Oh, it is at a building in the city? you might want to see if there is a kitchen and if you have access to it. Also check if there is refrigeration and the ability to heat food.
I got a friend a catering gig this year, and we found out, no stove, no oven, one plug, no refrigeration, one hour access to site. He nailed it, but, haul in was a bitch, and he kept looking at me as if to say 'no stove, really?'
me: I don't drink anymore
Yelonutz: me either, but, then again, I don't drink any less