The Johnson & Johnson heiress was found dead at her Los Angeles home in January (10) at the age of 30, and doctors ruled she died of natural causes linked to her diabetes.
Court papers obtained by TMZ.com reveal the socialite left $75,000 (£50,000) in assets and, with no will, her father Robert Johnson IV, owner of the New York Jets football team, has applied to become Special Administrator of Casey’s estate to stop her property falling into the wrong hands.
The documents state, “It is necessary for him to take possession of all of the assets… as quickly as possible to preserve her estate from damage, waste, injury and publicity. Members of the media have previously attempted to gain access to her personal effects.”
The papers also reveal Johnson’s mother Sale, who is divorced from her father, has applied to become the official guardian of three-year-old Ava, who was adopted by the late socialite in 2007.