Releasing captive animals into the wild is illegal every place I know and always a bad idea, even if there weren't specific laws forbidding it.
If you take in animals as rescues, then you have to be prepared to deal with the commitment that comes along with the rescue. I applaud you for that, but now that they're bigger and difficult to house, you still have that obligation. There's nothing wrong with trying to rehome them with a responsible keeper....but don't use "they might end up in a bad place again" as an excuse to just toss them into a pond somewhere. It's up to YOU to find them a good home if you can't keep them anymore.
That is exactly what I was thinking but everyone keeps saying to release them in the wild. I have no problem holding on to them until finding the right home, just wanted to get everyones thoughts on this. Thanks!