EXECUTIVE DIRECTOR

Marie serves as the Executive Director of Siena House, where she is dedicated to ensuring mothers and babies have the stability, support, and community they need to thrive. With a Master of Public Health and more than a decade of experience in nonprofit leadership and maternal and child health, Marie brings both strategic vision and a deep commitment to relationship-based care.

Throughout her career, Marie has worked in the areas of housing stability, maternal well-being, mental health, and social services. She has a passion for supporting vulnerable families through programs that combine safe housing with comprehensive wraparound support. Her experience includes program development, grant management, partnership building, and organizational leadership, with a focus on strengthening systems that create lasting stability for mothers and children.

Beyond her role at Siena House, Marie is actively engaged in the broader community through board service and collaborative partnerships. She believes lasting change happens when organizations work together and when leadership is rooted in compassion, accountability, and community connection. Outside of her professional work, Marie enjoys traveling, exploring new creative projects, and finding ways to build community both inside and outside the nonprofit world.

PROGRAM MANAGER

Mariah serves as Program Manager at Siena House, where she oversees the daily operations of the residential program, including staff supervision, intake coordination, facilities oversight, day-to-day programming, and community outreach. With a background in direct service and residential programming, she brings a compassionate, solutions-oriented approach to supporting women and families experiencing homelessness. She has been with Siena House for three years and is committed to fostering a trauma-informed environment while ensuring compliance with program policies and advancing the organization’s mission. She remains closely connected to direct service, working alongside participants to ensure a safe, structured, and supportive environment.

Mariah is passionate about supporting women and families during pivotal moments of change and growth. What she loves most about working at Siena House is witnessing participants rediscover their strength, rebuild confidence, and step into greater stability and independence. Outside of work, Mariah enjoys spending time with her three dogs, being outdoors, and connecting with friends, simple joys that help her recharge and show up fully for the community she serves.

OFFICE MANAGER

Kristie has worked in the nonprofit sector since 1993 and brings more than 25 years of experience as an office administrator. She plays a vital role in connecting community members to our mission. She is often the first face visitors see, warmly welcoming guests and creating a sense of hospitality from the moment they arrive.

Along with working in the office, she helps coordinate our weekly diaper dispensary, oversees volunteer engagement, receives and organizes donations, and ensures Siena House remains organized and running smoothly to best serve our mothers and babies.

Kristie is deeply grateful to be part of a mission that supports underserved women as they establish new beginnings for themselves and their babies. Witnessing the strength and resilience of the women served at Siena House is both inspiring and meaningful to her work.

Outside of the office, Kristie enjoys spending time with her husband and three adult children. She loves singing, playing the piano and guitar, cooking, gardening, and gathering with friends.

CASE MANAGER

Cindy Glenn serves as a Case Manager at Siena House, providing individualized support to program participants as they work toward housing stability and personal goals. Through case management, she helps connect mothers to critical resources, including healthcare, employment support, and community services, while fostering trust and long-term stability.

OCCUPATIONAL THERAPIST

Caitlin earned her Master’s degree in occupational therapy from Tufts University in 2017 and has since focused her career in both pediatrics and adult mental health. After birthing her first baby in 2024, Caitlin further realized the value that OT can bring to new mothers by supporting the daily co-occupations between mother and baby, as well as supporting maternal mental health. This newfound passion led her to join the Siena House team as our first occupational therapist. 

Caitlin’s approach is holistic, strengths-based, and person-centered. She works individually with participants and their babies to support the transition into the parenting role, day-to-day function in co-occupations, and infant development. Caitlin also leads a weekly parenting class and has enjoyed bringing her OT lens to the class. In addition, Caitlin facilitates a weekly play circle for Siena House participants, alumni, and the general public, which focuses on caregiver connection and infant/young toddler development. 

Over a decade before discovering a career opportunity at Siena House, Caitlin witnessed Siena’s positive impact on families when her own sister and niece lived and thrived here. Because of this, Siena House has always held a special place in her heart and further inspired her to pursue a place on the team years later. 

Caitlin recently moved back to Santa Cruz with her husband, son, dog, and turtle. Her hobbies include traveling, singing, hiking, and playing with her son.

THERAPIST

Cailyn Hymer-Costa, LCSW, is a Licensed Clinical Social Worker who provides therapeutic services to both current and alumni participants at Siena House. Throughout her career, she has had the privilege of working with individuals navigating mental health challenges such as anxiety, depression, trauma, and substance use disorders. She understands how deeply these experiences can intertwine and impact daily life, and she is committed to offering compassionate support along with tools for healing and growth.

Cailyn is especially passionate about supporting individuals through the emotional and psychological complexities of pregnancy, the postpartum period, and early parenthood. Her work centers on helping clients adjust to new motherhood roles, move through the evolving stages of pregnancy, and face the often unspoken challenges that can arise after birth. She brings a thoughtful presence to those navigating moments of joy and anticipation, as well as fear, overwhelm, and isolation.

As a mother of two young children, Cailyn brings both professional expertise and lived experience into her practice. Her therapeutic approach is grounded in authenticity, transparency, and a deep understanding of motherhood, creating a space where clients feel seen, supported, and empowered in their journey through Motherhood.

THERAPIST

Camille Rocha is a Licensed Clinical Social Worker who provides counseling and emotional support to participants. Her work focuses on trauma-informed care, helping mothers heal, build resilience, and strengthen their relationships with their children.

SUPPORT STAFF

Yvette is a compassionate advocate for mothers, serving as Night Support staff at Siena House. She supports women experiencing homelessness by creating a safe, stable, and nurturing environment throughout participants' pregnancy and during their baby’s earliest stages of development.

With a background in case management and experience working for mental health organizations, Yvette brings a trauma-informed, client-centered approach. She provides attentive care, and practical guidance to mothers navigating vulnerable transitions. Committed to continuous learning, she seeks to grow and strengthen the support she provides to families.

Grounded in empathy, integrity, and dignity, Yvette helps families build a peaceful foundation for the future. Outside of work, she enjoys hiking, working out, and spending time with her family, experiences that keep her grounded and reflect the presence she brings to every mother she serves.

MARKETING AND COMMUNICATIONS INTERN

Elsa serves as the Marketing and Communications Intern at Siena House, where she supports the organization’s outreach efforts through social media and digital content. She helps share the stories of the mothers and babies supported by Siena House while raising awareness about the organization’s mission in the community.

Elsa graduated from California State University, Monterey Bay, where she studied Collaborative Health and Human Services with a concentration in Public Administration and Nonprofit Management. She enjoys using storytelling and creative content to help nonprofits connect with their communities and supporters.

Her favorite part about working at Siena House is helping share the impact of the organization’s work and supporting a mission that uplifts mothers and families. Outside of work, Elsa enjoys going to the beach, shopping, trying new coffee spots, and spending time with her friends and her sister.