He has a private SLP that we LOVE (that is not too strong of a word - his SLP was a huge help when we first started navigating the world of having a delayed child, and his SLP always believed in him even when others told us very discouraging things).
The school offered to give him a speech assessment, but I didn't think it was worthwhile as I know he would pass the basic assessments that they use. We haven't checked in with his SLP for a year and could definitely ask advice.
I appreciate your help! I always wonder what caused such substantial issues.