Your husband had 5 years to contest paternity regarding the two children. Since that window has come and gone, he is stuck paying child support.

You should file an amended application for marriage license which states your husband’s true social security number. You marriage is still valid.

Unfortunately no. You must have a separate bank account with your name only. You are at risk if both you and your husband’s name are on any bank account. If your husband’s name is on any account, regardless of whether or not it is primarily your money, the account can be garnished.

I assume your child support order is from Colorado. If not, you will need a lawyer in the state which issued the child support order.

In Colorado, child support terminates when the child reaches the age of 19 unless the child is disabled and unable to care for themselves, the separation agreement states otherwise, or some other reason which creates the need for continuing support. Unless your X petitions the court for an extension of child support, it will terminate at age 19.

Your x-husband’s right to claim your son as a dependent on his tax returns is independent of his exercising visitation with your son.

If their is no Order of the court, you have no obligation to allow him to take the tax deduction.