First you ask your landlord in his face if he thinks he is above the law in Qatar. Keep asking him the same question. Then you tell him if he doesnt like the law to not bother you, but go see Sh Hamad bin Khalifa Al Thani at the Emiri Diwan. Give him the address if he doesnt know where it is . Do not give one inch to these unscrupulous jerks who think the law does not apply to them. You go pay at the rental dispute court at Muntazah Park next to Muntazah signal. They will accept your rent there and you have to do nothing else. Let your landlord run around and waste his time from there. He will have to register the contract at 1% of the rental rate before they even look at it. He will love that.