Andrew W. Mayoras, an estate litigation attorney and co-author of Trial & Heirs: Famous Fortune Fights, said he doubts Nestor Cassini will win. "In this case, it appears that Marianne Nestor Cassini, having failed in both New York and California -- both in the initial courts and the courts of appeal in each state -- now seeks to lay blame on the only target left," he said. "She feels they should have attacked Christina Crissini's claim on the basis that it was filed it too late. But, it appears that she filed it approximately one year after her father died. Until he died, the divorce judgment provision was not breached because he could have created a will that complied with it. So Christina's claim likely will be determined to be timely and it is very unlikely that Nestor's claim will prevail."
Nestor Cassini is no stranger to lawsuits. In 2010 she filed a $10 million defamation lawsuit against Vanity Fair after it published a story, "Cassini Royale," about the battle over Cassini's estate. Publisher Conde Nast says the lawsuit is unresolved.