What is the ruling on remaining with a wife who has been divorced five times and was taken back based on a fatwa due to intense dislike, and are these revocations Islamically valid?

If the divorce was issued by you while you were fully aware of what you were saying, then it is effective, and your wife has become irrevocably separated from you with the first three divorces (talaqat). She is not permissible for you until she marries another man and he consummates the marriage with her. If he then divorces her or dies, it is permissible for you to marry her again; this is based on the Almighty's saying: ﴿And if he has divorced her [for the third time], then she is not lawful to him afterward until she marries another husband﴾ [Al-Baqarah: 230]. However, if the divorce was issued in a state of extreme anger where you were not aware of what you were saying, then this divorce is not binding. It is recommended to refer to the Sharia courts.