My ex walked out 9 years ago and last made an effort to see our daughter (13, ASD/ADHD) in 2016 - that was for 45 minutes. The last regular contact he had was the year before for a few days every other month. It was his choice - I've never withheld contact, but didn't reach out to him either. He's a grown man who was sadly distracted with other women, our daughter was low on his priority list. I stayed in that house for another 4 years, never changed my number/email/socials so he can still contact if he chooses. I believe he's changed his number, and I'm blocked on all his social media.
In 2017 I met my new partner - we took things slowly, and moved in together 2 years ago. He's amazing with her, she adores him and life is pretty good. Her autism means she fixates on things, and the latest is us dying - she's worried about what will happen to her.(I believe it's triggered in part from watching Annie and seeing the orphanages..)She stopped mentioning her dad months before his last visit, and hasn't ever spoke about him or asked. She introduces my partner as 'step-dad' without us bringing it up - she's come to that decision alone.
So - I want to put some legal protection in place - including granting parental responsibility to my partner, and appointing my dad as a 'guardian' in case anything happens to either of us. And immediately hit some snags! It seems I can't allocate parental responsibility unless we're married or in a civil partnership - and all the forms etc mention mediation is mandatory before you can apply for a Child Arrangement Order - but I don't know where he lives or how to contact him! I also don't really want to 'lift that rock' of contacting him in case he demands access - I don't think she would cope well at all after all this time. I'm waiting to hear back from some solicitors, but wondered if anyone else has dealt with anything similar?