This depends on whether you're in arrears. If not, a formal request to child support enforcement is all that's needed, otherwise you'll need an attorney. Don't consider trying to transfer jurisdiction to Washington, as you overall obligation would jump substantially.
see links
You need to file a motion with the court to emancipate the minor and modify child support. see link for applicable laws.
It depends on when your child support was supposed to end. If it has ended then it cannot be modified retroactively. If you are still paying support, some states go to 21, then you can file a motion to modify your child support.
If the child is still in high school, child support continues until the child graduates or turns 19, whichever occurs first.
No. Only the parents support the child, not the step parents. What you make will have no impact on how much he has to pay in child support. Even if you marry this woman that will not change.
You're not responsible anywhere.
Neither of the parents have to pay because they both have a child.
You can find sample letters to modify child support on legal websites, family law websites, or by consulting with a family law attorney. These letters should include information such as the reasons for the modification, any relevant changes in circumstances, and a request for a modification of the child support order.
Does the child live there? see link below
Motion to modify current and future child support. Make request to child support enforcement.
Revenue does not modify child support obligations. You need to file a motion/petition in the venue that issued the order for support.
You can not modify your child support. Only the court can modify your child support. It is possible the court will do that. It is unusual for your wife to get half your salary. In setting child support, this is a deductible item in all states, that should have been taken into consideration. If not, you can request a modification. see links below
No, the father must support his previous child. You knew this when you had a new child with him.
See links below
The persons in custody of the child must file for legal guardianship and request the court modify the child support order. The person needs legal standing to receive child support.
File a motion to the modify support order, a motion that the mother also pay, or go for custody. see link
All you need to do is, petition the court to modify your child support order.
You need to file a motion with the court to emancipate the minor and modify child support. see link for applicable laws.