I copied out all your really good suggestions. In the field (appox 2 acres) where she spends the time loose we are putting up a 12 x 12 area and will offer apples or sweet feed to get her to come in. From there we will be able to put the halter back on and walk her to the corral. If this works, it will be an easy fix. Then we can try the training method for long term. I think she has been able to run the show with previous owner.

Thanks for your time. I'm impressed!