ANSWER:

You are not obliged to forgive your oppressor. You must uphold ties of kinship with him as Allah mandates this upon you. You can do this by calling him over the phone every now and then in order to maintain Salam. 

My Uncle, who was custodian of a property, and a cousin ate our share of inheritance. If we do not forgive him for eating our share are we sinful? He is also involved with loan sharks, we worry if we are close to him we will be harmed more so we want to keep interaction with him minimum but we are worried if we do that we will be breaking ties of kinship … how to balance.