However, Sandy, say you had $100k in your SDIRA.

Raw land usually won't have much of an inspection period, there isn't anything to inspect unless you want an analysis of soils or other aspects, not customary with residential type lots or small parcels. 

You do not have to share your Phase I findings with the seller, so if it winds up being relatively free of potential soil and ground water pollution or contamination, you may be able to get a below market deal. 

Loopnet, BP's marketplace, Linkedin, fb, banks, r.e. agents... guess it also depends on if you want hotels(flagged or not), office bldgs, mixed-used commercial and if it matters if its off-market, within U.S. soil or overseas.

If the seller has an existing site survey and soils report, these should help give you more info on the dirt (and save you some $ if you were to subdivide and/or develop further).Let's connect offline if you think it'll help--happy to chat anytime.

It is a very slow leak only when the soil is severely saturated with water. 

It's foundation, I've done 5k on one and 30k on another, exact same issue, it's all about code and soil.

If not, he stated that he could do a "sweep" for $250 that would identify if there is an underground tank with contaminated soil.

My agent told me the mortgage lender will do all the inspections (physical, phase I environmental, hazardous, soil, governmental approvals, title, survey, lien, etc.)  

Soil test required?