Will putting my boyfriend on child support for his subsequent child lower his current child support from his 1st child?

No, that will not change the amount he is ordered to pay for his prior child.

If my "father" says he wants to establish paternity. Can he be liable for back child support? I am an adult.

He would not be liable for any child support, but would also have no legal right to see your son. There are no grandparent rights in Florida.

Can I file a complaint against a judge?

You have 15 days from the entry of the final judgment to move for a rehearing/reconsideration. You should pursue that avenue and then an appeal...

If my son who is 16 starts working will child support be taken away or reduced?

Mr. Pollack is correct, your son's job will not likely impact child support.

Just wondering how hard it is to add my last name to my daugthers.

Assuming the father isn't in agreement, you will have to show that court that the change is in your daughter's best interest.

DOR generally deals with child support issues and DCF gets involved if a parent is unfit. You do not have to be proven to be an unfit parent for...

Child Support in Florida

Your order should specifically state the ending date. Expect to pay through graduation.

Will the court / judge let her take him out of state ?

You need to immediately file a paternity action. You should retain an experienced family law attorney to represent you.

In Florida, how difficult is it to get the court's permission to move to central America (Panama)?

You will have to comply with Florida Statute 61.13001 regarding relocation and prove that your requested relocation is in the child's best interest.

Am I I titled to all the money he puts into his trust for his children?

You need to have the prenuptial agreement reviewed by an experienced family law attorney. Assuming the prenuptial agreement is valid, it will...