@Franklin TirrellAs bob mentioned what is outlined in the agreement is what dictates the terms.I would recommend that you keep an amortization schedule for the partial in case of an early payout you both understand how much is owed.

My view is that a small percentage of properties that are normal (nothing that cannot be addressed wrong with it) make to the auction.I do not believe there is any method to know which RE will be pulled prior to auction. 

There is a chance your profits could be crushed with a bad tenant, but overall if vacancy is your perceived risk it may be worthwhile bumping up that percentage in your calculation.    

I’m new to wholesaling and was wondering how much equity should be in a house to make it a good wholesale deal?

What percentage does the investor want of the deal to bring in the money?

My wife gets "matching" at work too, so I still contribute...just for the free money.For the most part though, I try to avoid the stock market...or anything else where the "thermometer" for success/failure, is based on percentages instead of dollars. 

For the property taxes, is that figure truly representative of the actual expense or did you simply choose a percentage of your expenses to allocate to that figure as well? 

Should I give them a percentage of the cash flow for an indefinite amount of time?

And if you used investment property mortgage loans in particular, what percentages you worked with in terms of rates and down payment?

I've bought two duplexes in the past year (well.. close on 2nd in a week), one is Bradenton, one in Sarasota, and both only happened because I lowballed and was persistent in following up as they lowered their prices down ~$50k (which is pretty substantial percentage, but that's how high things are getting listed right now).