An inheritance that was given to me from an overseas individual I am not related to, has been decided to be split into three pieces, one of which will be mine. I repeat that the money in question has legally been decided in country to be entirely mine, and it is my choice to split the proceeds of this inheritance between us. When my portion is wired here to me, is there any IRS or government forms or information I need to give the government about this transaction to avoid taxes and any legal issues?