do you consider banking a telemarketing company high risk? I know you have to take into consideration the number/percentage of returns and also any reputational risk. Are there other issues in play?

We don't bank them because of the reputational risk.

Do a Google search on "telemarketing scams""florida" and see what you get. Do you really want to get involved in that? Florida is notorious for its telemarketing scams and if your customer is the scammer, guess who the victims will zero in on.