Lawyers for Anna Nicole Smith have stepped up the ongoing battle over the late star's inheritance from her dead husband - asking the U.S. Supreme Court to finally resolve the dispute.
Smith, who died in 2007 at the age of 39, was 26 when she married 89-year-old oil tycoon J. Howard Marshall II in 1994.
He died a year later (95) and Smith claimed her husband had made an oral promise to give her half his estate.
Smith - who was born Vickie Lynn Hogan - battled her late spouse's son, E. Pierce Marshall, to be awarded $88.5 million (£61 million) of his fortune.
But the money has been held up in the appeals court, with Pierce Marshall arguing that various wills and trusts his father had prepared over the years named him sole heir.
America's Supreme Court ruled in May 2006 that Smith could pursue her late husband's fortune in federal court.
Pierce Marshall died a month later but the battle continued with the executors of his estate - and is still going on after Smith's own death, with her lawyers seeking the money on behalf of the star's two-year-old daughter Dannielynn.
And now Smith's lawyers have filed papers claiming the dispute needs to be settled soon as most of Marshall's $125 million (£86 million) estate is now owed to the Internal Revenue Service - and Smith's settlement risks being lost if it continues to be held up by the U.S. Circuit Court of Appeals.
The papers state, "Vickie's estate will undeniably suffer irreparable harm if the stay is not vacated, as Pierce's executor claims there is no money to pay the district court judgment, and Vickie's estate cannot pursue Pierce's missing billions unless and until the stay (hold on the money) is vacated."