Meet Our Team

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Margie Williamson
Executive Director

Margie@arcsc.org
Office: 803-748-5020, ext. 5#

 

Margie Williamson, Executive Director, began with The Arc of South Carolina in April of 2012. She had previously been in the nonprofit sector for more than 10 years. She brings a unique family perspective to the role of the Executive Director's position for The Arc of South Carolina because she is the parent of a child with Autism. She is passionate about her work with individuals with intellectual and developmental disabilities. Through her early college years, she worked diligently with children on the Autism Spectrum, assisting with caregiver relief as well as advocating for services. During her time with The Arc of South Carolina, she has become a visible spokesperson on issues impacting individuals with intellectual and developmental disabilities, as well as their families.

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DeAndrea McMullen
Director of Case Management

DeAndrea@arcsc.org
Cell: 803-529-5308

DeAndrea McMullen, Director of Case Management, joined The Arc of South Carolina in May of 2015. She is a native of Rock Hill, SC, and a 2009 graduate of Francis Marion University. DeAndrea's passion for working with individuals with special needs started with her work with children on the Autism Spectrum as a behavioral therapist. She remains enthusiastic about the opportunity to continue serving individuals with disabilities with such a great organization.

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Danni Bloom
Director of Outreach & Policy

Danni@arcsc.org
Cell: 803-719-0137

Danni Bloom, Director of Outreach & Policy, is originally from the low country region of South Carolina and has lived all over the state, but now calls Chapin home. In October of 2000, Danni’s two-year-old son was diagnosed with autism, so The Arc’s mission is close to her heart. She graduated from the University of South Carolina with a Bachelor’s Degree in Social & Behavioral Sciences and received her Master of Business Administration Degree (MBA) from The Citadel. She served as a board member for The Arc of South Carolina for almost four years before transitioning into a contract position within the organization. Advocacy is her passion and she looks forward to continuing those efforts with The Arc of South Carolina family.  

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Rachel Harry
Director of Quality Assurance

Rachel@arcsc.org
Cell: 803-665-0155

 

Rachel Harry, Director of Quality Assurance, grew up in San Diego, California. She joined our team at The Arc of South Carolina in August of 2016, after receiving her Bachelor's Degree in Public Health from the University of South Carolina. She is dedicated to working with individuals with lifelong disabilities to help them reach their maximum potential. Prior to joining The Arc, she provided direct patient support at various centers for disabilities. She enjoys working for an organization where she can help individuals with disabilities achieve increased respect and autonomy.

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Joe Covey
Case Management Supervisor

Joe@arcsc.org
Cell: 843-252-2579

Joe Covey, Case Management Supervisor, is originally from New Jersey. He lived in south Florida for 6 years prior to joining The Arc of SC in October of 2018, after moving to Myrtle Beach. Joe has a Bachelor's Degree in Psychology from Hofstra University. Before joining The Arc of South Carolina, Joe worked with both individuals with special needs and individuals receiving treatment for substance. He is passionate about this population and is eager to continue to provide assistance to individuals with disabilities and their families. Joe's service areas include Horry, Williamsburg, and Georgetown Counties.

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Derek Smoot
Case Management Supervisor

Derek@arcsc.org
Office: 803-748-5020, ext. 6#

 

Derek Smoot, Team Lead, is originally from Maryland and graduated from the University of Maryland with a Bachelor's Degree in Criminal Justice. He moved to Columbia in 2018. He is excited to work with The Arc of South Carolina and looks forward to assisting individuals and their families in achieving their goals. Derek's service areas include Saluda, Aiken, Allendale, and Barnwell Counties.

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Ashleigh Little
Team Lead

Ashleigh@arcsc.org
Cell: 864-309-9172

Ashleigh Little, Team Lead, joined the Arc of South Carolina in September of 2018.  She is a lifelong resident of the South Carolina Upstate who enjoys photography and creating art.  She received her Bachelor's Degree in Art Therapy from Converse College (2011) and a Master's Degree in Human Behavior from Capella University (2014).  Ashleigh has a heart for working with others to improve their lives, as demonstrated by her history working with various populations.  She is thrilled to bring her passion to The Arc of South Carolina, and to be a part of such a wonderful organization. Ashleigh's service area includes Greenville County. 

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Labresha Ratchford
Team Lead

Labresha@arcsc.org
Cell: 864-559-0632

Labresha Ratchford, Team Lead, joined The Arc of South Carolina's team in April of 2019. She is a native of the Upstate area and received a Master in Business Administration Degree (MBA) with a concentration in Human Resources Leadership from Strayer University in 2021. She brings with her 9 years of experience working with individuals with intellectual and developmental disabilities. She is the mother of 2 beautiful children and is very excited to continue to work with the families and clients of this great organization. Labresha's service areas include Spartanburg, Union, and Cherokee Counties.

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McCall Rice
Team Lead

McCall@arcsc.org
Cell: 843-252-1015

 

McCall Rice, Team Lead, grew up in Asheville, North Carolina and obtained her Bachelor's Degree in Social Work at the University of South Carolina in Columbia. McCall's personal passion for advocacy started at a young age, advocating and providing support for her friends and family members with intellectual and developmental disabilities. McCall was a camp counselor for four years at First Shine, an overnight and day camp for children and young adults with disabilities. She eventually assumed the role as Camp Director. McCall interned at The Arc of South Carolina for two years and joined the staff full-time in May of 2020. McCall's service areas include Charleston County and Edisto Island.

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Alyssa Tanczos
Case Manager

Alyssa@arcsc.org
Cell: 803-243-0542

 

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Dyan Clary
Case Manager

Dyan@arcsc.org
Cell: 864-341-5424

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Bryan Antonoff
Case Manager


Bryan@arcsc.org
Cell: 843-301-4916

 

Alyssa Rosenfeld Tanczos, Case Manager, moved to South Carolina from New York and joined our organization in January of 2018.  She came to us with 13 years of experience working with individuals with disabilities in the nonprofit, special needs field. Her experience ranged from working with adults in a day program, and a community and residential setting.  Alyssa was also an instructor for adults with disabilities, and worked with children in a residential foster facility.  Alyssa has always had a passion to work with individuals with disabilities, helping them become as successful as possible. In Ohio, Alyssa helped a wheelchair sports team and while in New York, she assisted a special needs soccer team.  She enjoys helping individuals become as independent as possible and working with wonderful families. Alyssa's service area includes York County.

Dyan Clary, Case Manager, joined The Arc of South Carolina in September of 2020. She is a Lander University graduate with a Bachelor of Science Degree in Psychology. Dyan has always had a heart for helping others. At 14 years of age, while teaching her uncle the alphabet, she discovered her passion for working with people who have special needs.  Dyan has many years of experience in direct care, case management, and supervisory roles in the residential community with the South Carolina Department of Disabilities and Special Needs. She is also passionate about her family, books, music, and the beach. Dyan's service area includes Laurens County.

Bryan Antonoff, Case Manager, was born and raised in New York where he attended St. Joseph's College and obtained a dual Bachelor's Degree in Psychology and Speech Communications. His love for working with people with special needs stems from his lifelong support of his twin brother, who is on the Autism Spectrum. Before moving to South Carolina, Bryan worked as a Direct Support Professional, a Behavior Technician, a Residential Manager, and a Case Manager. He is excited to jump back into case management with The Arc of South Carolina. Bryan's service areas include Berkeley, Calhoun, Bamberg, Colleton, and Orangeburg Counties.

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Darcie Weiser
Case Manager

Darcie@arcsc.org
Cell: 803-665-0196

 

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Hayden Redding
Case Manager

Hayden@arcsc.org
Cell: 864-202-8655

 

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Takicia Otero
Case Manager

Takicia@arcsc.org
Cell: 803-665-0431

 

Hayden Redding, Case Manager, is originally from the north-side of Greenville, South Carolina, but now lives in Anderson County. Hayden received her Bachelor's Degree in Sociology and a double-minor in Child & Family Studies and Psychology at Lander University. During her college internship, she worked at United Ministries with the homeless population. Hayden has a passion for helping individuals and families with special needs. She volunteered with the Burton Center, and worked as an Early Interventionist for almost 3 years with Ahead Start. These experiences provided her with many resources that will be helpful as a case manager at The Arc of South Carolina. Hayden's service area includes Anderson County.

Takicia Otero, Case Manager, is originally from New Jersey, but moved to South Carolina in 2006. She has served children with special needs for over 20 years. Her passion for helping children and their families led her to pursue a Bachelor of Science Degree in Sociology from Coker University. Takicia previously worked as a Case Manager with the Department of Social Services. She remains excited about working with The Arc of South Carolina to advocate and support children and families who have been affected by intellectual and developmental disabilities Takicia's service areas include Darlington, Florence, Chesterfield, Sumter, and Clarendon Counties.

Darcie Weiser, Case Manager, is originally from Colorado. She attended the University of Northern Colorado in Greeley, and then earned her Bachelor's Degree in Psychology from the Metropolitan State University of Denver in 2004. She moved to Columbia in 2014 and worked as an ABA therapist, and then an Early Interventionist, prior to becoming a Case Manager at The Arc of South Carolina. Darcie continues to enjoy assisting families by helping them obtain the resources and supports needed to reach their goals. Darcie loves spending time with her children, animals, and also enjoys the outdoors. Darcie's service area includes Lexington County.

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Jasmaine Hughes
Case Manager

Jasmaine@arcsc.org
Cell: 864-772-9125

Jasmaine Hughes Miller, Case Manager, is a native of Cowpens, South Carolina. She graduated from South Carolina State University where she received a Bachelor's Degree in Family and Consumer Services/Business. Jasmaine has worked with individuals with special needs and disabilities for the past seven years. She is passionate about her work, her husband, and her family. Jasmaine's service area includes Spartanburg County.

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Abby Rivera
Case Manager

Abby@arcsc.org
Cell: 803-665-0504

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Lauren Ammermann
Case Manager

Lauren@arcsc.org
Cell: 864-341-6169

Abby Rivera, Case Manager, was born and raised in Puerto Rico.  She has lived in New York, Connecticut, Virginia, Germany, Georgia and South Carolina. She earned a Bachelor of Science Degree in Psychology from Columbia Southern University. Abby’s passion is to help parents of newly diagnosed children understand their child’s diagnosis and help them find the resources available to support them. She has previous experience working in the human services industry, and has a 9-year-old son who has been diagnosed with Autism, Type 1 Diabetes, and ADHD. Abby's service areas include Richland, Fairfield, Lancaster, and Kershaw Counties.

Lauren Ammermann, Case Manager, is originally from Cheraw, South Carolina but has relocated to Easley. Lauren received her Bachelor’s Degree in Early Childhood Education from the University of South Carolina. Lauren enjoys working with individuals with special needs and their families. Before joining the Arc of South Carolina, Lauren worked as an Early Interventionist. Lauren looks forward to working with her clients and their families, and is excited about setting up services to help meet needs. Lauren's service area includes Oconee County.

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Elizabeth Fields
Case Manager

Elizabeth@arcsc.org
Cell: 864-794-0604

Elizabeth Fields, Case Manager, is a native of Ware Shoals, South Carolina. She has an Associate's Degree in Arts from Piedmont Technical College. She also has a Bachelor's Degree in Sociology from Lander University. Elizabeth has a passion for working with children and adults with special needs. Elizabeth's service areas include Laurens, Greenwood, Abbeville, and McCormick Counties.

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Liz Hawkins
Case Manager

Liz@arcsc.org
Cell: 843-304-0697

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Jennifer Hilligus
Case Manager

Jennifer@arcsc.org
Cell: 843-940-0994

Jennifer Hilligus, Case Manager, is originally from the Finger Lakes Region of New York State. She received a Bachelor's Degree in Criminal Justice from Suny Brockport. Her previous work experience includes foster care program management and working with youth and families for more than 10 years. Jennifer moved to South Carolina in 2020 and is excited to be here on this new adventure with The Arc of South Carolina. Jennifer's service area includes Myrtle Beach.

Liz Hawkins, Case Manager, was born and raised in Columbia, SC. She earned a Bachelor’s Degree in
Social Work from Limestone College in 2013. Liz worked as a social worker in Hospice before discovering her true passion in working with people who have disabilities and/or special needs. She is thrilled to join The Arc of South Carolina and have the opportunity to serve and be an advocate for clients in her community. In her spare time, Liz enjoys spending time with her daughters at the beach. Liz's service areas include the Charleston and Dorchester county areas.

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Nicole Damanis
Case Manager

Nicole@arcsc.org
Cell: 843-252-7445

Nicole Damanis, Case Manager, is an Illinois native who moved to the Charleston, SC, area with her husband and three dogs in July 2021.  She graduated from Indiana State University with a Bachelor’s Degree in Psychology.  Nicole enjoys photography and spending time outdoors.  She has worked with the mental health population and is excited to grow with the team at The Arc of South Carolina. Nicole's service areas include Moncks Corner and Goose Creek.

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Jada Howard
Case Manager

Jada@arcsc.org
Cell: 864-794-0603

Jada Howard is a native of Greenville, South Carolina. She joined the team at The Arc of South Carolina in August 2021. Jada graduated from Mars Hill University and received her Bachelor's Degree in Social Work. She is excited to embark on her new journey as a Case Manager to help people with special needs. Jada looks forward to meeting with clients and families and setting up services to help them reach their goals. Jada's service areas include Pickens and Greenville Counties.

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Paige Constantino
Case Manager

Paige@arcsc.org
Cell: 864-205-8982

Paige Constantino, Case Manager, is a native of Greenville, South Carolina and graduated from Coastal Carolina University. She has worked in the human services field since 1999, including the Department of Social Services and the Department of Mental Health. She has a passion for making a difference in the lives of others and has enjoyed working as a case manager for individuals with intellectual and developmental disabilities for the past 12 years. Paige's service area includes Spartanburg County.

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Amy Siders
Case Manager

Amy@arcsc.org
Cell: 843-304-5223

Amy Siders, Case Manager, is from West Virginia, where she lived her entire life before moving to Hilton Head Island with her husband Alan in 2018 and fulfilling a lifelong dream of living by the shore. She is a graduate of West Virginia University with a BA in Psychology, and completed her Master’s Degree in Counseling at Marshall University Graduate College. Amy has worked as a Case Manager for over 20 years, serving different populations. She is passionate about advocating for
families and finding solutions to difficult situations. Amy has two adult children. In addition to being a mom, Amy enjoys painting and hunting for shells and other beach treasures. Since moving to the Lowcountry, Amy has enjoyed photographing the beautiful surroundings, especially the ocean, sunsets and shore birds. Amy's service area includes Beaufort County.

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Casey Hellthaler
Case Manager

Casey@arcsc.org
Cell: 803-967-8610

Casey Hellthaler, Case Manager, recently moved to Cayce, South Carolina from Connecticut. She is a 2017 graduate from Emmanuel College in Boston, Massachusetts where she earned a Bachelor's Degree in Psychology. She has previously worked with individuals with disabilities as a Direct Support Professional and is excited to be part of the team at The Arc of South Carolina where she can help clients and their families. Casey's service areas include Columbia, Hopkins, and Eastover. 

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Amanda Harris
Case Manager

Amanda@arcsc.org
Cell: 803-869-0747

Amanda Harris, Case Manager, joined The Arc of South Carolina in January 2022. She is a Winthrop University graduate with a Bachelor of Science Degree in Special Education. She is currently working to get her Master's Degree in Divergent Learning from Columbia College.  Amanda has always had a heart for helping those with disabilities. At 15 years of age, she discovered her passion for working with people who have special needs while working as a peer buddy.  Amanda has many years of experience in teaching special education at the elementary and high school level.  She is passionate about her family, cooking, and the mountains, and is excited to be a part of The Arc of South Carolina. Amanda's service areas include Lexington, Gilbert, Leesville, and Pelion.

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Lashanda Williams
Case Manager

Lashanda@arcsc.org
Cell: 803-665-0424

Lashanda Williams, Case Manager, grew up in Kingstree, SC but later moved to Charlotte, NC. There she received her Bachelor's degree in Psychology with a minor in Child and Family Development from the University of North Carolina, Charlotte. Prior to moving back to Columbia, SC, Lashanda taught preschool for five years and that's where she developed her passion for working with children with special needs. Lashanda worked as an Early Interventionist before joining The Arc of South Carolina. Lashanda is looking forward to helping clients and families reach their goals. She is excited about working with such a great organization. Lashanda serves the Harbison area.

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Irene Shockley
Case Manager

Irene@arcsc.org
Cell: 864-341-9798

Irene Shockley, Case Manager, joined The Arc of South Carolina in April, 2022. She has a Bachelor’s degree in Religious Studies from the University of Virginia and a Master’s degree in Education from Claremont Graduate University. Irene taught second grade and fourth grade for several years, and then became a case manager in 2008. She is passionate about serving individuals with disabilities and working with them to achieve their goals. Irene lives with her husband, Ernie, and their three dogs, one cat, and four chickens. Irene's service area includes Pickens county. 

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Marcia Jaggers
Case Manager

Marcia@arcsc.org
Cell: 864-788-2789

Marcia Jaggers, Case Manager, joined The Arc of South Carolina in February of 2022. She is a native of Chesterfield, SC but has resided in Spartanburg, SC since 2007, and now calls that home. She graduated from Lander University in 1998 with a Bachelor's Degree in Sociology, and received her Master's of Science Degree in Human Services with an emphasis on Community Psychology Counseling from Springfield College in 2006. She has worked in the field of Disabilities and Special Needs for more than 15 years and feels that it is her passion to continue to serve this population.  She is married with 2 adorable sons.  Marcia's service area includes Union County.

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Jasma Savage
Case Manager

Jasma@arcsc.org
Cell: 843-301-1580

 

Jasma Savage, Case Manager, is from Ridgeland, South Carolina. Jasma joined the Arc of South Carolina in February of 2022. In 2011, she graduated from the University of Maryland Eastern Shore with her Bachelor's Degree in English. Jasma has worked as a Child Service Professional for more than five years. Additionally, she has experience in Medicaid Targeted Case Management. Her love for engaging and serving others was catalyzed by working with children in Rehabilitative Behavioral Health Services. Jasma is excited about her new chapter with The Arc of South Carolina and will be serving the Lowcountry in Beaufort and Ridgeland.

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Brooke Bragg
Case Manager

Brooke@arcsc.org
Cell: 803-599-0301

 

Bio coming soon!

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Katie Lindeman
Case Manager

Katie@arcsc.org
Cell:

 

Bio coming soon!