i may be being really silly here, but if you brought it and things did start going wrong, would your home insurance not pay for it? i would defo follow chris's advice and find out what the problems are, and more importantly how much it will cost to fix. I brought a place that was about to fall down at such a bargain price, and i've now increased the value by about 50k by just spending 20k doing the structural work. I did a lot of research into it though and i knew what i was getting myself into, i would strongly suggest you do the same