I'm not worried about the homeowner themselves, if they want to breath in asbestos, that's on them, I was more concerned with the disposal and the neighbors too.I have had asbestos siding removed several times here in CA and I will have to disagree with you on the danger levels of the asbestos as I have seen the test results first hand and they constituted a danger to anyone breathing it once airborne, which is why we are required to have it tested and if it comes back hot, it must be removed by a licensed professional with all the proper equipment and then properly disposed of.I agree that government agencies and their intervention are often overbearing and over necessary at times, but with hazardous materials, I am all for protecting our earth and the people and animals who live here. 

Did not need much, didn’t have many earthly possessions, but saved enough to give their children a small inheritance.

Thurston county does require a grading permit for some earth moving, but from the photos it would be easy to do grading a bit at a time so that no permit is required.https://www.co.thurston.wa.us/permitting/faq/faq-clearing.html"More than 7,000 square feet of a clearing activity (clearing and grubbing, conversion to lawn, conversion to pasture, etc.).More than 50 cubic yards of grading. 

I was also going to suggest the the hillside mentioned may be unstable, in which case $100k + to dig down to stable earth and pour cassions isn’t out of the question (with engineering, geotechnical, etc)

How on earth does any wholesaler lock up a contract with a seller and not know the house is no longer there!?

BUT companies will advertise a property as being maybe an A- when any local would tell you that area is a C.A good first step is just looking at the property and the neighborhood on Google Earth and seeing how the property looks, is the house unkempt, how appealing is the neighborhood, etc.

In the end business is booming so if you fall off the earth they don’t care.

Most of the time it is typical ground earth settlement at some point over the past 200 years that is not hazardous and impossible to reverse. 

@Shafi NossCheck these websites to become familiar with your target market:Best Sources For Data:BestPlaces.netCity-Data.comCensus.govFactfinder.census.govcensus.gov/programs-surveys/ahs.htmldata.census.govStateLocalGov.netSpotCrime.comWalkScore.comDeptofNumbers.comDataUSA.ioBea.gov (Bureau of Economic Analysis)Bls.gov (Bureau of Labor Statistics)Indeed.com (Jobs)NewGeography.comNeighborhoodScout.comCrimeReports.comFamilyWatchDog.usGeometrx.comSocialExplorer.comCostar.comColliers.comIrem.orgZillow.comGoogle Earth / Google Maps / Street View

This community has been great for bringing me back down to earth.