If daughter lived most of year at school & W-2s are from OH, but 1098s are NC, does she need to file in both states?

Which is her home state?

Yes, she should file as a North Carolina resident since she is just there for school purposes. She needs to also file a nonresident return for Ohio because of the W-2s. Here's the information on filing a nonresident return.

https://ttlc.intuit.com/replies/3302052