Its in the foundation , its in the earth , its soaked into the concrete .  

He's a great guy, down to earth, straight shooter and has access to tons of deals.

His attorney explained to him what I was talking about, because with these two single guys who owned it, who goes out partying every night (according to the agent at the contract signing) they're the last people on earth that know the useful life of anything, His lawyer explained to him I want something in the contract regarding it.So one of the guys said "if that's what he's talking about, write in everything in the house is beyond it's useful life, if that's what he wants, and would that be enough?".

Who on earth does one consult for advice on a commercial RE negotiation?  

In fact, I would argue that good wholesalers negotiate contracts with the standard seller paid items.Second, why on earth would you want to do everything yourself next time?

Not everyone will want to do it that way but every one that does would help.Perhaps an outside payment receipt/processor like Earth Class Mail?  

Looking forward to connecting and collaborating with you all on the best platform on planet earth.

If we are talking about the exterior load bearing wall in the first photo, then I would suspect (with the limited info I have on hand)  that you will need to demo out the section of concrete at the floor, demo the stucco in this area, excavate the earth to expose the footing and identify the problem underneath.

Do some screen shots of the lot using google earth pro and see if you can get a local drone photographer to make a video for it.

You really have to physically be there to have a real idea of the house and the neighborhoods. picture or google earth can't give this to you.