Hi Susan. I hope things are doing better. Hopefully your educational advocate is chasing down a few options. Beyond just reaching out to the dean or division head, sometimes it's wise to make a big 'ol mess and involve the credentialing body for the school in addition to whatever is happening with the program. The credentialing body for the school I work has a complaint process demarcated on their website, for example.
The bigger the mess you make, the more people get to see the iniquity of the situation. Involving other students from the cohort (outside formal processes) might be a good idea as well.
There are also individual credentialing bodies that the professor may partake in as well.
If the professor wants a show and wants a carnival, make that carnival a little bigger. If the professor isn't acting equitable, isn't working with your daughter, and is acting exclusionary, then the more people that see that behavior the better. The misbehavior by the professor will polarize the learning community and create natural allies for your daughter on and off campus.
I'm not specifically an educational advocate, but I have decades of experience as an advocate for individuals living with disabilities including postsecondary education. I'm happy to help if you get stuck.