Sister gave birth to child and gave him to myself. After one year father signed temporary rights of his minor two children to myself after a cps case waiving her rights. I gave oldest child to mother but youngest I kept. Father now deceased and after ten years mother wants to take minor child from me. The minor child does not know her and does not want to live with her. We have no legal paperwork of custody with the courts. I have everything in my name SSI, SSA, & Medi-Cal.What are my rights? y