I know we all try to steer business to our personal sand box's however singling out one turnkey company while praising another seems mean spirited and or there is some personal vendetta going on and so maybe the OP will want to  take that into consideration.  

the post by the op is fantastic!

UPDATE-Since my OP on 9/18, I told my roommate that the option for her to end the lease early is available.

Moving into an LLC is way way down at #5 or lower on the list of liability containment tactics.Also re the OP's topic, don't worry about due on sale, banks today learned their lesson re calling loans and foreclosing. 

I highly doubt this young lady told the seller she does not have the ability to buy it and will not buy it if she cannot assign the contract  ( assignee clause is fine but its intent). so look at it from sellers point of view they have no clue that someone else is going to buy it show up and  see this wholesaler making 4k off of her.. get pissed and do this.. it probably would not have mattered if the OP was present at the closing the seller could still have just said no.. walked out got with the buyer opened escrow and closed..

For the OP, I have a gmail account for the LLC I use to manage my properties, which manages my accounts, cozy.co, and google voice. 

@Richard OkagbueThe rent ranges seem all over the place in OP.

As to the OP,  it appears they are brokering without a license.

That was my first thought on reading the OP.

20 years in commercial construction here…Construction Defects lawsuits are brutal, and your completed Ops as you apparently know cover that kind of loss.