Maybe use a decent lawyer? get them to rewrite it or change/add clauses?
I reckon you have got to be some dumb mother to not make that place work ,needs only a little investment, lots of initial effort and bingo, money making machine.
Got to keep away from it becoming a late night only venue, get the day trade and all evening stuff, open it up a bit for the day, making it more accesible, less dark, give some shape internally, some corners etc, maybe a unique theme. Take that stupid big sign off it and give it a bit of external class.
There doddle, why didn't I rent it?