I'm not completely sure how that all works out but you gotta ask and get the answers before you sign. Sellers can be real, you know what's and realty agents aren't any better sometimes. I kept asking for the surveyors map of the house we are in now. At the closing I find the house sat right ON the property line. There was no footage AT ALL. We did buy the house but also bought the land next door that was for sale. It was a nightmare. The sellers lawyers yelled at me that "we're not trying to screw anyone." If I had it to do all over again I would have walked away. Not that I'm unhappy here. I think I aged 5 yrs over that one. MAKE SURE YOU GET A SURVEYORS MAP BEFORE THE CLOSING AND GET ALL THE ANSWERS TO YOUR QUESTIONS. MAKE A LIST OF WHAT YOU NEED TO KNOW. WRITE IT DOWN AND CROSS THEM OFF AS YOU GET THE ANSWERS. TRUST NO ONE. Oh and if there is a septic, GET AN INSPECTION DONE. In some cases they are to be certified. Ours is not big enough for the house, but since there is only two of us we press on. It does need work though.