Unpermitted changes in an office condo

[Christina Jordan]

We are under contract to purchase an office suite and after reviewing the as built layout drawings the building department has on file, we see that there have been some significant changes done that don't appear to have been permitted.  We met with the building department and asked about whether getting a Certificate of Use would be an issue in light of not having updated architectural drawings and having unpermitted changes.  They indicated that as long as the category of us (professional office suite), isn't changing, that we would have no issues.  The broker thinks this is also a non-issue.

I think this is a problem and that we should ask the seller for a concession in the price or get an estimate of what it would take to rectify these paperwork issues.  

Am I wrong?  How should I go about this?

CJ