Birkhead must be worried about questions re: "Did you sign a sperm donor contract?" "Did you have a deal with Howard Stern?" "Were you ever in bed with Howie?"
I'm betting that the Jan 6, 2006 agreement was "part" (an after though) of a donor agreement. I'd be curious to see what kind of agreements donors sign. I don't believe that Anna's signature appears on that agreement...just Larry's which I believe would make it invalid "on its' face".
Did we ever see the agreement that Barth pulled out in Seidlin's court about Larry staying away from Anna? I don't believe Seidlin even looked at it.
It only takes one perjury charge to put you in jail. Lie to a Fed...and it can be for a very long time.