learner, mentor, and advocate who believes that every individual—regardless of diagnosis—deserves dignity, opportunity, and a place to call home.
Tehila Koshki
Client Engagement Specialist
Tehila brings a deep commitment to personal growth and wellness to her role as Client Engagement Specialist at Sullivan House. With over two decades of experience supporting and guiding others in a family and community setting, Tehila has developed a sharp intuition for identifying what individuals need to feel seen, supported, and empowered. Her background in wellness coaching has equipped her with a strong foundation in holistic health, behavior change, and sustainable lifestyle planning.
At Sullivan House, Tehila works closely with residents to help them clarify goals, rediscover purpose, and build healthy, meaningful routines. Her thoughtful, detail-oriented approach allows her to connect deeply with each client, organizing the small pieces of their daily lives into a bigger vision for long-term wellness. Passionate about intrinsic motivation and personal transformation, Tehila is dedicated to helping clients take ownership of their journey and feel proud of the progress they make—inside and out.