"She articulated she feels the conservatorship has become an oppressive and controlling tool against her," a court investigator wrote in a 2016 report, according to the Times.
The report noted that the arrangement dictated the majority of her life decisions, down to who she dated and the color of her kitchen cabinets.
The investigator added, "She is 'sick of being taken advantage of' and she said she is the one working and earning her money but everyone around her is on her payroll."
Spears's father is among those people. Besides his conservator salary, which currently amounts to about $16,000 per month plus $2,000 additional for a monthly office space, Jamie Spears received a cut from his daughter's various deals, the Times notes.
A judge granted Jamie Spears conservatorship over Britney Spears in 2008 after the pop singer began struggling with mental health and substance abuse. What was initially deemed a temporary, emergency solution has been in place ever since.
In recent years, fans questioning the necessity and extent of control involved in the singer's conservatorship sparked the "Free Britney" movement. While the singer remained quiet about the situation publicly, she had been petitioning behind the scenes for its end.
The court records obtained by the Times show that Spears had been trying to remove her father from his role due to concerns over his drinking, among other reasons, as early as 2014.
In the latest development over the conservatorship case, a judge ruled in February that Jamie Spears did not have the sole power to delegate the singer’s investments. On Wednesday, Spears is set to appear in court in Los Angeles to continue hearings, according to the Times.
Despite Britney Spears's reported ongoing objections to the arrangement, her father has insisted that his actions were always for the benefit of his daughter.
"Like any parent, he doesn't always see eye-to-eye on what Britney may want," his attorney Vivian Lee Thoreen told CNN. "But Jamie believes every single decision he has made has been in her best interest."