Our Daughter who is also going into Jr yr is currently in residential placement.
Our IEP team did not recommend it; however her admitting psych, social worker, CMO and parents / child did. Believe me it was our last resort, but the only option left after 5 hospitalizations in 14 months, PHP, IOP, DBT,

home therapist and a therapeutic HS. We believe (daughter included) RTC SAVED HER LIFE!
The school districts are responsible for the education component as well as transportation to/from. D had already been enrolled in therapeutic high school. Once she was placed out of home, it was just a matter of our district aligning the transportation.
Dealing with school, lawyers, drs, etc can be confusing, but there are many of us who have walked the walk... .let us know if we can help.