There might be good reasons though, to want to register her car. I don’t know how insurance rates will compare. And, (nothing to do with WV) an out-of-state license plate can lead to extra scrutiny at times, even completely innocent and subconscious.
Speaking for my own neighborhood - I can’t help but notice an “out of place” car, no matter how hard I consciously try not to descriminate.
Finally - there might be an issue with vehicle inspection. It’s a bridge my daughter and I will cross next year, when her car’s inspection sticker will expire - more than a day’s drive away from “our” inspection stations…