You screen them just like normal renters. 

I usually set myself a maximum price I am willing to pay per door, but I have gone beyond that on this one because of location and its quality units.

There are many appraisers who will never change the value no matter the quality of your comparable sales. 

It can be tough because of the demographics but if you're screening well or using a good property manager, you will be fine.

I had to look up the facts on PEX and here is an excellent overview:https://www.pexuniverse.com/types-of-pex-tubingIn a nutshell, the letters refer to the production method, not the quality.

I am no expert but I have 22k hrs of screen time of experience.  

Lower price 2 million and below high quality assets many are purchased all cash so they do not care about debt versus cap rate spreads and interest rates rising etc.

My current tenants which were inherited when I bought the property are moving next month..So now the real challenge of being a first time landlord is approaching, and my biggest concerns with screening are:Evictions and Criminal Background - How do you check for this?

So if it’s not you maybe it’s a quality real estate agent or property manager or even other investors. 

I need a quick way to screen out the obvious loosers.