Q2: Would it be better to hire a property management company to manage the house since we will be moving out of state?

Also, don't forget a good STR company wants to succeed as much as the owner.

If you have full time property management, it is hard to say you were the one doing "more then anyone else" since the management company is taking care of everything.

I like @John Underwood idea - turn off the utilities and call the Sheriff.And once the house has been cleaned up, get a PM company to run this for you, I don't think you have the right mindset for this, and you can't have your son run this forever, right....?

Also, I found out from the attorney at the title company that the cloud on title they required me to implement at the county office could only be released by their "3rd party escrow" company (which they required you to use) that which the title attorney found was unlicensed and not really an escrow company despite having the word "escrow" in their company name.

My insurance company had a harder time insuring it than the lender had with it.

That being said bills are already in place to supplement more insurance companies and options.

Any good companies to go with? 

Any feed back from these companies?

You'd also want to speak to a title company to make sure tile is marketable and whether there is any scope for you get title insurance, in case the title ever gets challenged a decade from now.