Trying to double close with a realtor

[Armani Emon]

So, I am a new real estate investor, currently I am wholesaling. 

I have a property but it is listed with a REA.

I want to get this home under contract and find a buyer, however I know that wholesaling with a realtor

and wholesaling with a regular motivated seller is completely different. 

Can someone navigate me through this process?

For example, 

1) If I have my own contract can my realtor and I use this contract instead of his?

2)If I am able to get this home under contract, will I have to show proof of funds? OR can I just come up with the money within a specific time period?( If I am able to get the home under contract without any restrictions I can surely get funding from my prospect buyer, however do realtors move that way?