Maybe you could get another pullet so she has a friend. Sounds like she left a cheap motel and came to your Hotel Ritz. Lucky girl, maybe she should be Cinderella. Since her feet were like that she may have been neglected in other areas too. You might want to worm her and treat for mites. It's good that she has her own space because it's best to quarantine for about 30 days, to make sure she doesn't bring anything to your flock.