Right now the people in your building are working from different ideas about what is happening. None of it is for lack of caring. A counselor reads it as manipulation. The front office makes a late arrival feel like trouble without meaning to. A teacher keeps sending work home that the student cannot touch yet. And the assistant principal, whose job is attendance, uses the language of consequences, because that is the job. Your social worker can be doing everything right and have it undone by the next conversation that family has with the school.
That is the first thing that changes once your building is working from the same framework, and it is mostly a reframe rather than a new skill set. Once everyone understands what they are actually looking at, the responses stop contradicting each other. People are more patient because they see it differently, not because they were told to be. It becomes clear who leads with the family, and which adult the student is building trust with. Over the following months that turns into how your building handles this, instead of four people each doing their best on their own.