In a large city, people are cut throat and motivated, by greed. I

Thats just being greedy anyway but most states don't allow that either.If they still til the 3rd, they're responsible for the entire month's rent.

Before retiring (at which point it is prudent to shift your risk/reward ratio), I used to be an active futures trader.  

I do care if he is pushing a 70% deal into an 80% deal because he is getting greedy and pushing up price because he thinks he can get away with it.

Maybe I'm greedy but that seems like a very low profit margin for managing 50 doors and the tenants that go along with those doors.

If they check out the property, and see that it actually needs $25K in repairs, you just lost them and their respect.Don't be greedy with your assignment fees, always make sure your repair costs are in the ballpark, and always make sure you leave $10K-$25K in profit for the cash buyer depending on what each cash buyer typically expects to make per deal(ask them how much they need to make and make note of it in your cash buyer spreadsheet).When you find out what cash buyers want first, then go find those properties, it's call "Reverse Wholesaling."

I'm also an ex-stockbroker and trader.

In my greedy haste I decided to leave them in place.

But, being the sly match maker I am, I advertise the opportunity to date your daughter for a small fee, say $800.00 because I'm not greedy and I need quick money.

Now, you can get greedy (as I probably would be in this situation, putting aside the worry that one of the Airbnb guests are a bad apple and destroy the place / stay around and you have to evict them).It could be a win-win.