@Tiago Montoya I'm not an expert, but have spent a significant amount of time and energy researching tax liens/deeds in my state and the state adjacent to me.

Here's what one Section 8 inspection form states regarding outlets: Electrical receptacles – Working properly as determined by electrical tester.

Can we add an electric range or is that illegal (which is what I hear)?

Energy will be the most weaponized and in demand area for the rest of our lives. 

Electricity bill increases to 5%?

We hired Bildwise for a renovation of our 1965 single-family home that included complete electrical rewiring and updating, roof replacement, light kitchen and bathroom remodeling, new flooring, new interior paint, and masonry repair.

With my background as an electrical contractor, flipping seems like a natural choice, however, I'm also interested in BRRRR as I'd like to hold some properties and rent them out.

There are things I know I will never look at doing myself: plumbing, electrical, roofing, installing hardwood flooring, bathroom remodel, and I'm sure many more! 

(Where I rent properties, the city has a law that a property can be condemned if people are living in it without water and electricity.) 

The basics of course, but there is an air fryer, crockpot, 2 level steamer, wok, electric griddle, and the list goes on.