Yes, you have an excellent case. And as a tenant, you do have rights. (I too am a tenant, though I have discovered [re: this cesspool known as "Milwaukee"] that the city is chock-full of slumlords. So you might want to try another state altogether, since even the entire state [of Wisconsin] isn't much better).
No advice can be given online. You can come in for intake Monday or Wednesday from 1:30 -3:30. First come first served. Bring all relevant paperwork.
Thanks! Your answer is awaiting moderation.