Is there a way to get a license to have a small escort business, what are the requirements, do you have to have certain knowledge in healthy sex?

If your idea is to sell sex, forget about it. You are crossing into criminal territory in Oregon. If, however, your idea is to sell escort services such as "wing-man" or "wing-woman" these can be doable, but everyone involved in the transaction must be clear that THERE IS NO SEX. You need to go in for a full, in-depth legal consult for your business. Again, I warn you: DO NOT ATTEMPT TO SELL SEX SERVICES. No matter how you think you can "spin" it or conceal it, you're just going to get into trouble. Also, whatever you do, make sure to pay your taxes!