“The art masterpiece in question – Flesh and Spirit, a 12-by-12-foot painting by Jean-Michel Basquiat – is just days away from the auction block. It is a prized asset of the estate of [Hubert] Neumann’s wife, Dolores Ormandy Neumann, who died in September 2016, and its potential sale shines a spotlight on what appears to be a nasty family dispute.”