What is true for most "normal" house sales doesn't really apply for bank foreclosure sales. Make sure you understand the caveats before making an offer on one. (You often have to use their P&S, and they may apply other conditions, etc.) Some people, like those who flip houses, may have enough experience and/or training to be able to do their own inspection. My father-in-law did a self-inspection on their current house, for example. There is no rule that you have to get an inspection, although I certainly wouldn't want to buy a house without one (or the unofficial equivalent.)