And again, if you have a question, or issue on an "advanced topic", ask it and then you'll see if there are people out there who can engage on the topic here.

She wont share any details of the agreement or even engage in conversation...they don't even know if it was a verbal agreement or written agreement...although she swears they went to a bank at some point to notarize something.

I also see that in many national guru videos about Texas. 

Take your time, take photos and videos of everything, and use the chance to connect with the seller or broker.

At $500/pop that can get expensive.I have done videos in the past showing that investing in a fund collecting interest only and leaving your principal in the fund pays significantly more over time - but with a note you could get a payoff (which if bought for discount is great).

That could be used to put down the 15% down on the new purchase using DSCR.You could also do a "subject to" contract if you want more info I would look up "Pace Morby's" info or videos on Ytube.

And thank you for the links, I will go through those videos. 

Apparently they can just break contracts without recourse if builders / owners are well connected and I even engaged a lawyer.  

It sounds like your off to the right start -- but watching some videos and doing some research -- keep doing that.

I've done tons of reading and watching videos on Youtube that give very in depth information so I do feel comfortable tackling this deal, but would love some advice as I go through the steps or just someone to come back to for next steps mentorship.