They did mention a retainer fee which I am guessing the normal 8 to 10 percent of monthly rent.

He refuses to use it because there's a $2 convenience fee.

My monthly fee covers E&O insurance and Showing service  plus tech fees, so shop to see what you need, that would be minimum. 

I’ve negotiated what I think is a great price from his original asking price of $135k in order to ensure a lucrative ARV.

I didn't include much information in my original post.

Not to sound condescending or ignorant, but are you interested in wholesaling because you saw an Instagram or ticktock of some guy waiving around a hefty assignment fee check?

I found out through my own research that low scale as a project manager the fee or rates can range $8000 to $10000 and upscale as far as $20000 plus 10% of the profit. 

The builder's fee, for instance, should not be an afterthought but an integral part of the budgeting process.

It is a literal cost to the lender - and most of the loan documents I’ve seen (done professionally) say that a borrower will repay fees incurred by the lender to safeguard the property.

I was thinking about structuring a deal as follows:he owes the 1st mortgage $211kI was going to go in and give him $5k entry fee at the sale price of $235k.I need about 5-6 months to rehab the property, list it, and sell it off for the projected 375k.any guidance on how to structure this would be highly appreciated as I want to make sure that when this property sells he is only entitled to the $235k price, which $211 will be going to the mortgage pay off and remaining in his/and his future ex wife pocket.