@JLeslie No I would not. There would be many other things I would be more worried about because regrading the exterior is easy and in the case it is not practical to do so you can install French Drains next to the house around the perimeter that will then drain to water to a low spot somewhere on the property.
A foundation that is suffering settling would be a deal breaker for me, overall visible neglect would be a deal breaker for me as it will show a lack of care by the previous owner unless you are looking for a fixer upper. Most anything else can be negotiated after a qualified inspection except wood boring insect infestations….
I have to share my house horror story. We found the house of our dreams the one we now live in and it had been vacant for a year and upon inspection the inspector found dead Powder Post beetles pretty much all over all over the lower level. Only termites are more destructive but termites are relatively easy to eradicate Powder Posts are not and the entire house would have to be tented and fumigated to get rid of them. Plus there is no way to fully determine the extent of damage they cause not guarantee that they wouldn’t come back. Two other inspections by professional exterminators confirmed what we feared. Our Realtor was not ready to surrender the fight and she found an exterminator who came in the door. took out a magnifying glass as these bugger are as small as an ant…she looked up and around and made a beeline straight for the lazy Susan in the kitchen and there was a box of Fruit Loops tipped over behind the Lazy Susan just teeming with these bugs. She announced these were in fact Drug Store Beetles that are completely harmless.