Clarify the relationship between realtors and wholesalers?

[Dominique Nolen]

As I'm studying wholesaling, a lot of advice is saying to connect with realtors. I'm still not quite sure how wholesalers and realtors collaborate to their mutual benefit. It makes sense that realtors would have the MLS access and could pass along listing information to wholesalers, but I'm confused as to how realtors benefit. It seems like we would be in direct competition. Are we trading referrals instead? I'm so confused. Can someone help me understand?