Enter recurring charges and automatic late fees.

It is a fairly signinificant set up fee and monthly charge. 

Would the investor have to use an assignment contract between him and new end buyer to collect the mark-up fee aka assignment fee at closing?

Because it still happens here in MA, that is why my first post stated it just in case someone in Mass didn't know it.I have seen crazy things where real estate agents who own rental properties with leases stating a late fee within days of the 1st....when in Mass., its illegal until after 30 days.

You have to pay fees, but you'll have a professional handling issues instead of bleeding money trying to figure it out for yourself, then you have your time free to pursue other things.

I have a non-residential commercial mastermind and the fee started at $2500 in season 1. 

@Edreco AmosMiami’s market can be tricky for cash flow since condo fees and insurance costs can eat into your profits, especially with newer buildings or those near the water.

Quote from @Patrick M Nichols: Cogo is a total scam... lots of fees on the front end.

When it comes to getting loans, which is pretty important for real estate investors, simple "mistakes" can make it so that you either don't qualify or you may qualify but with a higher interest rate or higher loan fees. 

You let it slide, waive the late fee, and she pays by the 10th.