Dear Client,
You are advised that, the all heirs of your deceased father are entitle to succeed the propertyleft by him.Your son in law have no legal right to claim the property left by your father. The widow of your brother who have no issues also have equal rights with you and your other brother. The left propety may be divided in three equal shares . One share for you the second share for your brother and third share for the widow of your brother.