An absurd situation with apparently no one paying any attention to the little details that we all spend our life worrying about! I would think the assets could not have been moved from A's plan to any other place without A authorizing it (which he probably did). But in military parlance, this is a FUBAR! (You can google that if you don't know the term.) It will likely take a seasoned ERISA specialist (possibly an attorney, but not always) to figure it out, get to the bottom of what happened, and figure out all the things that need to be done to fix it. And of course, it's unlikely the client wants to pay for it because if he had been paying for competent assistance all along, this would have been identified when it happened and fixed at that point! I'd get paid in advance if I was hired to help this guy.