These cost a few hundred dollars. 

It was a few thousand dollars less than asking price.

My credit history is not great (missed couple of payments few years back) and I am having tough time securing a loan (borrowing close to million dollars).

You will be going into REI, a career where you will be spending, and responsible for, Millions and Millions of dollars, your money as well as others. 

@James Wise but you are commenting with an opinion on right and wrong and what you think is acceptable or not so I assumed you had a solution on it since some home owners do own distressed properties that they prefer to sell in As Is condition which typically realtors do not want to sell due to them being lower dollar amount, and wholesalers do.

I purchased a 1 million dollar property on a similar income level, but the property demonstrated good value, significant upside and strong comps/rents to support. 

How much is a reasonable referral fee for finding a cash buyer for a multi million dollar deal?

You can buy houses with credit cards, but have to convert the money into cash, which costs many percentage points (unless you have a special offer from the specific CC), but once you convert to cash, you lose the points associated with spending the money.However, I do run all of my rehab projects through credit cards, and frequently have tens of thousands of dollars running through those little puppies.

They are not specific, and they don't have dollar signs in front of them.Goals are numbers with $$$ in front, and are specific to your need for monthly cash flow, and payoff of personal debt.

However, I believe you are limited to 50% of the cost of the property for the rehab dollars.