Even though your dd is doing well with organization, I would make sure the 504 has organizational goals in it because the transition to middle school and multiple teachers is tough for everyone, let alone someone with ADHD. I would try to get your dd to have a planner in which she writes homework, tests and other assignments, (maybe your school does this already) and have it checked by the teacher (and you) each day, at least until you know your dd is keeping up with everything. My grade skipped son doesn't have ADHD, but he hasn't ever had to concentrate on homework before, so that was his biggest issue in middle school.