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

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

Good luck, you are a busy man with school, family and baseball.Likely your best bet is house hacking (if your partner and child are willing to share housing). 

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

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

Many rural water companies are near capacity.

We had it for our kids while going to school .

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.

After high school, I pursued a career in the military, where I proudly served for seven years.

I used to own a large SFR management company I sold to Evernest in 2019 and I manage a Kroger SC and a set of retail condo suites for a client now but it isn't my thing.