I'm with Sadie on this. You should look up the case of Re A (Joint
Residence: Parental Responsibility) [2008] EWCA Civ 867, [2008] 2FLR 1593.
I think it apples here.
It concerned a non-biological father.
The child was brought up in the belief that he was the real father. On
breakdown of the relationship, it turned out he was not. He issued
applications for
residence,
contact and parental
responsibility.
On Appeal, he got a joint
residence order so he
could have PR. The court wouldn't make a separate order that he was the
child's biological father. No surprise there, as he clearly wasn't.
If you are on the birth certificate, it can be argued that you
already have PR. If not, you may be entitled to it by arguing the child
has lived with you for more than 3 years since 2006 - even if only for part
of each week. (s4A Children Act 1989)
If not, you are still
entitled to apply for a residence order. It would be "shared" residence
not "joint". "Joint" residence implies you both still live together. A
residence order carries with it the automatic award of PR. So you get it
one way or the other.
HTH - Will C