It depends on unscheduled emergency repairs, planned maintenance and capital spending at a refinery. 

2) How to handle a situation that the tenant claims is an emergency that needed to be handle within a couple hours if you as the landlord doesn't believe is an emergency.

Emergency medical costs.

PwC has emerging trends in Real Estate reports.   

Louisville is emerging as an exciting spot for crypto and data analysis companies, two industries that will see substantial growth moving forward.Property taxes remain steady at 1.1%.

If the market goes down badly  or you have some major emergency and you are pretty much in your worse case scenario... would you rather have a paid for house or a paid for rental? 

It will cost you more in the long run if an emergency comes up and you have nothing in place. 

When items break all of a sudden (emergency)2.

This detail is due to the fact that the singular electrical panel is located inside the basement unit of the Quadplex and all tenants must have access to the panel in emergency situations.The options given to me by the inspectors were:Option 1: Make the basement a general area, giving each tenant accessCons: Loss revenue: $6500-7500 per year leading to the property negatively cash flowing.Pros: My issue of creatively placing a communal laundry area would be remedied, saving me a one time project cost of about $5,000- 15,000. 

As an E-6, your purchasing power will only increase with time allowing you to continue with REI while providing you the means to maintain an Emergency Fund for the properties you have already acquired.  20 years, 7 properties, and you will be retired comfortably at age 38.