Assignment fee for wholesaling

[Nelly Licona]

Hi! :) Here is my question. If I am a real estate investor, and I am paying a marketing campaign, but the rest of the work ( setting the leads list, buy the list, order yellow letters, taking calls, see the property, negotiate, close the deal) is done by another person how much should the assignment fee be for this person? Basically I as the investor i am only paying for the campaign , the rest it is done by someone else. Any suggestions? This is in Tx!