What is the name of your state? TX

My Cousin has a daughter that my husband and I have kept most of her 2 1/2 year life. We helped out by keeping the baby(from less than 2 mths old, off and on, somethimes months at a time) because she is family...Now there was an argument between my cousin and my mother and she has taken the baby as punishment to us. She does not have a place to live, no job(depending on men to provide), always on drugs and not responsible. She also has 2 older children which live with my grandmother full time, one child is with the father and the other is with my older cousin(her sister). Do I have Rights?