I would definitely have a Vet check her over thoroughly first. There may be a physical reason for her behavior that may preclude her from being a riding horse, but as someone else stated, if she has good bloodlines she might be a good prospect as a broodmare.
If there is no physical reason for this behavior, then it is mental, and it will take some work to cure her of bad habits. This kind of behavior is usually the result of rough handling and poor training early on. She has come to learn that bad behavior will result in being left alone.
I would suggest getting some professional help in training her all over again. Marty Robbins aka the Horse Whisperer, has an excellent book on dealing with problem horses.
Just my .02 worth.
If there is no physical reason for this behavior, then it is mental, and it will take some work to cure her of bad habits. This kind of behavior is usually the result of rough handling and poor training early on. She has come to learn that bad behavior will result in being left alone.
I would suggest getting some professional help in training her all over again. Marty Robbins aka the Horse Whisperer, has an excellent book on dealing with problem horses.
Just my .02 worth.