Thank you for your question. I look forward to working with you to provide you the information you are seeking for educational purposes only.
Unfortunately, discipline of students is an internal matter of the school. The recourse the student has is filing an appeal through the school's appeal process. If the housing director is the last step, then her decision would be final so using an attorney at this point if your son wants to stay in the dorm would be the best move on your part. The attorney can make the legal arguments regarding the contract of housing and how your son's conduct did not rise to the level of breaching the housing agreement if he was not involved in the major events with this girl and in fact was not even at school when many of them occurred according to what you are saying above.
If you use the attorney and lose, then you can still possibly be lined up for a breach of contract
suit against the school for breaching their housing contract with your son without good cause since he was not really involved in the harassing behavior with the exception of the minor part as you said.
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