Can an insurance broker set up shop at a used car dealer?

I am in the slow careful arduous process of starting up a used car dealership. I had the brainstorm of an Idea of also either getting certified to sell insurance and sign up with Gieco and Progressive, or hire an agent, or even invite a brokerage to setup an office on my lot. The more I think about it the more I wonder about the legality of it though. I start thinking about conflicts of interest and the like. I am at the capital organization stage, and have yet to consult a lawyer for my LLC and licensing needs, but wondering if this is something I should even bother thinking about.