If you are trying to predict for the future you can't.  

I would add that no landlord can precisely predict the time factor of a property. 

What is your prediction for that market in relation to the recent oils field bust?  

If everything in my personal life stays the same (of course no one can predict a Black Swan event) in terms of W2 and if we hold for a while, are there any outside factors that could be that severe that we'd be forced to sell?

You definitely aren't going to have a great predictable return, especially in the short term, if you try to invest turnkey; at least at the single family and small multi-family level. 

Good luck with that tenant, I predict problems.

Obviously, we can't predict the future, but, what numbers might you pencil in here?

There are a few things that are a bit more predictable such as Comp roofs.Question 2. 

Are there some static things one can look out for to predict what's coming next?

I wish there was a tool which can look into age/condition of the house, locality, demographics etc. and predict all the cost components such as vacancy, maintenance with a high confidence.