In my view, your attorney should have filed both petitions at the same center.
Let me confess I don't know the precise answer to your questions and I don't have personal experience in this regard. Here's what I think could happen (don't be scared by my words - I am not an attorney):
1. Your spouse's application might be transferred to the service center same as yours.
2. Did your attorney file your wife's application after you got the case number for your I-485? If not, they might issue an intent to deny or RFE to know about status of principal applicant's application.
3. Did your attorney include explanation for seprate addresses? If not, an RFE can be issued to you (or local transfer to your local service center) asking for explanation for separate addresses and additional proof for continuing marriage.
Again, these are my guesses only - take a legal opinion if possible (from another attorney).
Best wishes,
Jigesh