There is a process for migrating your Google+ Business Page With Google+ Local and verifying your Google Place page as a Google+ Local page.
It seems like part of that is not available to Google Apps users. Which is funny to me, because I'd assume a nice percentage of folks who need to manage Google Places / Google+ Local are Google Apps users. They are business owners.
That being said, Jade Wang from Google said Google is working on giving Google Apps users access to verify their Google+ Local pages.
She wrote in a Google Business Help thread:
New update -- the team is working on making verified pages available for Google Apps users. I'll come back to announce this is available. If you don't want to wait, you can transfer ownership to a standard Google account and verify using that account as noted previously.
How soon? I'd guess a year or two. (sarcasm maybe)
Forum discussion at Google Business Help.