What is the basis for qualification and what should I guarantee?
You should create an offer. The offer should look like: I will guarantee you X outcome in Y time, or I'll give you Z. Z could be your money back, a $250 Amazon gift card to your favorite steakhouse, or whatever you want. Basically, it needs to completely eliminate risk for them accepting the offer. Then you look and see if the business you're on a call with can actually achieve what you just said. If they don't have a good sales team and you're guaranteeing revenue, their ability to close that revenue depends on their sales team, meaning they won't be able to help you fulfill your guarantee, so you probably shouldn't work with them. As Hormosi said, virtually all sales calls are just verifying eligibility for the guarantee. When you run offers like this, you're literally on the call to see if your guarantee—say, booking them 20 sales appointments in 60 days or they don't pay—is something this company can actually deliver. You use the guarantee to get them on a call, then verify their eligibility. Some will say, 'Fuck yeah, we can totally do it.' Others won't look capable or competent; in those cases, you don't move forward because you know it's your ass on the line at the end of the day.