I am doing alot of owner finance for my clients if they are upside down or you can do a shortsale you dont have to be late on your payments to qualify i would be happy to explain allof your options so you can make a decision on what is a good fit for you www.lisarichardson.net
Did it take much space from your yard? If you are in Waterview and the lot is not very deep that could be a detriment to the value of the home. Would the current HVAC system support this room as well or would it need its own?
I'll be happy to make a quick visit and advise you on the best use of the room and how to market it properly.