Which begs the question: how DA is this dog? How many fights have they had? They are both females right? How does she act with other dogs? With males? What have the fights been over (food, attention, intense situation, etc)? What does your management set-up look like (feeding, sleeping, toys, separation)?
I don't think it's really fair to label a dog as DA if we don't really know the background, it could just be that she doesn't get on well with females.
Please don't think I'm trying to pick on you, but these things are important to know before we label a dog. And possibly can help find a good foster/rescue/adopter.
Colorado Pit Bull Rescue also will do courtesy listing.
I have a great application and a list of questions to ask potential adopters if you decide to try and place her yourself. You can also do private listings on Pit Bull Rescue Central (
http://www.pbrc.net/ )I believe.
If you need guidance I'd be happy to help, just pm me.