If they have real property you could check in the land records office to see if the Attorney-in-fact has recorded any documents affecting the real estate. If not you will need to ask the person directly.
Ask them for it.
to find someones information
You Can't
the court
hello
online
track someones IP and search for him or her:)
Just Pee.
stalker much?
You cannot.
Yes
You cannot find someones name from their email address.