Couple things.....
1. You need to first find out if she still qualifies as your dependent, even if you don't claim her. You might not have a choice. Even if you don't claim her, she might have to file her return and check the box that says she can be claimed on someone else's return. How old is she? Is she a full time college student?
2. What exactly happened? In what order? Were both the returns efiled and both Accepted? Or did 1 return reject? Yours or hers? You only need to amend the return that was filed. Not the one that rejected. Why do you need to amend both? Did she try to claim herself and it was rejected?
