Meet the Staff

Meet Our Staff

Margie@arcsc.org 

Office: 803-748-5020 ext 5#

Margie Williamson

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.

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.

DeAndrea McMullen

DeAndrea@arcsc.org 

Cell: 803-529-5308

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 means a lot to her. 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.  

Danni Bloom

Danni@arcsc.org 

Cell: 803-719-0137

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Rachel Harry, Waiver Enrollment Coordinator, 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.

Rachel Harry

Rachel@arcsc.org 

Office: 803-748-5020 ext 2#

Cell: 803-665-0155

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 Covey

Joe@arcsc.org 

Cell: 843-252-2579

Derek@arcsc.org 

Office: 803-748-5020 ext 6#

Cell: 803-431-5405

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 Smoot
Derek Smoot

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 Little

 

 

 

Ashleigh@arcsc.org 

Cell: 864-309-9172

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 her Bachelor's Degree in Business Administration. 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 Ratchford

Labresha@arcsc.org 

Cell: 864-559-0632

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 Rice

McCall@arcsc.org 

Cell: 843-252-1015

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 Tanczos 

Alyssa@arcsc.org 

Cell: 803-243-0542

Olivia Richardson, Case Manager, is originally from Rock Hill, South Carolina but has relocated to Beaufort. She graduated in May of 2019 from the University of South Carolina (Beaufort) with a Bachelor of Science Degree in Human Services. Before coming to The Arc of South Carolina in August of 2019, Olivia worked as a Camp Counselor for four years at a summer camp for individuals of all ages with disabilities. She shares a passion for advocacy and is a firm believer that a strong foundation in life promises success. Olivia is excited to share her passion and become a part of The Arc family.

Olivia Richardson

Olivia@arcsc.org 

Cell: 843-301-1580

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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 Clary

Dyan@arcsc.org

Cell: 864-341-5424

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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 Antonoff

Bryan@arcsc.org 

Cell: 843-301-4916

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Mikayla White, Case Manager, joined the Arc of South Carolina in September of 2020. Mikayla received a Bachelor of Science Degree in Human Development and Family Studies from the University of Vermont. Originally from Vermont, Mikayla and her husband moved to Myrtle Beach, South Carolina in 2018. She has a passion for finding creative solutions to help support families and is excited to work with individuals across the life span. 

Mikayla White

Mikayla@arcsc.org 

Cell: 843-940-0994

Hayden Redding, Case Manager, is originally from the northside of Greenville, South Carolina, but relocated to Anderson County. Hayden received her Bachelor's Degree in Sociology and a double-minor in Child & Family Studies and Psychology at Lander University. Hayden has a passion for helping individuals and families with special needs. She previously worked as an Early Interventionist with United Ministries, and volunteered with the Burton Center. These experiences provided her with many resources that will be helpful as a Case Manager at The Arc of South Carolina.

Hayden Redding 

Hayden@arcsc.org 

Cell: 864-202-8655

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 Otero

Takicia@arcsc.org

Cell: 803-665-0431

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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 Weiser

Darcie@arcsc.org 

Cell: 803-665-0196

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 Rivera

Abby@arcsc.org 

Cell: 803-665-0504

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 Hughes

Jasmaine@arcsc.org 

Cell: 864-772-9125

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Ally Rutledge, Case Manager, is originally from Rock Hill, South Carolina, but now lives in Charleston. She graduated in May of 2021 from the College of Charleston with a Bachelor of Science Degree in Exercise Science and a minor in Spanish. Before coming to The Arc of South Carolina in June of 2021, Ally worked as a camp counselor and caregiver for individuals with intellectual and related disabilities. Ally's enthusiasm for providing advocacy and support for family members and friends started at a young age. She is thrilled to be part of The Arc of South Carolina family so she can assist individuals with meeting their goals. 

Ally Rutledge

Ally@arcsc.org 

Cell: 843-304-0697

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@arcsc.org 

Cell: 864-341-6169

Lauren Ammermann
Lauren Ammermann

Bio coming soon

Brianna Floyd

Brianna@arcsc.org 

Cell: 803-243-1139

Bio coming soon

Elizabeth Fields

Elizabeth@arcsc.org 

Cell: 864-794-0604

Jada Howard

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.

Mackenzie Colegrove

Mackenzie@arcsc.org 

Cell: 803-665-0435

Mackenzie Colegrove, Case Manager, recently moved to Columbia, South Carolina from Indiana. She attended Indiana State University and received a Degree in Criminal Justice in 2020. She is very excited to work with this community and grow with the team at The Arc of South Carolina. 

Bio coming soon

Amy Siders

Amy@arcsc.org 

Cell:

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 Constantino

Paige@arcsc.org 

Cell: 864-205-8982

Bio coming soon

Lashanda Williams

Bio coming soon

Teirra Felder

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 Hellthaler

Casey@arcsc.org 

Cell: 803-967-8610

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 Hilligus