I think we got lucky with this house we bought; there don’t seem to be any major structural issues or water damage undetected in the initial inspection. A lot of houses from the 1970s and 1980s do have those sort of problems that the sellers attempt to hide.
The main problem seems to be electrical oddness. One of the circuits in the garage has gone out and we’ve yet to call an electrician to repair it. (No, it’s not a breaker tripped and needing to be reset.) Still, the electrical systems here are more reliable than our prior rental where it was so unstable that our TV would blink off routinely in the middle of watching shows and movies.
So we’re happy so far. Have also seen no demons or malevolent ghosts. Yet.