Did you self manage or use a Property Management Company? 

Or does one need a special license / need to open a company?   

Some companies allow property owners to select tenants and set the screening criteria...We do not - our criteria does not bend. 

There's more low-hanging fruit here than I'll ever need, but hitting the ground running to pick it before land prices start reflecting the new higher values requires more capital than I have and I don't do debt.There are two main companies in the US who do the work of creating and selling eco-mitigation credits on a joint venture basis, separated by the Mississippi river.

What other company offers business income loss and up to 15k for dealing with squatters?

Find information on transfers is kids play for any of these companies. 

And when the company you're suing has shut down and apparently has no money, is it even worth the effort?

He's an investor himself and recently left his role as partner at the largest firm in the area to start his own company.

I personally recommend checking Columbus OH - lots of job growth, population growth, and major companies moving and developing here.

The seller responded that since the issue was repaired and he believes there is no ongoing problem, he did not think it needed to be disclosed.When I asked him to extend the inspection period so I could follow up with the repair company and conduct my own inspection, he declined.I disagree with this interpretation.