Chrys- Im aware of what we're talking about here, and the link you posted was the form one firm fills out to assign the judgment to another, not the notice that is sent to the debtor. The law firm I used to work for often had judgments assigned to them, and it was legal practice that a new FDCPA letter was sent upon receipt of that new judgment. that letter would state two things - 1, that the judgment had now been assigned to a new attorney acting on behalf of plaintiff so and so, and 2, that the person had a 30 day period with which to dispute.
and yes, again, i understand its done to enforce the satisfaction of judgment, thats only logical. there would be no other purpose unless the second office liked to be ripped off!
again, i tried to look up something on google to show what im talking about but i couldnt find it. so take it for what its worth.