Can I change my sons last name after marriage?
I have been divorced for almost 4 years and have a 5 year old son from that relationship. I am going to be getting married in 1 1/2 years. We also have a son together. My fiancé has been with me since my older son was 10 months. Needless to say he calls him daddy and his biological father by his first name. I would like to add my fiance's last name to my sons last name once we get married. For an example Adam Adams-Johnson. Do I need to get his biological father's approval or is there a way for me to do that without him?