What is your connection with or use of any spiritual energies?
What can we do to change his unconscious reach that is attracting this spirit entity?
Having solved this problem, now how do we address the entity and encourage (insist) that it move along to its proper perspective and place?
The suggestion at this point (only after the source has been willing to shut down the energy) would be to talk the spirit into its new habitat.
Identity of the spirit contact is not of uppermost importance...what is important in this situation is the understanding to get it to move along.
You must be a part of the solution. Sit down (do not do this when in the bedroom, in bed or lying down) and quiet the body, mind, spirit....just a light meditation type of thinking for a short period of time....now address the entity!
Begin with acknowledging its presence...then tell it that it is dead to the earth life....the house, the person, the energies.....are no longer up to them to manipulate and control.....speak softly, firmly, and in charge of the whole situation.....so you are talking out loud to a wayward spirit.
It is important to give the exiting spirit a 'place to go' and for this a white light is used....confirm for the spirit that he/she is to move into the white light (it may appear blindingly to the spirit) and that their own loved ones and angels are waiting their attention.
There is somewhere to be, people to meet/greet!
Fill the empty space that the entity has left with Joy and Love.