My question involves paternity law for the State of: CA

Mother and bio father never got married. Bio father's name is not on child's birth cert. Child is 6 months. Bio father knows it's his child, but never filed anything. Mother later on marry or no marry, husband/boyfriend adopts the child...

- How long generally does it take to adopt a child in CA in cases like this?
- Can bio father file for visitation, CS, etc. after the child is legally adopted by the husband/boyfriend?
- Will mother's then marital status (marry or not to the adopting parent) make any difference in respons to bio father's filing?
- Will child's age (if bio father doesn't file now but later) make differece in bio father's filing? if so, at what age specifically in CA will it make a difference?

Thank you.