I can't find anything that is official.
It would be announced wouldn't it?
I'd think if LA had a new attorney it would be on HLN, etc. Right not I think he's still with Lippman. LA seems to have distanced himself some from the case by not showing up for verdict, sentencing, etc. I also don't see him writing a book. I think he might make an attempt at a new life. I hope he does.