Now to the late Anna Nicole smith and a key ruling in the seemingly endless legal battle over her late billionaire's fortune. Tens of millions of dollars at stake for smith's daughter and sole heir,... See More
Now to the late Anna Nicole smith and a key ruling in the seemingly endless legal battle over her late billionaire's fortune. Tens of millions of dollars at stake for smith's daughter and sole heir, dannielynn. ABC's Cecilia Vega has that story for us. Still don't know what's going to happy but happy with what came out. Reporter: A battle that has raged on for nearly 20 years but this morning, one chapter in the legal tug-of-war between the estates of Anna Nicole smith and her late oil tycoon husband is finally over. A judge rejecting a bid by smith's camp in federal court to win about $44 million from the estate of Texas billionaire J. Howard Marshall saying in a new ruling the fight has lasted nearly 20 times the length of their marriage. My husband is not alive to testify. Reporter: 89-year-old Marshall died in 1995, about a year after marrying then 26-year-old smith leaving her nothing in his will. I lost my sheep. ? Anna ? Reporter: Smith fought for a chunk of that fortune until her death from a drug overdose seven years ago. Smith's estate continues the battle. My mommy. Reporter: Her daughter and heir dannielynn is now 7 and living in rural Kentucky with her dad Larry birkhead. He told ABC news last year they're staying out of the court fight. I worry about my financial situation and that, you know, the lights are on, the groceries and I don't worry about that. Reporter: The case has gone on for so long most of the main players have died. Smith, Marshall and Marshall's son E. Pierce Marshall who fought the former "Playboy" model from getting a dime of his father's fortune. It's cost a tremendous amount of money to litigate these claims and hopefully soon all of the litigation will be concluded and we can put this case behind us. Reporter: This morning smith's estate is not commenting but they are heading back to court. This time in Texas where there are potentially still millions more at stake. For "Good morning America," Cecilia Vega, ABC news, los Angeles.
This transcript has been automatically generated and may not be 100% accurate.