Horrible Night!!!

I am really sorry to hear about this whole situation.

Any dog at any time can easily turn on each other or their handler unfortunately. It can be due to the pack order, redirected aggression (which sounds like why she went after your wife; easiest way to explain it is they go into a 'zone' and don't necessarily realize who they are attacking once in it), flooding, alphas etc... I am just speaking from personal experience and dog training.

If you are attempting to rehome or not, I would absolutely recommend keeping leashes on your girls at ALL times for atleast 6 weeks. Also keep them seperated if only one of you are home. It takes canines about 1 1/2 months to straighten out their issues with eachother and settle the pack again (usually).

I am sorry this has happened (and sorry I didn't see this thread sooner). I had 4 dogs before my house burned down. The oldest dog who is in my gallery and my favorite was the alpha after me. My wife made the mistakes of getting me to handle him whenever he gave a problem. He always listened to me. By her not showing dominance over him (and showing fear around him)made him feel like he was above her. He passed from a heart attack after I got him out of the house the day of the fire. The other three lived but were constantly fighting in what I beleive was to try to establish dominance. My dog that passed away ALWAYS kept the others in check. Without him and the stress of all that had happened they all lost their position in the pack. When I first came home they were even growling at me and jumping up on there kennels barking at me. I had to slowly move my way back up to the leader of the pack. I didn't actually go near any of them for a week (I couldn't). I stayed outside of their kennels talking to them (while they were barking and growling at me) slowly establishing my dominance again. I established it over time but they never established where they each stood in the pack after me. The nicest one the rottie and probably the last in the social oreder got adopted back to the breeder. The other two had to be put down after much thought. They were ABSOLUTELY mean to other dogs and people (they were not like this before the house fire). No way of any chance to adopt them out. One of the reasons they were put down was because of my youngest son. I was pretty sure I could keep him safe from the dogs (and my wife for that matter, they eventually became to much for her. They would let her go near them and love her but wouldn't listen to her). The fact that I was pretty sure was the determining factor. I needed to be 100% sure. My family means the world to me and protecting them is my job. I could never live with myself if something happened to my son or wife because of me. And it would have been my fault because I had final say in the outcome.
Anyways, as a friend you and your family are always in my prayers but when things like this happen I will most certainly take time out to say a special one for you. I hope snow pulls through with a remarkable recovery and that your family is doing okay after all of this.