Build and sell led billboard ads in orlando

Hello my name is Jean Pierre Figaredo

I interested in building a digital billboard in orlando. I already know about the led sign. what really what worries me is how to sell the ads. To whom and how to sell them do i need a sale force calling local businesses to advertise with us. How do independent owners sell their space.

Are there ad agencies that handle independent owners?

If we higher a seller what would be an appropriate % for the sell.

Thank you.

We are out of Orlando and my partner is there full time / we have potential clients who would take a look at your board