Not even an hour after becoming Britney Spears’s new lawyer, Matthew Rosengart is preparing to begin the process of removing the very restrictive conservatorship that has ruled over her personal and professional life for more than a decade.

The white-collar lawyer told LA Superior Court Judge Brenda Penny that he would be filing paperwork in the coming weeks to terminate the agreement, which had been in place since 2008. The motion will almost certainly set up a battle royale between Spears and her father Jamie Spears, who controls the conservatorship and his daughter’s $50 million fortune unless there is a dramatic shift in perspectives soon.

Rosengart told AFP on the sidelines of the hearing that he would file a petition “as soon as possible” to remove Jamie Spears as the conservator — and suggested the singer’s father should simply step down.

“We will be filing a petition as soon as possible to move Mr Spears, subject to our formal retention,” said Rosengart, a former federal prosecutor who has previously represented the likes of Steven Spielberg and Sean Penn.

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Spears, who spoke to the downtown crowd by phone this afternoon, urged Judge Penny to shift the emphasis away from her and towards her father. In tones reminiscent of her disturbing and at times shaky June 23 testimony about her loss of control over her life, career, music, and even her own body, the singer said, “Investigate him.”

Before the hearing, the younger Spears informed the court that she is okay with co-conservator Jodi Montgomery continuing to manage her medical and personal matters for the time being.

Montgomery’s request for 24/7 protection at her home and workplace, which has been met with opposition by Jamie Spears, will be discussed at a newly scheduled July 19 hearing.

 The former Princess of Pop may have a new lawyer, but the contentious conservatorship that governs her life, career, and $50 million wealth isn’t going anywhere anytime soon.

An emotional Spears told Judge Brenda Penny on Wednesday that she was “here to get rid” of her estranged father and co-conservator Jamie Spears, after aggressively stating on June 23 that she thought “this conservatorship is abusive” and “I would honestly like to be allowed to sue my family.”

“I want to charge him with conservatorship abuse,” the 39-year-old singer continued.

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The much-anticipated hearing on the restrictive 13-year-old contract turned into a multi-ring circus — in and outside Los Angeles Superior Court — following the blistering testimony of the ‘Toxic’ singer last month and crucial resignations of managers and more, submissions and battles of new lawyers, and pricey security requirements in the last two weeks.

Since that testimony, many of the central figures in the complex and controversial network installed to manage Spears’ affairs have distanced themselves.

Samuel Ingham, the lawyer appointed by the court soon after her breakdown — asked to step down from his role.

So, too, has the financial management company that was set to assume joint control of Spears’ estate with her father Jamie, who remains in place despite a petition filed last year for his removal.

Penny accepted both those requests on Wednesday.