One, as many have pointed out is that it has zero barrier of entry, and the hype for huge paydays attracts many people who will attempt it only to fail prior to their first deal. 

This will be a big payday for lawyers and the landlords will get almost nothing.

Pawn shop owners will tell you that many of their customers make good money, drive nice cars but pawn their Rolex watches to get through the month.Without the middle-class Payday loans and title pawn businesses wouldn't exist.

You can usually find used car dealers offering no down payment and 20% interest, check cashing and payday loans, strip clubs, bars, and tattoo parlors a few feet from any gate, none of which exactly correlate to a what most would consider a nice neighborhood to raise a family. 

When you sell the property you will have a payDAY, but during the hold you don’t get a payCHECK.  

Although in a weird way the huge paydays at the million dollar range may keep marginal agents at it longer.  

I sold out of my single families in Phoenix in 2016 ... tripled in price since purchased in 2010, held in a Roth IRA LLC so no cap gains tax, nice payday.

You'll also find that getting involved that regardless of what kind of agreements you have made when it comes pay day, you can easily be cut out if you don't have real skin in the game.

Also thinking if you perfer not to deal with cash offers, and your working with buyer financing your likely delaying your payday, and you run the risk of losing your contract if your buyer cant get financing.

not a bad payday for 2 weeks!