The Arc of Loudoun Management Team

Lisa Kimball, Chief Executive Officer

A results-driven Technology executive with extensive experience in operations, governance and financial management, Ms. Kimball comes to The Arc with a wealth of knowledge and expertise in running both for-profit and non-profit business. She currently serves as Chairperson for the Commonwealth of Virginia’s Identity Management Standards Advisory Council (IMSAC), as a Board Member of Loudoun Volunteer Caregivers (LVC), as an Advisory Board Member of the Loudoun County Medical Reserve Corps, and as Immediate Past-Chair for the Loudoun County Chamber of Commerce. Having spent her career in Technology, for twelve years prior to joining The Arc of Loudoun, Ms. Kimball served as Vice President, Identity Management Solutions at Telos Corporation. Ms. Kimball has comprehensive knowledge of strategic planning, a vast background in legislative advocacy, and great success in designing and achieving organizational development and growth programs. Ms. Kimball joined The Arc of Loudoun in August 2018, but has volunteered with The Arc since she was child. She is honored to work for an organization that has grown into an amazing resource for people with special needs and their families.

YaTonya Abdullah, Chief Operations Officer

YaTonya holds a Bachelor’s degree in Special Education from Hampton University.  She has taught in self-contained classrooms for elementary-age students with various disabilities, including autism.  Upon relocating to NJ, she began working with the preschool population, as a liaison between school, families and school districts coordinating special education services for students with disabilities.  She essentially obtained her Master’s degree from New Jersey City University in Jersey City, NJ.  She came to The Aurora School, combining her experiences in Special Education and service coordination for children with disabilities to fulfill the position of Program Support Coordinator.  She later took on additional duties as Executive Administrative Assistant, which led to her transition to the position of Chief Operations Officer, working in conjunction with all programs of The Arc of Loudoun.  YaTonya stepped in as Interim Executive Director for The Arc of Loudoun during the transition of leadership.

Denise Daffron, Chief Development Officer

Ms. Daffron has championed people with disabilities since she was in grade school and is passionate about fundraising and marketing for causes that support families raising children with special needs. Originally from Texas and after graduating from Hardin-Simmons University with a BA in Public Relations, she began her career in promotion and advertising agencies working with such clients as Snapple, Chick-Fil-A, and Labatt USA. Her career in nonprofits began when she joined Special Olympics International, managing their national cause marketing partners and campaigns for Procter & Gamble, Kodak, M&Ms, and Coca-Cola. She continued her career in nonprofits where she directed corporate partnerships and strategic events for the American Red Cross of the National Capital Region, the American Heart Association of the Greater Washington Region, and most recently, served as Vice President of Advancement for Jill’s House, a respite center for children with special needs. Ms. Daffron has generated over $40 million for nonprofits and their missions.  She also owns her own event audio production company and serves as a technical production volunteer at her church. She joined The Arc of Loudoun in July of 2017 and is honored to be leading the charge of generating the resources needed to help provide a lifetime of opportunities for people with disabilities.

Eileen SEileen Shaffer, Administrative Director of ALLY Advocacy Center

Ms. Shaffer received her undergraduate degree in Sociology from Mary Washington College where she was awarded the Jean Donovan Award to promote human rights.  She received her Master’s Degree in Social Work with a Specialization in Health from Virginia Commonwealth University. She has worked in group homes with adults with developmental and intellectual disabilities.  As the Resident Services Director of a large Continuing Care Retirement Community in North Carolina, she worked with individuals across the spectrum from independent adults, assisted living, skilled nursing, adult day care and dementia. Ms. Shaffer has experience providing social work in both hospital and home care settings. She has also been trained as a Mediator.  After returning to Virginia, she worked as a Care Manager in Loudoun and Fairfax Counties with older adults as well as individuals with developmental disabilities. She has experience coordinating care and services for her clients with community and healthcare resources. While working in care management, Ms. Shaffer began volunteering at ALLY and was later hired as the Advocacy Coordinator.  As the Administrative Director of ALLY Advocacy Center, she provides resources and referrals to families and clients; empowers families to advocate for their children in the IEP process; works with self-advocates and supports a variety of educational outreach programs to educate families and caregivers. ALLY Advocacy Center fills an unmet need in Loudoun County and Ms. Shaffer is able to walk families through the process of supporting a child with a disability and understanding the array of resources available and how to access them. Ms. Shaffer has been an active volunteer in Loudoun County, initiating volunteer programs with Backpack Buddies, Girl Scouts and the Loudoun Homeless Shelter.

Mandy Butler, Administrative Director of Open Door Learning Center

Mandy Butler has helped teach children with and without disabilities for over a dozen years and received her Child Development Associate (CDA) Credential for Preschools.  In 2000, Ms. Mandy started working at Grafton School as an Academic Specialist implementing educational programs and behavior plans.  In 2006, with extensive training in ABA (such as verbal behavior), she started working as an ABA Therapist at the Aurora School, working 1:1 with students with disabilities and developmental delays.  Ms. Mandy held the position of Lead Teacher at ODLC since we opened in 2010 and is excited to now be a part of the Support Team providing classroom and administrative support.

 Janelle McDonald, Director, Aurora Behavior Clinic

Janelle joins the Aurora Behavior Clinic with over 10 years of experience providing Applied Behavior Analysis (ABA) therapy.  She began her career by providing services to a wide range of clients after working privately with a client diagnosed with autism while attending college.  Through her work, Janelle gleaned experience providing early-intervention, home and clinic-based therapy, and parent/caregiver training. Ms. McDonald received her M.A. in Clinical Psychology from The American University and completed her BCBA course sequence from Florida Institute of Technology.  She is passionate about providing the best quality services to clients as well as emphasizing the importance of parent/caregiver training so that skills learned during sessions are generalized to outside of the clinic as well.

Amy Metaxa, Director of Special Education, Administrative Director of The Aurora School

Ms. Metaxa began her career as a Special Education Teacher in 2005 in Somers, Wisconsin as a teacher for students with severe cognitive disabilities. In 2012, she moved to Northern Virginia and continued her career with Prince William County Schools as a Special Education Teacher for students with learning disabilities and autism.  Amy graduated with a Bachelor’s degree in Psychology from The University of Wisconsin-Parkside. She has a master’s degree in Special Education from the Cardinal Stritch University-College of Education and Leadership, graduating Magna Cum Laude. During her time as an educator Ms. Metaxa has earned the designation of Highly Qualified Educator, served on numerous committees at the district and local levels, mentored new teachers, opened a new school, functioned as the Team Lead for a Special Education Department and has been the recipient of numerous accolades based on student performance. Her philosophy has always been that all students can learn and find success.

Helen Parker, Clinical Director of Ability Fitness Center

Ms. Parker graduated from Columbia University in 1998 with a master’s degree in Physical Therapy. She received her doctorate in Physical Therapy from Marymount University in 2003. She completed her NeuroDevelopmental Training (NDT) in 2001 and has been a board-certified Neuro Clinical specialist (NCS) since 2006. Ms. Parker is a Certified Clinical Instructor Affiliate (CCCE/CI) through the American Physical Therapy Association and has been an instructor at Mercy College Physical Therapist Assistant Program. She has spent her career as a physical therapist focusing on people with neurological conditions working in acute-care, inpatient rehabilitation and outpatient facilities. Ms. Parker has been actively involved with the Parkinson Foundation of the National Capital Area (PFNCA), with the Stroke Comeback Center (SCC), and with her stroke support group “The Survivors.”



Matt SMatt Smith
, Director of Facilities

Mr. Smith joined The Arc of Loudoun team in 2010 as a volunteer on the very first haunted house fundraiser. Prior to joining the team as the Director of Facilities in 2011, Mr. Smith owned his own home improvement business and worked as a general contractor. In addition to his contracting experience, he started his professional career as a mechanic. Mr. Smith keeps The Arc of Loudoun buildings and grounds looking their best, and supervises new construction projects. Mr. Smith also continues what he started as a volunteer and is now the creative genius behind Shocktober. However, Mr. Smith’s favorite part of his job is working with the employees with disabilities at The Arc. He has learned so much about people with disabilities and the challenges they face in life since joining The Arc. Mr. Smith works hard in supervising some of our employees with disabilities, so that they enjoy their jobs. He hopes coming to work is the best part of their day.