Some evidence of water damage in one spot so roof may need patching.

There are many areas with crumbling mortar, and areas where there is clear evidence of water penetration, but nothing too serious.

If the previous tenant simply has a mower that "looks" like yours, you may not have enough evidence to proceed.

(Knowing full well they have to have some type of evidence that husband or workers stole their stuff)  In talking with the Police it usually is a boyfriend, a neighbor, a kid their watching, that takes their stuff, as a rule. 

You always have to validate employment from a 3rd party (CPA)Evidence of liquidation is always required if the funds are held in equities or retirement accounts.Income stability is a major factor in determining a borrowers credit worthiness.

When they do pierce it before trial, they will hold a hearing or hearings where evidence is presented through sworn witnesses.You aren't going to get a veil pierced just because you found a connection between individual A and Corporation C during discovery.

What do those businesses provide to them as evidence of their success?

Find previous owner and ask to execute the deed or take to court (based on evidence the current owner made good on the contract?)

The fact that any person engages in or performs or offers to engage in or perform any of the practices, acts, or operations set forth in R.S. 37:1431(7) is prima facie evidence that such person is engaged in the illegal practice of real estate.D.

Then you go to the follow up meeting with evidence of everything being fixed.