You are right though I should make those percentages a little higher.

@Laura Sciarrino 8%-10% is most common standard rate in area and you can negotiate a percentage or two down given that the PM manage several of your units already.

It seems to me that the percentage of increase should be legally capped in this situation as what would be stopping a landlord from charging $ 20k a month on a property just to hold the tenant to the terms?  

Sometimes in this business we have to play the percentages in order to limit our losses

If you came to me with a bad credit score (meaning < 600 Mid FICO) I would almost certainly only be able to lend you a considerably smaller percentage of LTV on a bridge loan for that amazing property you have under contract than if you had more credit.

You only “get back” your tax rate percentage of the taxes paid.

points" are how you buy down you loan percentage.  

Seeing as how this would be my first time partnering up with someone, i would like to draw up some kind of agreement contract assuring the percentage i would be owed if he manages to successfully wholesale to one of his buyers.

Only a small percentage will ever respond - even if you have the right phone number for every one of them.My investor customers have purchased $40B+ in real estate, and my agent customers have likely listed a similar amount (harder to track so I don't know for sure).

The interest rate doesn't matter, as long as I'm getting at least $350-400...depending on how much (in dollars...not percentage) I put in as a Down Payment.