Thank you for your inquiry. The SSDI question is a tricky one as normally SSDI payments are not eligible for child support. However, there may be other avenues for you to attack in terms of the back child support, including filing a Motion to Adjudge in Contempt; administrative offset programs, and intercepting his tax refund.
If you would like to discuss your case with a child support attorney please feel free to call our office. We offer a free one hour office consultation.
Law Office of Joseph M. Rameaka