From a practical point of view, how did you manage to finish the "upright" edges & ends?

Maybe that would be a good practice for folks no matter where they are buying! 

I'm practically new in real state investment.

Any advice at all or suggestions on where we can begin learning investor friendly practices would be greatly appreciated. 

They are willing to practice law without a license?

Since your seller is renting the home they will have the same issues, so you're compounding your potential of legal violations causing the entire arrangement to be tainted.I'd suggest too that you dig deeper in title and the name(s) of your seller as to doing the old finance with a small down, collect payments, foreclose rinse and repeat, illegal practice now, thank God!

I am very well-versed in finance and financial modeling so this stuff is very fun for me to think about, but my only practical experience is buying my own apartment a couple of years ago.

I am a web developer and SEO freelancer by career, but really want to get into a NNN deal.

I would have a serious discussion with them and/or a civil engineer who specializes in concrete about how they recommend you lay your baseplates ... trying to secure your framing to the external walls is not a practical approach (i would need to dig into the math to decide if it would have sufficient integrity), beside what will you do for internal walls?

I got him to take it down, but my question is is this a common practice in wholesaling?