A court battle is brewing over Jimmy Buffett's $275 million estate. The late singer's widow, Jane, and the co-trustee of the estate, Richard Mozenter, have filed lawsuits against one another. Attorneys said the Buffett case offers important lessons for families planning wealth transfers. A court battle over the late-singer Jimmy Buffett's $275 million estate has highlighted the growing litigation over the trillions of dollars in wealth being passed down to spouses and families, experts said. Jimmy Buffett's widow, Jane Buffett, filed a petition last week in a Los Angeles court to remove her co-trustee, Richard Mozenter, from the marital trust...