I found this spell on a greek witchcraft forum, so I will give it to you, I translated it in english.
You will need:
1 Black candle
You light a charcoal and throw a pinch of salt in it and you say
"Every single negative thing, I want out of this house
Every single negative thing, should be banished"
then light the candle and bring the picture of the person who you want to make go away and say three times
"First step, you walk
Second step, you don't stop
Third step you pass my door and never look back"
after that something will come up and the person will go.
not tested by me yet!