回复：关于美加双重国籍与遗产税:家人持美加双重国籍,长住加.有来源于美国的证券投资收入.

It depends on the total assets of your relative. If he is a millionaire, chances are he may need to do some estate planning to minimize his estate tax liability. There are many ways to do it...

To give up his US citizenship is not as easy as suggested. Again it depends on his total assets. You have to pay a hefty departure fee for giving up US citizenship. You can QQH me and I can do some research for you.