At the end of the day, if you get the house, you WILL be dealing with the jurisdictional building department if you go ahead with getting any unpermitted work properly permitted. Make a list of what you think the unpermitted features are, call the building department and describe your situation with them WITHOUT disclosing our name or the property address. They have gone through this many times I'm sure and are typically able to give you some guiadance as to what to expect inspection-wise, the possiblity of back taxes, and any fees that might be anticipated. Please let us know what happens!
