Clarification on using a realtor

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Hello all!
I have a question for anyone that is willing to help. Is there any use for a realtor in wholesaling??
Every house i look at ...or at least the majority have a Realtor sign outside! Can we as wholesalers use a realtor to our advantage??
i know that it is illegal to pay them any kind of commission on any particular deal, but that is as far as i know. How can we use them besides having them look for comps, DOM, asking price etc... I see too many houses that have a realtor sign in front. There has to be a way we can use that. Anyone have any success with realtors??
I have a person who contacted me and says she is a realtor and is going to be leaving to become an investor, and she says she has access to mls, and knows where the deals are.
Any help would be great!

Abel