I don't think there is any way to get her to move without waiting for her to ask to move out. And no one can take her until she does that. I've had this happen to me and I would say that as an avid plot resetter, if you don't have 10 villagers and pwps in the most important spots you don't want them moving into, start your day with a new character and repeat it 2 times to make sure there are no move ins. If there is, then put them somewhere out of the way until you can get rid of them.
Is she in boxes? If she is I will take her from you in maybe 20 minutes if you can wait.