Special Power Of Attorney

See: Power of Attorney. But for a better shot, see: Limited Power of Attorney. That's what the "Special" in there means: that their ability to act legally on behalf of the client they're representing is limited in scope.

It's special. Short-term. And the power will expire at some point in the foreseeable future, kinda like a box of crayons when you leave them on the back seat of your car on a hot day.