ROTC Mom 2B,
The good news is that you have some time until ROTC starts, and the even better news, is as long as your daughter has healed completely and the surgeon or her physician releases her to full activities, there should be no reason why the waiver authority will not waive this.
If you haven't done so already, I would get copies of the operative report as well as all the follow up visits she has had with the physician and/or surgeon and forward those to DoDMERB. As soon as she is released to full activities by her physician, forward that to DoDMERB as well. DoDMERB will forward all information to the waiver authorities. At the time that you get the release to full activities note I would have your daughter write a letter explaining everything that happened in her words, and also what activities she is currently participating in and if she is having any discomfort. Attach that to the physicians visit note when you send that to DoDMERB.
If the worst happens and a waiver is not granted, the disqualification is only for 6 months, so in November she could write to DoDMERB and they would remove the disqualification.
I would have your daughter call the ROTC detachment commander at the scholl she is going to attend and let them know what is going on as well. They can sometimes (I'm not going to say everyone will do it) contact the waiver authority and try to put a little bit of a rush on the package.
If there is anything else I can help with please let me know.