The bank would be screwed.

i'd make him kick his full commission that he gets after splitting with the broker into the profit pot to split--especially on the buy side...youdon't want him to screw you and take his commission from the purchase..don't let him take a dime until you sell the property is my advice..i'd also see if he could come to the table with a few bucks as well..

We've built and rehabbed primary residences so we aren't that naive couple that doesn't know what a phillips screw driver is. 

Yes, even if I "screw up" there should be PLENTY of $$$ left-over.  

Changed the numbers very slightly from the actual so privacy purposes which is why the cash flow number may have gotten screwed up.

If there is anything that will screw your day up, it's a agency claim that you misled them etc.  

My favorite method is to set bear traps around the perimeter of the units and cover the traps with leaves.Another option is to build a privacy fence around the units and replace the screws in the units with security screws.

There are so many ways to screw those up and the law is extremely tenant friendly.  

Ive been screwed by plumbers, electricians, and carpenters because I am cheap and go with lowball offers. 

Yeah, you're getting screwed.