Mom problems

Ranting. Ugh wtf?!

My mother gets her methadone paid for by medicaid. Apparently she has been claiming my 7 year old in her foodstamps and medicaid for years and called me and now asked me to sign a paper that says my daughter is in her care so she can keep getting medicaid. I'm caught off guard. Is this illegal?

**Before December, my daughter's father was responsible for her health insurance per court order bc we shared 50/50 custody. I have full custody now so I'm just finding this out. **