You know this kind of problem is very rampant here in Qatar and should not be tolerated,one month notice to the landlord is really a MUST, so the landlord can still get new people within that period. This is like respecting the owner's feeling,you know that just like u, probably your landlord is also an expatriate and has to work really hard just so he could pay his rent, so it is just the best thing to do, i think....its either u give one month notice or pay the rent, that's all....