That said, it’s not so much the unexpected problems (which we all try to prevent, but understand may happen) that I’d be most uncomfortable with, but the lack of straight forward, up front communication.

The walls are straight and smooth.  

But if you want to read a condensed version without all of the intermediate side questions and "wow, thanks for posting" of the forum and just cut to the chase, you can buy the book and just get straight to the commentary free info. 

It's not impossible with straight rental income, but definitely a little harder. 

The contract value is 25% to 50% discounted as compared to the final price once the project is completed.

Talk to the title co. about doing a straight assignment, not adding them (which would require seller approval) to the contract.

If they are new (and don't just trust me with hundreds of thousands of dollars like my lenders do), I walk them through them sending the money to the closing atty, how he doesn't release the money until the house is encumbered and how when it sells the atty calls and gets the payoff amount just like they were the bank and fedEx's that amount straight to them.That stuff snowballs.

Most importantly, like most articles of this time, assume you can rent for a huge discount. 

no we charge per property, give discounts for bulk orders, see the site.

I have not used them but PayNearMe is something that Bigger Pockets advertises and I think has a "Perk" for a discount (maybe not, not sure).