To play devil's advocate, if you are having trouble finding deals what makes you think someone you pay - whether a commission or hourly or small percentage of profit - is going to have better luck? 

@Jay Chan, I'm guessing that those S corps all have identical or similar share holders and percentages. 

Just ask your buyer what the highest percentage is before not considering a property a deal.3) Take the reduced answer, subtract your rehab approximation.4) Subtract your expected wholesaling fee.5) Subtract 3% for closing costs.The answer ordinarily would be your maximum allowable offering to the seller, but because an agent is involved (and need to be compensated, along with your fee, in addition to closing costs)...you will need to negotiate well to produce something that can be called a deal if the current ‘Sold’ comps are not tens of thousands above your closing price.The more ‘tens of thousands’ above the total closing costs the better for a deal. 6) Because your agent will be using a standard contract, you will be asked about a closing date....you can just ask your buyer how fast a closing can occur if needed (before speaking with the agent to complete the purchase agreement.)7) You will be asked how much of a down payment you want to offer in the agreement.

@Alessandro GrandjacquetThe amount or percentage of return is really up to you... 

So, if we assume to costs for a bank to make a loan stays the same (since to be sold to Wall St. they have to meet the guidelines @Chris Martin referenced) and that the fees they make go up proportional to the balance (Look at your HUD-1 and see the number fees that are a percentage of sales), we realize that at a point, the bank would lose money on a loan.

Hi Dylan, Just wondering if you ever got an answer on this, or if you came up with a percentage.

The appraisal came in $50k less than what the house was worth, and interestingly enough it was almost exactly the percentage LTV which made a cash-out impossible. 

Hilltop — Tacoma, WashingtonAlthough most of these neighborhoods have significantly lower income and educational levels (as well as higher percentages of renters than homeowners), most of these areas have property values that exceed the national median home price.

It’s about the same price as Vegas, perhaps a few percentage points higher per square foot.

Should I charge more percentage ?