Folks are going to ask how many rats we're talking about.

Personally, I've had an acquaintance that lived in Ohio, he was able to keep a few of his rats on campus. I don't remember what university he went to though. But you could at least ask the university if they'd allow it.

Craig's list would be a good place to start selling them if you want. You can at least ask the people what they're going to do with them rather than handing them off to a local pet shop that might euthanize them.