For fourteen months until he was incarcerated, PF readily performed all of the duties of fatherhood, in addition to claiming fatherhood; with KB's full permission. The ONLY way the B's could dispute his fatherhood at all would be with a negative DNA test. Frankly, I don't see parents trying to prove their daughter didn't know who the father of her baby was. It just doesn't compute in my mind.
My point in posting the link to the article is that including his child as a plaintiff in a lawsuit against him might bring in several other issues. I think PF has clearly signalled that he is going to fight not just to clear his name, but to exercise his rights to be a father to his daughter.
As long as I'm spouting my opinion only, I'd like to say that PF clearly has assets to draw from to bankroll the fight, and unfortunately big civil battles sometimes devolve into a contest of issue after issue, until it seems that who can suffer the expenses the longest will eventually win.
It's going to be a long and very interesting fight on all three fronts.......the criminal prosecution, the legal quest for long term custody of the child, and the suit for damages. IMO