What makes it separate property is whether or not it is ever used for marital purposes and whether or not funds from earnings during the marriage are put into the account. I don't know what "where we'll be residing" refers to. If the brokerage account is in your parents and your name only and is neither added to by you nor used by you for marital purposes, it is separate property.
Answered on Sep 18th, 2017 at 7:56 PM