Responses are a month faster than a company doing it for you. 

I decided to answer your questions as I'm interested in your response. 1.

The online tools are a good way to get a ballpark number and can sometimes be close to accurate, but a PM is able to tell you a more accurate amount. 

They have no credit history, so you have no idea how responsible they are financially.

If your local municipality has an online court records, go to their website and look up both criminal and civil histories.

Why are you entering a hospitality business to automate your (im)personal responses when guests have an issue?

Thanks for the response.

It would be nice if you gave them more than that, because it takes a lot of effort to move a business (online marketing, business cards, etc.).

Be sure you consult your agreements with them as well to determine if there is some other action you are responsible for.You may also want to contact your insurance to find out if and when they may step in and do something.

You can easily find this online but I will message you directly with some additional info.