Can i sue my landlord/get out of this lease?.

i leased a property back in march for sno cones i signed the lease forst then i went to the city to see how much it cost and what i needed like 4days later. after finding out i went back and ask for my money back because of everything the city required. The landlord kept saying no i will work with you don''t worry. then 3/7/2012 i asked for my deposit back he still wouldn''t give it...he knew a person that would charge me cheap for everything. well here it is august i''m not open and he has threaten to change the locks on the doors now that i''m $11,000 into it. I hired his plumber guy that has screwd me over for $3500 and the city is saying that i would have to add at least another $3000 into the building before i can get a co and landlord won''t get ceiling fixed nor will he get light covers repaired and the hot water heater he states that everything the city require i am responsible for and he is wanting rent when i am not making any money to give him and his people is steady screwing me