Because you are smart - your concerns are very legitimate. 

He seem legitimate etc.

If they're grumpy and throwing a fit, they may have a legitimate physiological need for a nap (and it is ridiculous to have developmentally inappropriate expectations of their self-control--I get cranky when I'm tired, too, even now!

Legitimate videos would be fine too, it's just that I don't trust most of the videos on Youtube because the creators of those videos have something to gain through promising that their videos will immediately land deals (guru nonsense).Thank you

You should post this on Medium but I’m sure those in the RE education business (arguably racket) would attempt to undermine the knowledge you shared today.I’ve been doing this for 20+ years and knowing what I am and when I’m in the other categories has enabled me to be relatively successful in Real Estate.

It is ALSO a great way to F up and do things in the wrong order, take 5 times longer (doing it yourself and taking longer can often cost you more in holding costs than just hiring a pro to do it quicker).Looking at the bigger picture, getting things done with permits and using contractors enables you to focus on the business rather than working in the business.

Should also add- if tenant has resisted there for one year or longer and reason is not provided on request to vacate, the notice to vacate is voided and not legitimate

It can also turn into legitimate deductible expenses for you and bonus if  you open a Roth for them as well!

Are the above approaches legitimate even thought they essentially imply that I got the house for "free" given the price of land in the area.

Luckily I was able to legitimately disqualify them because of that.