Virtually any income or asset can be attached to collect child support, except for public assistance/SSI.
Yes. Disability of any sort is not exempt from attachment for child support and/or child support arrearages.
no
If your child is not living with you, you are not eligible to collect child support. The child support should go to whomever is caring for the child.
VA disability is considered income for child support purposesso you would need to pay child support out of it unless a judge determines otherwise.
Your custodial parent can collect unpaid support that accrued under an order. Support sometimes continues after the child becomes an adult if the child is disabled.
yes
yes
Public assistance recipients assign their rights to child support to the State which, presumably, will attempt to establish/collect support.
a portion of the social security disability income, if filed, can be considered as child support
Reference to "seventy four percent" is unclear, but it seems unlikely that the child's mother could collect current child support in such a situation. (She can still collect past-due support, if any.)
If the issue is child support that would depend on the terms that are in the child support order. If the order stipulates an age over the state's age of majority then it is likely arrearages can be recovered, as disability benefits are subject to garnishment for child support obligations. Relating to child support she would need to file suit or request assistance from the state's department of child support enforcement. If it is for spousal maintenance (alimony) it is unlikely she could recover any arrearages.