Dark Entities in Human Form? True or False?

Hi

I would like to know if it is true that dark entities are not only in spirit form but in Human form and if this is true how doe's one dispell them from your life? I have read about dark entities in human form in one of Sylvia Browne's book. The description Sylvia Browne gives of dark entities in human, describes someone i know to a T. What can i do to get this person out of my family's life and mine. I don't want to get mixed up with dark entities at all but i have to put a stop to these dark energies. Does anyone have answer for me?

P.S. i'm still trying to figure this website out on how it works, so please forgive me if i posted this message to the wrong spot.

Many thanks
Bethany