I want to start small by providing good wholesaling deals that are both honest and fair to everybody as i feel that is the foundation of good business.

Are there noticeable large cracks in the foundation or other areas?

Ideally, just an hour or so.Document remaining oil and/or propane in tanks so that the buyer isn't over charged for them.Document anything amiss during the walk-through.Coordinate a holdback of funds sufficient to remedy whatever is found at the walk-through.Attend the closing, ready to answer questions and extinguish any last second issues.

For example, the housing has an issue that will cost more to fix than the house and property is worth, eg. an old stone foundation that has slipped. 

I don't want to see cracks in the walls in 5 years because of foundation issues.

The problem is not having a foundation, septic, electricity or well to hook it up to.

I often see disclaimers of a home not lendable, due to a lack of a foundation for a house.

You really should be working with a CPA to advise you on entity creation (or not) and tax efficiency so you have the right foundation going forward.

The building needs pretty much everything, including foundation repair, new roof, structural repair, new plumbing, heating, electrical, etc.

Otherwise water will get under the deck and at your foundation.