Some good YouTube channels to learn a bit more would be Home Repair Tutor, DIY Creators, and This Old House.

What kind of documentation I need to get so I don't lose my capital.A neighbor of mine came with this ask of funding for building houses .

As a broker I did everything in house

If you treat the renter (resident) well, provide a well-kept home that you service regularly, and stay on top of any maintenance issues, a resident will likely remain in the house for many years. 

So hence the cowboy house was born out of this and this was one of our more fun projects!

Also, it is bananas that a house like that is one is only 849k.

There are risks too, when buying condemned and burned-out houses because you may not be able to control the environment where these properties exist.

I’ve personally gutted and rehabbed three of my own houses, and for the last three years, I’ve been hands-on managing my own rental properties.

This is a fine example of where to research out of state investments as the housing prices to purchase are still reasonable and low (not like California where I am and entry level house SFR is a million dollars). 

**For context I house hacked for about a year after she passed away but couldn't live in that house anymore and sold it.