I agree with much of the above. CMU is a definite fit school in terms of the culture and vibe. She should definitely apply to reach schools even with the 3.0. However, if she is certain she wants to transfer, she will need to have some match schools and at least one affordable safety on the list. If it’s in the budget, working with an independent college counselor who is experienced in transfer admissions could make sense too.
Where else was she accepted to last year? Those schools may be a good starting point for transfer consideration.