Do we consider our 23 yr old son a family member on FAFSA if we don't claim as exemption on return?

You could say that about anything when you have to project what is going to happen in the future ! As it stands now -and that is all we can go on - we are providing more than 1/2 our 23 yr old sons support - we don’t have a crystal ball that tells us when he will have a job that will provide him more than 1/2 of his support so we have to go on what we know now.