Hey congrats that's quite the crew to take on. Do you know why they were dropped? It is amazing what happens when people feel the need to unload. I've always thought that with the newer more "beautiful or important" species coming into play over the last ten or so years there would be less of them into rescue situations. But you'd be surprised. I sure have been.
Congrats on your finds. I hope they all vet check out ok and find some great homes.
Rusty