Its a case where in family settlement all parties got their share. "father, 3 sons, 2 daughters". The mother was not named as a party in the family settlement. The father received a house and its is written the family settlement that he shall be the owner of the property and no sons or daughters will have any right in it. the family settlement is signed by all the parties and it written the settlement form all the parties that they will not claim any other property except the received as per the family settlement.
Now, the father died and the mother wants to make a will of the property received by his husband "i.e, father" in favor of third son. Since, as per the family settlement her husband received the house as his sole property with a note that no sons or daughter have any right or interest in that property. therefore, after the demises of the father the widow of rthe father will take the property.
Can she make a will of the above property.