For the truly ambitious, the right site could then be further developed (outsourced) as a "green cemetery," which I refer to as "selling $500 post holes" at a few thousand per acre.

Get there in person and find the house in a sink hole or wrapped in meth lab tape or some other huge issue not seen online.#5 There used to be a lady named Sandra Edmonds I believe and she went by the name of TAx Lien Lady. 

Colors, quality of paint, how much prep needed, holes patches etc. 

-Have a Baby Gate/Guard around the pool, one with drilled holes.

Take the toilet out without damaging it, put a sanitary cover over waste hole, put toilet on shower floor.

they said around 90% of market value.I tried to get them to understand that this property needs a LOT of work, almost a full gut, some holes in walls (small) old carpet needs to be ripped up, i mean like the works on this thing, you can prob get away with touching up the kitchen since its real hardwood and the bathrooms as well but this prop needs at least 80k.Found out owner actually owes 140k on property, and zillow is zestimating it to be 127k.

Quote from @Bryan Christopher: Quote from @Russell Brazil: I'd simply ignore them. 

Also I would talk with those that install systems they usually have a good feel for areas and maybe will do an onsite inspection.for me if just vacant land and all i need to do is dig a 3 foot hole to get soil samples I am going to just do that. 

You must get a permit, drill holes in the bottom, demo the bondbeam down a foot or so, and then fill with compaction inspections along the way..... last time I checked it was about $10,000

A hole or two (check how many you need.) and some plastic pipe?