How to vet a deal when buying wholesale.

[Yuttana Chawengsub]

Dear BiggerPockets community,

I am planing to buy a property from a wholesaler I met at the REI meet up. I never buy from a wholesaler before. My experience is to by from a real estate agent. My question is how do I do my due diligent when buying from a wholesaler? Can I use my real estate agent to help me with the process? What do I need to look for? What can I do to prevent my self from unforeseen surprises? I would love to hear from experienced investors who have done this before. Any insights are much appreciated.