Anyone, related or not, is a beneficiary if named as such in an insurance policy, IRA, or will. Which relatives are the beneficiaries of the estate of someone who dies without leaving a will is a matter of state law and varies from state to state and country to country.
Presumably, by "aunt-in-law" you mean the woman who is not related to you except by the fact that she is married to your uncle, the brother of one of your parents. That person is your aunt, not aunt-in-law.
ClarificationIf you are wondering if you are an heir at law of an aunt to whom you are related only by or through marriage the answer is no. Only blood kin and legally adopted persons are heirs at law under the laws of intestacy. You can check the laws in your state at the related question link.
I have three nephews.
The plural of nephew is nephews.
Nieces and nephews are the children of your siblings.
Nephews is a plural noun.
Nephews and/or Nieces
The two most famous nephews of Tiberius were/are Germanicus and Claudius.The two most famous nephews of Tiberius were/are Germanicus and Claudius.The two most famous nephews of Tiberius were/are Germanicus and Claudius.The two most famous nephews of Tiberius were/are Germanicus and Claudius.The two most famous nephews of Tiberius were/are Germanicus and Claudius.The two most famous nephews of Tiberius were/are Germanicus and Claudius.The two most famous nephews of Tiberius were/are Germanicus and Claudius.The two most famous nephews of Tiberius were/are Germanicus and Claudius.The two most famous nephews of Tiberius were/are Germanicus and Claudius.
The duration of Donald's Nephews is 480.0 seconds.
Nephews are the sons of your brother or sister. Therefore nephews who are not brothers to each other are first cousins to each other.
I think one of Abrams nephews name is Isaac.
Donald's Nephews was created on 1938-04-15.
Nephews. Huey, Dewey and Louie.
They are your nieces and nephews and not your cousins