Is there a state waiver program? I'm in arkansas our has a 10 year wait list but can help with services before she is accepted are you a legal guardian?

Can you tell us what services you have applied for? I am guessing you already contacted the regional center near you- is that where the waitlists are? https://health.maryland.gov/dda/pages/Regional%...
Another organization that might be able to help you find resources or connect you with a parent of an adult who can show you how to navigate the system is TACA- there is a Maryland TACA chapter and they have an event this Thursday for families of teens and adults - you can ask the chapter to connect you with a “mentor” https://tacanow.org/local-chapters/northeast/ma...