Im in a very similar situation, relating to someone who has been a friend of the family for 20 years.
I've never before even contemplated doing a 'working' that would tamper with another person's free will.
BUT I was finally forced to recognize that having this person around poses a significant risk for my family, due to the individual's utter loss of control, recklessness, and zero accountability -- of course all related to utter denial of a substance abuse dependency.
The reason that I'm even discussing the back story, is because dealing with someone who is "sick", but refuses to change or help themselves, really forced me to reexamine my personal sense of Morality, Values, etc.
Having always before been a total "pacifist" about using the force of my intention against someone else's will, I eventually came to the conclusion that there are situations when an individual is morally justified in imposing their "will", or using it against another, if that other poses a threat/is a long-term challenge/turns into a plague (pestilence, leech, parasite, utter burden, etc.)
So I started looking around for this type of spell, and came to a few other realizations:
- A spell of this magnitude will require quite a bit of contemplation, concentration, preparation, time (basically, energy!) on my part.
- It is more meaningful for me, personally, to craft my own spell (rather than finding and repeating someone else's); since generally the more meaning a ritual holds for me, the stronger its effect
- I do, however, plan on incorporating certain symbolic elements from other people's spells (such as the use of Black candles, sending the person's name "away" in a helium balloon, burying their name in nature, etc.)
- I am very mindful of the Moon Phase / Astrological "climate" for carrying out such a ritual (For example, a Full or waning Moon, especially in Scorpio, would be an appropriate time).
- Due to my innate sense of tolerance, and ingrained value of "free will", I am strongly leaning towards including a "for the Highest Good" clause in the ritual, as a requirement that must be met, before the Spell can work. Something along the lines of stating an intention, that 'if my desire to banish Person X is NOT for the highest good, may the energy from this Working be "donated" instead to wherever in the Universe it is most needed."
- Similar clause, that if Person X ever regains control of their life & Substance Abuse, the Spell will be broken, and the banishing no longer in effect.
Sorry for the long post, but I've given the banishing issue much soul-searching and thought.
If anything, exploring my views and boundaries, in such a grey-area of morality, taught me some lessons about myself, and my role in family/community/the World.