Fight custody from different states?

File with the family court your divorce was through for a change of custodial parent (forms can be obtained through the court). As she got custody of your son 10 years ago and your son has lived with you for 2 years, he should be almost of age to advocate his custodial parent (this is usually 12 and over). Provide them copies of your son's school enrollment in your area school district, medical records, and any other proof you have of him living with you for the last 2 years (as that is considered abandonment by his mother).