can we stay in the spot with our car??? and sell next to the car?

I think so

Yes. But it's only 1 vehicle per spot unless you pay for more

Yes

Leyla, yes you can

Yes as long as you pay for the spot.

As long as you pay for the spot the 1 car only can be in the spot with you yes. If selling in the parking lot NO

Yes, That is generally how it is set up, you bring your car into the lot and park it in your spot and set up right by your car.