2 points

1. The Family can never become legitimate. Vincint says in III that he doesn't want to be legitimate. And When Michael passes on the Family to him he tells Vincint to give up Michaels daughter because of this fact. "That is the price you pay for the life you choose" (Ironically she dies anyway as a result od Michael's life not Vincint's)

2. If you develop the story further, be careful not to get cought up in the Gangland stories. In all 3 movies that is secondary to the story of the family, and particularly Michael. The business os only addressed in so much as it affects the family.

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