Surprising premise. At the beginning the story reminded me of one O. Henry story I read some years ago, but the unfolding of yours was so much better. It combines the creepiness of any horror/mystery and the tenderness of the feel-good story.
Maybe the subject matter (suicide) makes it still creepy, but I guess centuries of after-life paradise mythology should help us give this ghost family a break.
Everyone deserves some good time and nice feelings, I like to think that those who don't get that during their time "on Earth", may enjoy the afterlife in return.