I have an 8 year old son from a previous relationship. The father isn't named on the birth certificate & hasn't been a part of his son's life at all through his own choice. I haven't seen him in 8 years & last I heard he was living in Greece. I have a new partner who is like a father to my son. We have been together since my son was three. He calls him Dad & we now have a new baby together & plan to marry. If we get married will he have parental rights to my son? We've also discussed if he could adopt my oldest son? How would this work? I have no idea where my son's biological father is & even if I did would he have any rights to prevent my partner adopting?