Fire damage can mean the structure has been compromised.

And then you can increase the security deposit in case there were to be damage to the home if your open to compromising. 

That will trigger a compromise and will get you into a property you don't want.

I think it's a good compromise

One wholesaler sent me a deal (that I ended up buying) where the foundation was on piers and roughly 40% of the piers under the house were severely compromised.

The linings are not just linings, but hardened to better than the original pipes and some on the technology used pipe bursting so the lining expanded and burst the original pipe, making a larger pipe area for the flow, especially if the flow in the original pipe was compromised.

So long as the buy price accounts for this work or your ARV and cashflow analysis support the overall rehab with the foundation work, you'll come out ahead every time.That said, if you come across a slab on grade home that has greater than 6" of deflection from one side of the house to the other you absolutely need to call a plumber to TV the sanitary mainline to make sure it hasn't been compromised.

If at any point in the property’s history, the title is compromised by a forged or fraudulent deed, a previously undisclosed or unknown heirs with adverse claims on the property, or a simple mistake in the public record, any and all subsequent transfers can be null and void.

HVAC units can be compromised. 

If the main stack doesn't run up the wall right behind the toilet (but be warned, they often do) You could probably slide the toilet down in the same (joist) bay, rotate it and put it next to the vanity (and have the tub, vanity, toilet layout) without compromising any joists and then just move the door to the bathroom over to where the back of the toilet is now.