Question about marketing on Craigs list

[Eric Schuettenberg]

I read that I should place ads on Craig's list to advertise for wholesaling. I also read I should contact all the ads on Craig's list in my area to find cash buyers. So my question is wont some of the other ads I call be other wholesalers and not cash buyers? If so how do I determine who is a cash buyer and who is another wholesaler? Do I simply ask them?