There is free software out there that will effectively market your property, screen tenants, price your rental based on comparable properties, provide renters insurance and online applications, etc.

So things like decks or porch roofs that have been tied to the framing of the home rather than being self supporting can be a problem - and a financing deal killer unless they can be removed or modified  to be free standing. 

I can refi and cash my self out sooner.  

I think mace or bear spray on your key ring in your hand would be more effective.. 

That you need an self driving car also developed here (there are 5 self driving technology companies).

Depending on where out of state the property is, distance has some effect on how well a property can be managed. 

So, if it's 6 years old it no longer has such a big effect.

Or does it only take effect on new properties?

Before you get into anything else, these number effect your cash flow most.  

With this in mind, what are some effective ways of finding flippable houses that aren't exactly gut jobs?