Don't know Georgia, but the bottom line is get the best one you can afford. You are hiring a junior "partner" and it will reflect on you.
Try to find one where their previous supervisors say the patients loved them. Try to find one who's ego is small enough that they will stay within their "scope of practice"- something to learn about and set up for malpractice coverage. Try to find one that is used to a significant workload, as in not fresh out of school. You pay more, but their references are more helpful to judge what you will get.
If you are going to try to pay by the patient, you ought to have a really good idea of how much income is likely/possible, and provide a guarantee for most of it with an incentive for higher production. Why should a good "helper" take all the risk?
As a sub-specialist I am only familiar with NP/PAs seeing patients where I have established the diagnoses and treatment plans. In primary care they are much more a replacement for common problems. Hard for me to believe that they would be doing the Consult for you, but I don't know what's normal for your area.
