Lawyer to get my kids back.

Hello my name is Karine. I am an immigrant from Brazil. My two Brazilian children were taken from my by American CPS because me and my husband argued in front of our children. I have been fully compliant with CPS for almost a year now but they will only allow me to see my children 1 day for 1 to 2 hours a week supervised. They will not give me an opportunity to get my gets back. It seems because I am Brazilian. They revoked my children passports and made it clear my children will not return to Brazil where they were born. Please help me to hire a lawyer and figght for my rights to have an opportunity to get my children back.