Staff

Employment at Cornerstone Ranch is not a job or part of a career path. It is about about being called to a lifestyle of service, with many of our staff living on site and in community together. They are dedicated to our residents 24/7 and work to ensure that every minute our residents and day program participants spend on campus is full of joy and purpose.

Administrative & Operations

Mary Klentzman

Executive Director

Mary joined the Cornerstone Family in May, 2014, with over 14 years of experience working for and with nonprofits that serve families affected by disability. As the mother of seven children, one of whom has severe cerebral palsy, she and her husband, Rick, are very aware of the needs and concerns of families who have a child with a disability. Her own desire to find opportunities for her son led her to participate on numerous committees and councils that impact state policies related to the services offered to people with disabilities. As a result, she is perfectly suited to lead Cornerstone into a new era and help expand our offerings to the special needs community. Mary is blessed to have children who are talented musically, academically and athletically and enjoys watching each of her children grow and mature into adulthood. Mary’s family continues to expand with two spouses and three grandchildren.

Daniel & Rachel Brasch

Property Manager & Executive Assistant

Rachel first joined Cornerstone as our Office Manager & Executive Assistant in summer of 2014. She graduated from the University of Texas with a degree in Human Development & Family Services with a focus in Disability Studies. Rachel has worked with individuals with disabilities for over ten years. Prior to working for Cornerstone, she was on staff with Young Life for 6 years, three of which were spent directing McKinney Young Life’s Capernaum ministry for adolescents with special needs. Daniel also worked on staff with Young Life, as a Capernaum volunteer, youth pastor, and as a project manager in the home building industry before becoming the Property Manager at Cornerstone Ranch. He is a skilled handyman and craftsman who loves using his gifts to serve in such a unique ministry setting. Daniel and Rachel have a two-year-old daughter and look forward to raising kids as part of the Cornerstone family.

Residential Program

Doug & Miranda Schulte

Residential Director & Lead House Parents

Doug and Miranda met at and graduated from Dallas Baptist University. During their time at DBU, both Doug and Miranda volunteered with Capernaum Young Life (Young Life’s ministry to the special needs population). Upon graduation, Doug took over as the Area Director for Capernaum Young Life in Dallas, and Miranda became a teacher at Notre Dame School of Dallas. In August of 2006, the Schultes joined the Cornerstone staff as direct care providers and have faithfully loved and cared for our residents ever since. They now serve as our Lead House Parents and provide leadership over our residential program. Miranda is in the process of completing her Nursing degree in order to further meet the needs of the Cornerstone community. The Schultes love raising their two daughters in such a unique community.

Larry & Courtney Causey

House Parents

Day Program

Terri Eck

Day Program Director

Terri has been an incredible addition to the Cornerstone team and comes with significant expertise and leadership experience. Terri is married with two children, one of whom has special needs. Her desire to help her son led to a career change from the medical field to special education. Terri taught in Allen ISD for 21 years and has special education experience in self-contained classrooms, inclusion, structured TEACCH, behavior supports, in-home supports, social skills groups, social stories, and job coaching. She also has specialized training in picture exchange communication systems (PECS) and Autism support methods through REGION 10 Autism Specialist Academy I and II. Terri was the previous Committee Chair for Allen Kiwanis Angel League (Special Needs T-Ball program), is a current volunteer and chaperone for Allen Special Olympics Delegation and has held previous board positions with both organizations. Terri enjoys attending Special Olympics events and traveling with her family.

Shelly Jones

Day Program Instructor

Shelly became part of the Cornerstone Family in May of 2017. Shelly spent many years volunteering for summer camps for Easter Seals and the Muscular Dystrophy Association before graduating from the Occupational Therapy Assistant program at Amarillo College in 2000. She has spent her years since working as a Occupational Therapy Assistant. She has worked in long term care, but the majority of her work has been in pediatrics in both home health and clinic settings. Shelly is married and has two girls who are 13 and 9 years old. 

Lindsey Mitlyng

Day Program Instructor

Lindsey came on staff at Cornerstone Ranch in May of 2017 as a Day Program Instructor. She is originally from McKinney, graduated from the University of Arkansas in 2014 and married her husband, Mathew, in 2015. Lindsey has always had a passion and calling to work with individuals with special needs and has volunteered serving this population in numerous ways throughout her life. She worked as a speech therapy assistant, primarily with children with disabilities, for three years before coming to Cornerstone.

Andrew Klentzman

Day Program Instructor

Andrew is majoring in Rehabilitation Studies at the University of North Texas. He has served six summers as a leader at Joni and Friends Family Retreat for families affected by disabilities. He also has a great deal of experience serving as an attendant for his older brother Jonathan who has severe cerebral palsy. His sense of compassion and understanding for others dealing with disabilities is deepened by the fact that he not only has a sibling with special needs, but he himself has mild cerebral palsy as well. Andrew has been active in the Fellowship of Christian University Students (FOCUS) for three years and served as a small group leader with this campus ministry. His experience with FOCUS has strengthened his walk with Christ and prepared him in many ways to serve the Cornerstone Ranch community.