Hi Marissa71, I want to join the others in welcoming you here. While the person in my life with BPD isn't a child, I did remember we have a brief thread on
"Does BPD qualify as a Disability under social security?" over in our FAQ section. One post does mention
...In my work, I have seen folks get approved for mental illnesses, but it is a hard thing and they must have the backup of a doctor and a psychiatrist and oftentimes an attorney who specializes in getting people on disability.
Hope that helps as a starter;
kells76