yes, but it should go to them directly
Only Welfare
No as he can't do that. Not even the courts have the authority to exempt the man from paying child support when Welfare is involved. The mother has no say or authority over the child support. She forfeited that right when signing up. She would have to first give up her claim to Welfare benefits before any action could be taken on child support.
I am pretty sure it would be the mother's responsibility since she is the one who is getting welfare by fraud.
The father has to have the court's consent to cease paying child support.
No, as even with receipts, it can be ruled a gift, especially if she is collecting welfare. You need to establish a voluntary order. see link
Seek welfare and they will automatically seek child support from the children's biological father unless he is already on it and if that is not enough you can get welfare.
If you are paying the mother because of a court order then you must continue to do so if the girls have not reached their majority.
No, but you have to tell the venue that issued the support order.
No but your mother can. The child support goes to her and not you.
Yes, if she has an older child she currently pays child support for.
You can sign your rights away but you will still have to pay child support if you are the father or mother of the child. There is no way to avoid paying child support.
Child support is calculated based on income of the father (or mother in such a case). If the father is unemployed his child support will still be calculated based on whatever minimum wage is in your state. The only time this does not apply is when the father is on disability. Welfare shouldn't matter.