Breach of the lease contract obligations by the landlord

We moved into a villa in August 2017 and we paid one cash cheque payment to the owner who is local, as he gave us a copy of his Emirates ID and contract.

In December, our water was cut and was told by ADDC that the water has not been paid since August, which we all donated and paid for as we are about 7 tenants in the villa (Studio).

On the 10th of this month, a legal notice came from the court showing First Gulf Properties that the landlord should appear in the court. He didn't show up to which.

Yesterday, another same one was sent to him to appear today of which I doubt he did go because all his numbers are off. I need to know what's my right in this.

NB: This property is in Abu Dhabi and I have a copy of the landlord's Emirates ID. I even took a picture of him and my husband with the agent, and a copy of the cheque I gave to him the day we signed the contract.

Please advise me.

Thank you very much as I wait for your swift advice.