If you want some lower prices, Eastern Idaho is where to look.

I, personally, look for $200 per door, after all expenses and reserves, but that is a goal that you have to set for yourself, based on your comfort level.

So when you say cash flow do you mean (rental income - all expenses - mortgage payment (P&I)) = cash flow  - at the most basic level?

If the value is there to cash out more than you have into it, then you can balance how much additional cash you want vs. your cash flow comfort level.

Depending on what your income level is and marital status (single with no kids?)

Keep in mind that sometimes there are properties with rents much lower than market that could drastically affect the property value if they were increased. 

With the rise of work for home/telecommunting more and more higher level employees do have the ability to live further away from the office if they only have to be there once a week/month.

So I continued paying my Realtor fees but I started focusing more on moving my corporate career to higher levels. 

Most rent-ready or good area 2/4 units are not cash flowing at the prices they are at right now but if you find one in a lower income area and are comfortable living there - then you could have some upside there. 

You can pay points to get lower interest rates with > 20% down no insurance.