更新1:
My mom and dad never knew anything about doing the DD-137-5 for more than 25 years. I have been incapable of self support due to my disability before age 21. They both passed away. My dad was a retiree sponsor. It's shameful and embarrassing they didn't do it. Well, if I have to do the DD-137-5 form, will DFAS accept my own name as a custodian and who has physical custody of a child as myself and get it notarized? I hope someone can answer and save me times and efforts. Thank you.