my partner and i plan to get married early next year, my son from a pr is 7 and has my surname hasnt got his dad on birth cert. and hasnt seen him for over 2 years (he also hasnt got pr) i would like (and son would like) for my partner to become his legal guardian also and to take his name. would my partner have to adopt him as a stepchild or can i grant him pr and change name through deed poll????? also my 7mth old daughter (is my partners) also has my name and he isnt on her birth certificate (i just wanted to be in control of my childrens future etc) but again once we married i would like him on the birth cert and also her name changed. any advise greatly welcome!!!!!