Moudir,

Those are the 3 points that I can find in your post:

1- Is that normal for all housing leases in Qatar? There is nothing called normal cause it might be a special agreement between the landlord and the agent.

You sign with the agent, and issue the cheques to the owner? why not! everything is possible as I mentioned earlier.

If you're evicted, can't you simply go to the bank and cancel the posdated cheques? not that simple cause the owner will report him to the police.

I think this is what happened, the owner had an agreement with the agent to prepare the contracts (signed by the agent) and to collect the checques (which it will be in the name of the owner) and all this for a percentage of the collection and renting commession, but who is taking care of the mainenance? I believe it is the agent and you should try to get the contact of the owner and tell him about your problems.

Ayman