What are my legal rights during eviction?

Hi my situation is i moved into an apartment then lost my job.I paid a month and halfs security plus months rent up front, i paid full amount for rent the following month plus extra 250 towards the next month . Then i lost my job and discovered that the apt(basement apt in 3 fam home) i live in floods /has mold as well as electric problems with outlets. The landlord kept claiming hed fix the problems but always came up with reason as to why he couldnt...even said he wouldnt because at one point because he is selling the 3 fam home i live in...he took chunks of the ceiling out where mold was forming but that was it...and claimed id broken breaker box.By this time i had no money for rent so i didnt push the situation.I managed to find temp work for 4 weeks and received notice after the fact that id been summoned to landlord/tennent court ?but i never recieved any notice otherwise i would have appeared in court.Im not sure what to do at this point?I have 800 in savings but nothing else left to help me move to a new place and my landlord is claiming i have to leave by this friday?Im 21 yr old culinary grad i work hard and am head line cook at respected resturant my credit is good i dont want it ruined? State is nj.