I’ve actually done this twice! Waived the inspection, that is. They were both banked owned houses so the bank wouldn’t have fixed anything. My dad is incredibly well-versed in house flipping to the point that he could be a home inspector and he came with me to look at the houses and pointed out all the things I’d have to fix. So yes you can do it, but you need a lot of knowledge, and to be willing to make any repairs yourself.