RERs are generally invited by folks from Google who see great mapping coming from a user. Not quite sure of any defined criteria, it just...happens if it happens.
Now, this is not legal advice at all. I'm far from a lawyer. But one tricky thing about edits is always the copyright status of third-party resources cited in pending edits. I guess there might be some benefit to being officially from the university, as I guess there might be some kind of status allowing someone there to authorize Google to use the university's data like this. I don't know - but if there are green lights all around to use it, using some kind of official university map might be useful. Or, I wonder if there's a more direct way to contact them, because I've seen some universities that have features mapped in ways that I don't think most mappers have access to.
Anyway, that aside, you might want to enter the Review Edits Requests forum, create a thread that clearly states the location/state in its title, and post links to GMM edits to approve. You'll get some help there.