Just want to say that i hope this all works out for the best. I think honesty is the best policy and think it's best for the little one in the future.

My Dad is listed on a birth certificate, knowing FULL WELL he is NOT the father, and I'm assuming that will have an impact on him and his 'son' later in life too.....

It's always found out, and if he wants to be on the BC then do it now I say and deal with the consequenses now too. It's already all happened, they have a child together...that can't be taken back now.

Good luck to the family