Klbmom (thanks for taking lawyer advice out of post). Hiring a lawyer is both bad practical and legal advice. All offers of addmission are contingent upon the maintenance of an academic standard and the completion of a HS curriculum. You agree to it when you send in your acceptance of admissions response.
More importantly the OP hardly needs incremental stress while creating an adversarial relationship with her desired school. If litigation were to ensue how likely do you think OP would be of gaining addmission at a comparable school with 5 Cs on a transcript. Your advice is dangerous and reckless.
OP enjoy your gap year, find joy again with the confidence that your college of choice awaits you.