All sorts of problems can emerge in the first few years.

All sorts of bad things can happen in those scenarios...

We may work together to sort this out.

What sort of things should i be looking at, or focus on to make it appealing and enticing to renters?

Thats why I am asking hereWell, that usually indicates some sort of financial hanky-panky......not accusing your significant other of anything, but just saying........I mean, what other reason could there be for refusing to pay a tax guy a couple hundred bucks....?

You sift and sort the ones that are not an optimal fit right away to leave the precious time for those who are the ideal clients and give them high service.The ones mentioned brokers/agents are a dime a dozen might be doing business on cost only and who is the cheapest.

Someone not paying rent is not a covered Peril.If coverage for this exists, it would be in the insurance bonding market in some sort of form of a Performance Bond. 

But if you core competency is flipping and flipping is what you want to do, take the hair cut, and find the next house you are going to flip. 

I started because I wanted to build some sort of lasting empire, I chose Denver because I live here (that was my first big mistake), and I started with Mid-term Rentals but I really enjoy short term.

Just curious - what sort of rent can you get per room in a house there?