If it's not a normal part of AZ transactions, I would avoid using an attorney as they would be unnecessary, might complicate things, and charge you for doing so.Escrow and title companies should be familiar with seller financing scenarios.

one day, but for now am just focused on creating as large a nest egg as possible.I found Bigger Pockets through the podcast (I think looking for investment related podcasts), and that led me to the site.

Hello and welcome to this site Aaron! 

ok so i checked it out the page that you provided isnt their web site its a squeeze page which is geared towards getting you to sign up by offering to give you a free e book which in turn gives them your contact info which adds u to their buyers list or private money lending list and all that depends on the page it self you might want to look in to doing more research on them of course so always do your due diligence when ever you deal with any one 

I also understand that the business structures of all of this are complicated, and we are going to consult a lawyer— I just want to understand it better myself when I talk with them.

Hey man welcome to the site!

You could not have came to a better site to learn about RE investing.

I found this site after listen to one of Brandon Turner's audible books. 

But if it gets too complicated and too slick, you might just get slicked out of your $$$.Good luck.

Congrats on everything you have accomplished along with your contribution to the site.