From what you say, it sounds like you habitability issues with the unit. You need to give the LL notice of the problems and a reasonable time to repair. Read your lease and make sure you serve notice in compliance with those provisions. If the landlord does not remedy the issues, after expiration of the time to do so, escrow a portion of the rent. This will either prompt a suit for eviction in LL/T court or action on his part to fix the problems. The court will require you post the escrow with the Court clerk.