Spears, Ms. Spears’s father, who is known as Jamie, first petitioned the court for authority over his adult daughter’s life and finances in early 2008, citing her very public mental health struggles and possible substance abuse amid a child custody battle.
The laws need to change,” Ms. Spears, 39, said at the time, explaining that her previous silence had been the result of embarrassment and fear.
The singer was not present in court on Friday.
And while the great majority of the hearings in the case had happened behind closed doors, with Ms. Spears appearing rarely and speaking only in private when she did, the June hearing was streamed live online because of Covid-19 protocols.
Behind the scenes, Ms. Spears had routinely bristled at the strictures of the arrangement, according to reporting and confidential documents obtained by The New York Times.
In 2016, Ms. Spears told a court investigator that the arrangement was oppressive and that she was “sick of being taken advantage of,” according to the investigator’s account of the conversation.
In 2019, Ms. Spears told the court that she had felt forced into a stay at a mental health facility and that she was made to perform while sick, according to a transcript of the closed-door hearing.
In her comments at the June hearing, Ms. Spears said she did not know that she could file to end the arrangement altogether.
Mr. Rosengart, a former federal prosecutor who has worked extensively in Hollywood, took over the case, calling for an extensive re-examination of the entire arrangement and pushing for Mr. Spears’s immediate suspension as estate conservator; that was granted in September.
In an abrupt about-face in September, ahead of his own suspension, Mr. Spears moved to end the conservatorship entirely.
John Zabel, the certified public accountant who took over the estate in September, would retain “limited administrative powers,” the lawyer said, including the ability to execute estate planning and transfer outside assets into an existing trust for Ms. Spears.
“Based upon the information on the public record, and the history of alleged mental health issues, I am shocked that the conservatorship was terminated without a current mental health evaluation,” said Victoria J.
One of the best-selling artists of all time, Ms. Spears released four of her nine studio albums while under the conservatorship, including, most recently, “Glory” in 2016.
Beginning in 2013, “Britney: Piece of Me” ran for four years at the Planet Hollywood Resort & Casino, grossing a reported $138 million across nearly 250 shows.
Others seeking payment include Mr. Rosengart; Mr. Ingham, Ms. Spears’s former court-appointed lawyer; another firm he brought on board for litigation assistance; Ms. Montgomery and her lawyers; and lawyers for Lynne Spears, the singer’s mother and an “interested party” in the conservatorship since 2019.
Outside the courthouse, amid cheering fans, Mr. Rosengart said that Ms. Spears’s conservatorship had shined a light on potential abuses in the wider system.