About Us
Mary Jo Siebert, MS
Mary Jo Siebert, MS
Mary Jo Siebert, MS
President of Educational Advocacy and Training
Mary Jo Siebert, a longtime Educational Law consultant with a background in psychology and over 40 years of experience, is entering an exciting new chapter in her work to support individuals and family caregivers. Throughout her career, she’s been dedicated to helping children, teens, and adu
President of Educational Advocacy and Training
Mary Jo Siebert, a longtime Educational Law consultant with a background in psychology and over 40 years of experience, is entering an exciting new chapter in her work to support individuals and family caregivers. Throughout her career, she’s been dedicated to helping children, teens, and adults with autism, cerebral palsy, ADHD, and rare neurological disorders get the care and support they need.
Mary Jo’s deep expertise comes from her years at the Kennedy Krieger Institute and the impactful work she’s done through ASK and ACES, LLC, the independent practice she launched in 2003. Now, she’s building on that foundation to expand access to disability care and services across Maryland, Northern Virginia, Southern Pennsylvania, and Delaware—making it easier for families to find the help they need, when they need it.
Joyce McGuire
Mary Jo Siebert, MS
Mary Jo Siebert, MS
Executive Assistant
Joyce McGuire joined Ask & Aces as an Intake Coordinator in September 2023 and quickly advanced to the role of Executive Assistant. She brings a wealth of experience from her previous positions as an Administrative Assistant across a variety of industries.
A proud resident of Baltimore County, MD, Joyce is a devoted
Executive Assistant
Joyce McGuire joined Ask & Aces as an Intake Coordinator in September 2023 and quickly advanced to the role of Executive Assistant. She brings a wealth of experience from her previous positions as an Administrative Assistant across a variety of industries.
A proud resident of Baltimore County, MD, Joyce is a devoted mother of three and grandmother of six. Outside the office, she enjoys spending quality time with her family, connecting with others, relaxing at the beach, and diving into DIY projects.
Joyce is enthusiastic about being part of the Ask & Aces team and is especially passionate about supporting children in need of advocacy and services.