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Twenty-one professionals currently staff the CASA offices. Case Supervisors support volunteer Advocates.

Management Staff

Ann Marie RonsmanPresident & CEO, Interim Training Manager


Marilyn McQueeney– Program Director
JULIE BROWNIncoming Training Manager
AMANDA GUINNExecutive Assistant
Megan HershfeldCommunications & Development support Specialist
Susan McCormickCommunications & Development Manager
Stacey McDowellOffice Administrator
Lindsay MillerDevelopment Director
Alli Stephens – Marketing and Communications Director
Shellie TyrrellRecruiting Manager
Brittany WatsonEvent & Communications Coordinator

Advocacy Managers

Mandy Stegint – Optima/Tech Team, Audit Team


CASA Case Supervisors

Melissa Anderson – Game of Life Team Lead
Destin Hudek – GIFT Program, Family Finding
Oluchi Nwankwo – TBRI Team
Kristy O’Neal
Jennifer Reitmeyer – Anti-Sex Trafficking Team, TBRI Team
FRANCINE STANFIELDDevelopment Director
Susan Truscott – LGBTQ+ Initiatives Team Lead, Legislative Team, Audit Team
Victoria Warmuth – Anti-Sex Trafficking Team, Courtesy Visits

Staff Bios

Management Staff

Ann Marie RonsmanAnn Marie Ronsman

Ann Marie became the President & CEO of CASA Child Advocates of Montgomery County in February of 2021. She first joined CASA as a volunteer Advocate in 2014. Ann Marie took on the role of CASA Training Director in early 2018, and is also a Trust Based Relational Intervention Practitioner through Texas Christian University. In addition to overseeing both new volunteer training and continuing education efforts for the organization for the past 3 years, she has also spearheaded many CASA initiatives, including Trust Based Relational Intervention (TBRI) education for CPS, the Montgomery County District Attorney’s office, and numerous other community organizations. Ann Marie is well known in Montgomery and Harris Counties as an expert on the impact of childhood trauma, with a passion for the mission of CASA to positively impact children’s lives in the foster care system.

Ann Marie and her husband, Matt, live with their five children (three of whom are adopted) in Montgomery. She is a native Wisconsinite and a huge Green Bay Packer fan. They keep very busy with sports practices, homework and laundry. Ann Marie and Matt have led adoption and foster care ministries for many years. In her spare time (what is that?) she enjoys reading, gardening and travel. Her family also fosters Basset Hounds for Basset Buddies Rescue of Texas as well as dogs for Who Rescued Who. They’ve fostered over 30 dogs so far.

Marilyn McQueeneyMarilyn McQueeney

Marilyn came to CASA after working 30 years in early childhood education. For twenty of those years she owned and directed a large private school and child care center. After selling her school, she and her family moved to Montgomery County and became a CASA Advocate in February 2009. Marilyn joined the CASA staff November 2009 and was named Program Director in 2017. She is married with 5 children and 7 grandchildren.

Julie Brown

Julie joined the CASA team in January of 2022 as the Training Manager after many years as a volunteer Advocate.

Amanda Guinn

Amanda joined the CASA team in December of 2021 as the Executive Assistant.

Megan HershfeldMegan Hershfeld

Megan joined the CASA team in March of 2021 as the Communications & Development Support Specialist. She graduated from the University of California, Irvine with a bachelor’s degree in theatre and has over 15 years of operations and management experience. In search of an adventure Megan, a born and raised Southern Californian, packed up and moved to Texas in 2012. Coming from a small town, her family instilled in her a strong desire to actively participate and volunteer in her community. She has taught improvisation classes for foster children, chaired literacy events, worked on fundraising for various non-profits, and taught cooking and budgeting classes for teens that are ageing out of the system. She was the inaugural Provisional of the Year for The Junior League of The Woodlands and is an Associate Artist at North Coast Repertory Theatre. In her free time she enjoys, reading, quilting and hiking. Megan currently resides in The Woodlands with her fur baby, Stitch.

Susan McCormick

Susan first joined the CASA team in 2015 as Database Administrator, leaving in 2018 to pursue other opportunities. Susan rejoined the Development Team in 2021 as the Communications and Development Manager.

Stacey McDowellStacey McDowell

Stacey joined the CASA team in 2021 as our Office Coordinator. She’s had a lifelong passion for volunteer work, especially helping children, senior citizens, and animals. Stacey grew up in Montgomery, Texas, and later attended The Art Institute of Houston. She has experience working as an elementary art teacher, designer, entrepreneur, and insurance agent.

She and her husband have two children in who currently attend college.  In her spare time, Stacey loves spending time with her family, friends, rescue dogs Grady, Henry, and Toby, working on art projects, baking, and making pasta.


Lindsay MillerLindsay Miller

Lindsay Miller began serving as the Interim Development Director in April of 2021 after joining CASA as the Creative Development Associate in July of 2019. Lindsay became a volunteer Advocate in 2017 and served as Gala Chair for the 2019 CASA Speaks for Kids Gala: A Million Dreams, the Gala Coordinator for the 2020 CASA Speaks for Kids Gala: Black, White, and Silver Ball, and Concert Coordinator for the 2021 CASA Speaks for Kids Benefit Concert: Deep in the Heart of Texas. Lindsay is looking forward to growing awareness about CASA in the community. She has been married for 19 years to her husband, Marty. The couple lives in The Woodlands with their 4 children (2 girls, 2 boys) ranging from 7-18 yrs old. Lindsay is a talented singer, photographer, jewelry designer, and an overall creative soul.

Mandy StegintMandy Stegint

Mandy came to CASA in 2012 after working a little over 2 years with Child Protective Services in Montgomery County. Mandy’s vast knowledge of the CPS system has been exceptionally beneficial to our CASA program. It is very important to Mandy that she is able to work in a program where she can make a difference. Mandy earned her Associates degree in 2007 from Tomball College (now Lone Star College), her Bachelors in Criminal Justice in 2009 from Sam Houston State University, and in July 2011, her Masters in Administration of Justice and Security from University of Phoenix. Mandy has two children; Ryan, 20, a Navy Electrician’s Mate; and Madelyn, 13, doing her best in junior high school. Mandy and her two children enjoy spending time outdoors, especially camping. Mandy is also an active volunteer with Boy Scouts of America.

Alli StephensAlli Stephens

Alli joined the CASA team as Marketing and Communications Director in 2013. She has more than 12 years of non-profit experience, specializing in volunteer recruitment, donor development, marketing and public relations. Alli earned her Bachelor’s degree in Marketing from Texas A&M University (College Station) and is a proud Aggie former student. She is a member of the Leadership Montgomery County class of 2019. Alli lives in Conroe with her husband, Micah, children Clayton and Claire, and beloved dogs, Sam and Tessa. In her free time, Alli enjoys traveling, gardening, cooking and spending time with family.

Shellie TyrrellShellie Tyrrell

Shellie joined the CASA team in August 2017 as Recruiting Manager. Shellie has a Masters of Public Health from the University of Texas and a Masters of Social Work from the University of Michigan. She has over 25 years of experience in public health research and education, all focusing on women and children’s health and empowerment. Shellie became an Advocate for CASA in 2016 and, after realizing the incredible difference Advocates make in the lives of Montgomery County children, she joined the staff as a recruiter. She enjoys riding this incredible adventure of life with her husband and daughter. 

Brittany Watson

Brittany joined the CASA team in August 2021 as Events and Communications Coordinator.


Erica Adevikian

Erica joined the CASA team in December of 2021 as a Case Supervisor.

Melissa AndersonMelissa Anderson

Melissa Anderson joined CASA in 2018. She has a degree in Social Work and has a passion for supporting children and families. She and her husband have been foster parents to a total of 13 children and she spent several years working on the family ministry team at her church. In her spare time, she enjoys urban homesteading, documentary photography, and adventuring with her family.

Destin HudekDestin Hudek

Destin joined CASA after 5 years of working for law enforcement in Oregon, and Texas. She also spent 17 years in Radiology in Washington State. She has been a CASA Advocate since 2015. She has a degree in Human Services Management and is currently earning her degree in Correctional Program Support Services from the University of Phoenix. She and SGT 1st Class Nathan Hudek have been married for 9 years and have a grown son and daughter. Destin has a passion for working with the LGBTQ youth and hopes to bring her knowledge, and experience to serve the children of Montgomery County. Destin enjoys cooking, fishing, traveling, and spending time with her family.

Oluchi Nwankwo

Oluchi joined the CASA team in February of 2020.

Kristy O’Neal

Kristy joined the CASA team in April of 2021.

Jennifer ReitmeyerJennifer Reitmeyer

Jennifer Reitmeyer volunteered as an Advocate for 6 years before joining the CASA team in October of 2017. CASA is Jennifer’s passion, and she considers the Case Supervisor position to be her “dream job.” Before children, Jennifer worked for the Republican Party of Arkansas as a researcher and the Phil Gramm re-election campaign in the Houston office. She spent the next 20 years with her children at home, but she continued to volunteer in many different ways. Jennifer worked in multiple children’s ministries at her church. She served on The Woodlands Lacrosse Board as President and Treasurer for a combined 6 years. Jennifer also volunteered with Love Fosters Hope. Jennifer and her husband, Jay (a natural gas trader) met at Texas A&M and have lived in Connecticut and Arkansas, but they have always come home to Texas. They have 3 beautiful daughters – Reagan is a senior at The University of Arkansas majoring in Psychology and soon to be pursuing her masters to become a family counselor; Madison is a sophomore at Texas A&M University majoring in International Business and wanting to travel the world; Lauren is a junior in high school and is extremely involved – she plays violin in the orchestra, is the goalie for The Woodlands Girls Lacrosse, and is in French Club, Mock Trail and Math Club.

Francine Stanfield

Francine joined the CASA team in January of 2022 as a Case Supervisor after several years as a volunteer Advocate.

Susan TruscottSusan Truscott

After serving as a volunteer Advocate for a number of years, Susan joined the CASA staff as a supervisor in January of 2019.

Victoria WarmuthVictoria Warmuth

Victoria joined the CASA team in 2019 after two and half years as a conservatorship caseworker with Child Protective Services in Montgomery County. She holds a Bachelors degree in Human Development and Family Studies and is a soon-to-be graduate with a Masters in Social Work. Victoria enjoys spending time with friends and her German Shepherd mix (Rocky), as well as creating artwork.