Interview them. That is what we did and it worked great. Where are you located? I used ours twice and both times was happy. You can incentivise them to push fo

Interview them. That is what we did and it worked great. Where are you located? I used ours twice and both times was happy. You can incentivise them to push for higher prices with the terms you offer them. The ones I worked with were highly motivated and skilled at pushing higher.