Sounds like you have a plan going. It is very obvious through all your posts that you love your dd. I suspect that you and dh need to get on the same page. While style differences are okay, it sounds like it is more than just style, but a huge chasm of differences between what each of you see as allowable behavior and appropriate consequences. Sometimes you have to negotiate the issues and go with what is very important to one, but less so the other. It is not fair to the parents for one to always be the disciplinarian, and the other the "fun" parent; you need to back each other up, at least in front of the child. Consistencey is really important.
It sounds like the school is not dealing with the other child that is a bully, and your dd is folowing his example. And maybe was bullied by him, and since he was not given adequate consequences, she thinks that she will not have to pay them, either. Perhaps a change in classrooms, so that she is with different children and a teacher who has a more structured classroom, leaving little time or opportunity for bullying behavior?