Whole Selling question

[Alex Chavez]

Hi Investors. 

I'm looking for someone to help with a question I have on whole selling. This is my first time trying to whole sell. 

I have a SFH under contract.

So in my offer I explained to seller that I will be closing in 10 days and offer cash (hard money). If I assign this contract to another investor , wouldn't he have to write up another contract with his own option period and his contract? That would extend closing day +10 days closing due to investor doing his due diligence. Right?

How does that work being that my contract says 10 day closing?