No one factors in tenants completely trashing a house , after not paying rent for 6 months , and the rowhome 4 doors down is abandoned with a hole in the roof and when it rains it floods your basement . 

Provided utilities, roof, bathrooms, kitchen, etc are operable?

Depending on roof line you may be able to get alot of ambient light.

The upstairs master suite features two large walk-in closets.The roof is 10 years old, A/C unit and water heater 7.

Purchase price: $142,500 Cash invested: $15,000 fully occupied, needs some updating, new roof soon, figure out porch thats not being used and falling apart, would like to convert attic to a third unit studio What made you interested in investing in this type of deal?

what if you buy something, and the HVAC goes in month 1, and there's a storm that damages the roof in month 6? 

Looking at maintenance through the lens of a property manager what do you do when it comes to faulty windows, roof, and other exterior problems? 

Appreciate your help.Okay, so a new roof needs to be put on, who pays for that?

And I have never had any major CAPEX expense, like we usually have here in the USA (HVAC, water heater or Roof).

I have a 10000 sq ft 2 story building with a flat roof so the roof would be 5000 sq ft.