Advice Needed To Avoide Inherited Property Dispute

Asslam o alikum

I have a inherited a share in a small house i.E. From my grandfather to father and then me. My father's brother and his sister also have share. Now my father and uncle have died and my uncle's son is putting pressure on me to sale the house and threatening me that he will sale himself if i will delay. I don't want any dispute but i want to know what are my legal rights if i don't want to sale my share and want to keep it?

Thanks, Ahmad lahore