All you would have to fight about in divorce is the change in value of the properties over the period of the marriage. Hopefully values have not changed that much in 2 months. Names on deeds can be used as indication of intent as to how the property should be divided. But, legally, it is not critical who is on which deed. As a married couple, you are seen as a single financial entity. I say don't worry about it.

You should do some thinking about taxes. His is no longer a primary residence so he'll lose capital gains exclusion in 3 years. He might want to talk to a tax duded and possibly consider selling it before then.