I remember some years ago there was a KM that touched on the subject of taking care of relatives who may not be believers, or parents who may not believe. If I remember right, it gave the green light on saying no. I do remember a few dead beat dads and dead beat children who cut their family support off. One in particular left his wife and 2 kids. Wife didn't work. No problem, he remarried some pioneer whore and he kept serving. We were all wondering how but he sold the brothers well. We all thought what a jerk but no one ever stood up and said it.
I doubt your dad would have pursued such a course unless he knew he had the full support of the elders. Aren't they all just full of themselves?