For more than 30 years, Lone Star CASA (Court Appointed Special Advocates) has worked to provide our courts with the information needed to act in the best interests of abused and neglected children in Rockwall and Kaufman Counties, and to ensure that they’re placed in safe, permanent homes as quickly as possible.

Our Staff

Lone Star CASA
Serving Rockwall and Kaufman Counties

The Lone Star CASA Team

Support for our wonderful volunteers and our community comes from our passionate and dedicated staff.

New executive director Jacob Griffin

Jacob Griffin

Executive Director

My name is Jacob Griffin, and I am the Executive Director of Lone Star CASA. I have a background in finance, operations, and nonprofit leadership, along with an MBA and a proven track record of leading impactful initiatives in both nonprofit and public sector organizations. My work has focused on strengthening financial performance, building high-performing teams, and creating meaningful, lasting impact in the communities I serve. Outside of work, I enjoy spending time with my wife and help raise our 16-year-old nephew. You can also find me on the golf course or spending time with friends.

Elizabeth Mosman

Operations Director

My name is Elizabeth Mosman, and I am the Program Director at Lone Star CASA. I have worked in child welfare for over 15 years and during this time I worked with child placing agencies and residential programs serving youth who have experienced abuse and/or neglect. I currently live in Rockwall with my husband and two daughters. Outside of the office, I enjoy being with my family watching our favorite sports teams, trying new restaurants, and spending time at the pool or the lake.

Danielle Key

Child Advocacy Specialist

My name is Danielle Key, and I serve as a Child Advocacy Specialist with Lone Star CASA. I am a former foster parent, an adoptive parent of two amazing children. I have been passionately serving and been a part of the foster care and adoption community for nearly 15 years. I have learned a tremendous amount along the journey and look forward to sharing my knowledge and experiences with others. I have a background in Special Education, serving most recently within Terrell and Rockwall ISD. Prior to working in Education, I held a corporate position in financing education for private post-secondary institutions. Outside of the office, I enjoy spending time with my children on our hobby farm, serving in church, thrifting, riding dirt bikes and pretty much any outdoor activity to include tent camping. I am excited for the new role with Lone Star CASA, and look forward to making a positive impact in the lives of children in Rockwall and Kaufman County.

Lindsay Brosin

Program Manager

My name is Lindsay Brosin, and I serve as the Program Manager with Lone Star CASA. I received a Master of Science in Human Development and Early Childhood Disorders from The University of Texas at Dallas and have previously worked as an ECI Intervention Specialist and high school FASE teacher in Wylie ISD. Outside of the office, I enjoy spending time with family and friends, and serving the Wylie ISD community through Wylie Way outreach events.

Kimberly Gardner

Community Engagement Coordinator

Hi, I'm Kimberly Gardner. I have a background in social work and a degree in Psychology which has helped me gain a unique perspective on the challenges faced by children and families involved in the child welfare system. My primary goal is to recruit volunteers at various community events & engage with the community to spread the mission of Lone Star CASA.

Mahoganie Gaston Headshot

Mahoganie Gaston

Volunteer Specialist 

My name is Mahoganie Gaston, and I am a seasoned advocate for special populations with over 15 years of experience supporting youth, families, and adults in crisis. My career spans education, child welfare, and nonprofit sectors, where I have consistently identified service gaps and developed responsive programming. I have worked in homeless shelters, residential youth facilities, and school districts across the DFW metroplex, connecting vulnerable populations with vital resources. I am also a birth and postpartum doula expanding support for at-risk mothers and hold a 200-hour yoga certification with a focus on trauma-informed and prenatal care. Through every stage of my work, I remain committed to equity, crisis response, and long-term community healing. I am a skilled connector and collaborator, equipping individuals and organizations with the tools needed for sustained impact.

Samantha Hall

Child Advocacy Specialist

Samantha Hall serves as the Child Advocacy Specialist at Lone Star CASA. She holds a Master of Social Work (MSW) from the University of Texas at Arlington and a Bachelor of Social Work (BSW) from the University of Texas of the Permian Basin. With a professional background in supporting children and families through various stages of the foster care system, Samantha brings compassion and expertise to her role. Outside of work, Samantha enjoys spending time with her children and grandchildren, reading, and staying involved in her community. A passionate sports fan, she proudly supports the San Antonio Spurs, Dallas Mavericks, Dallas Wings, Texas Rangers, Dallas Cowboys, and Dallas Stars.

Angela Frear

Development Director

My name is Angela Frear, and I am the Development Director for Lone Star CASA. I have 20+ years of experience building high-impact volunteer programs and corporate engagement strategies. I also have a track record of designing meaningful, mission-aligned volunteer experiences and mobilizing community support across North Texas. I bring to CASA strong leadership, strategic vision, and a deep passion for service.

Lorna Feldhousen

Office Administrator

My name is Lorna Feldhousen, and I am the Office Administrator at the Lone Star CASA Rockwall office. I currently live in Rockwall with my husband, son and two dogs. We moved from Tempe Arizona approximately 20 years ago and have been in Rockwall for the past 16 years. During my free time, I volunteer as a swim official for USA swimming and YMCA swimming. My son is swimming for McMurry University in Abilene. I am excited to help support the volunteers of CASA.

Michelle Tate

Child Advocacy Specialist

Hi! I’m Michelle Tate. I’m married to my husband, Lance, and we have two girls, Bennett and Cooper. When I’m not busy, I love reading and baking. I’ve spent the last 15 years working in various child welfare roles, and I’m passionate about supporting children and families. I’m excited to continue this work and look forward to being part of Lone Star CASA.

Mariela Lomeli
Marketing Specialist

My name is Mariela Lomeli, and I am the Marketing Coordinator for Lone Star CASA. I graduated from Texas Tech University with a degree in advertising and have worked with nonprofit organizations and with children. I spend some weekends as an art instructor for art therapy workshops. In my free time, I enjoy vacationing in Jalisco, Mexico, walking my dog Chappie at the park, and watching K-Dramas.

Tahj Walker

Juvenile Empowerment Specialist

My name is Tahj Walker, and I serve as a Juvenile Empowerment Specialist with Lone Star CASA. I previously worked as a Child Protective Investigator with the Department of Family and Protective Services and centered my legal studies around child abuse victimization, domestic violence concerns and avenues to reach at-risk communities in need of additional resources. During my down time, I teach my 2-year-old daughter about Dallas Cowboys fandom, and we sing melodies constantly (I did A Cappella Choir in high school and college). I also enjoy cooking numerous cuisines and taking road trips to see family in various parts of the country.