Unless you are on their birth certificates, you are not legally their father. In that case you need to file suits to be declared the father. If you are on the birth certificates, and this are the father you need to file suits seeking an allocation of parental rights and responsibilities. as to the children. Be aware that if you do so, unless you are given the possession of the children for a majority of the time, it is likely that you will be ordered to pay child support. The mother cannot sign away your rights, but she also could have then DCFS an incorrect address for you. the longer you do nothing the harder it will be.
Answered on Oct 12th, 2017 at 6:30 PM