I have some issues with 404´s on google web master tools.
Google is telling us this one is a 404 (is a real 404): http://www.apartmentratings.com/VA-Midlothian-Woodlake-Village-Waterpoint.html
And that url is linked from: http://www.apartmentratings.com/rate/VA-Midlothian-Crowne-at-Swift-Creek-Map.html
But that url, is not there, is not on the code, nothing.
I don´t know why google is saying we have a 404 there. I had to create some apache rules to avoid this, rewriting those urls with the "/rate" prefix.