You are correct about the FAFSA treatment of a 529 account owned by a non-custodial parent. Since schools that require Profile use the data as they see fit, it’s impossible to say how a particular school will treat either the assets held in or the funds distributed from a 529 account owned by a non-custodial parent without knowing the particular school’s formula for distributing institutional need-based aid – and good luck getting helpful answers in that regard (some schools may be more forthcoming than others).