It worked for me. I made it clear in a letter (mailed with a cover letter by my lawyer) to the secretaries of both congregations I had been associated with that I was exercising my right to religious freedom and no longer wanted to be one of Jehovah's Witnesses. I made it clear that I was not dissociating myself and that if they announced my name from the platform, I would sue them all. I made it clear that no member of either congregation was to approach me at my home or work in any official capacity. Even elders will greet me in passing in public, but don't linger. I like it that way.
Now that both of my in-laws have passed, I might have a few words for the hypocrite elder that viscously turned on my son. Time will tell.
Diane