Confused on Lease Option Sale

I plan to do a lease option for 6 months, to fix up the property and then resell.

I plan to have the property for less than 2 months, I am going to fix and sell quickly.

I’m not interested in getting another renter in the home so I want a buyer.

Since I only have lease option contract on the home, how to I purchase the home, with the money from the buyer.

I receive the money from the buyer and pay the seller the negotiated price, and the difference is my profit?
Do I charge a fee to the buyer in the amount of the contract price?

I am kinda confused in this step.

You’ll have to complete a “same day closing.” You’ll purchase the house from your seller (sign all the paperwork), then walk across the hall and sell it to your buyer (again sign more paperwork). In the end, oooo…look at that, there seems to be a difference from what you paid and what your buyer paid…that’s yours…Invest that money again and again and again…like that snowball rolling down the hill in cartoons…it just gets bigger!!

Good Luck