Take it to the next level. Enrole her ass in boot camp. If you cant control her short of abuse, put her unruely ass in a boot camp. Trust me. Your significant other might not like it, but its the best thing.
If you have gone to counseling and tried everything else besides duct taping her ass and leaving her in a corner, send her to boot camp.
SEND HER TO BOOT CAMP!
If that doesnt do it...
SEND HER AGAIN!
You, and her mother, have to be prepared though. She will say they are beating her and torturing her. she will say
ANYTHING to get out of there. Tell her she should have thought about that before it came to this point....
AND SEND HER ASS AGAIN!!!
Oh yes, she will learn.... You will see. You cant beat her.... but
IF its necessary... they can.
It may sound cruel but if she is that bad, then she deserves an old fashioned ass kicking.
I talked a friend of mine and his new chic and had them send her daughter to boot camp because she was the same way.... now she is practically an angel when they ask her to do something.
Boot camp isnt all about beating them until they listen though, thats probably only 5% of it. They teach them discipline, self respect and, above all, respect for others. If you know anyone in the military, ask them how boot camp changed them.
At the very least, she will realize how easy she has it with you and her mother.
Im sorry, but Im tired of the ADD excuse... that . I had the same problems when I was a kid and didnt have to take any medication. I just got my ass beat the out of me. I turned out all right.
I had a counselor as well. My parents where told I would be dead by 18 because I was so crazy. Im 29 now. I have 2 vehicles of my own and a project vehicle with a friend of mine, not to mention my own house thats paid off. Im not singling you out but parents as a whole need to stop being such ing pussies, its a misconception that cops are going to take you in for spanking your kid. For the most part, if its warranted, cops will agree with the parents.
(I keep adding to this post

)
If anything, if the kid threatens to call in on child abuse, you go ahead and call the police (make sure its the non-emergency number) and call the kids bluff, ask to speak to an officer and calmly explain what happened and then hand the phone to your kid and have them explain to the officer why they got spanked. They will break down and wont talk, and if they do, the cop will take your side. Guaranteed.