Filing an inheritance case to split a property

My brother and I bought a property in RAK. My brother died in a car accident 2 years back.

I am an Indian citizen and my brother applied for PR in Canada. His younger son is a Canadian citizen and the elder one is Kazakhstani citizen.

His wife also holds Canadian PR. He left no will; he has two sons and a wife, and the wife is not on talking terms now. I am confused about what to do to resolve this.

I have paid all registration money and now I am stuck.

Please advise