CoWholesale Agreement Question

[Kike-Lola Odusanya]

Hi There, 

Does anyone have a contract that can be used for co-wholesale agreements? 

I've approached a wholesaler about helping them find a buyer for a property they have under contract, but I'm basically taking their word for it that I'll get paid if I bring a buyer. 

I assume there should be some formal agreement to protect me and ensure I get paid. I looked in the File Place but didn't see anything, so I'd appreciate it if someone has something like that if they could share it with me. 

Also, do I need an additional notarized memorandum to cloud the deal to ensure they can't cut me out of the deal??  

Thanks In Advance!