I think she can train them. I have trained all of mine and I think I have done so successfully. I am even showing one of them now. I did send mine off to a friend of mine for WP training but she was well started before I sent her to him last year. I think if she takes it slow and asks questions she will be able to train them.
I started out with no help and trained my first horse by myself. I had read and watched videos and taken what they said and applied it to the best of my ability. Everyone has to start somewhere and I think as long as she knows when to ask questions she will get them trained. Not everyone has the money to send their horses off to a trainer. I know I don't.
Striving to always excel in everything I do. Whether I fail or not I always try to do better than last time.