State tax filing

Another question,

From my divorce many years ago, the oldest child is under me for deductions.  We had 50/50 split for the kids.  They are with me half the time and with her half the time.  Last year my daughter decided to live with her mother, but her mother also set me up and took me to court where her fake claims got rewarded by me paying her almost full child support with our kids at 18 and 16 even though I still have my son 50% of the time.  

 

My question is can I still claim my daughter on my tax if she is living with her Mom, but I paid child support and the decree says I can claim my daughter?

 

Second question is does any of this matter if my daughter made more than $4200 from her part time job?