She may soon get her wish after the judge in the case said she could hire her own lawyer, former prosecutor Mathew Rosengart, who plans to file paperwork soon to end the conservatorship on her behalf. To terminate a conservatorship, California law simply requires the filing of a petition demonstrating that it is no longer required.

Spears' case is unusual: Conservatorships are typically not imposed on someone who doesn't have severe cognitive impairments, and Spears has toured the world, released four albums and earned US$131 million, all while deemed legally unfit to manage her finances or her own body.

But while Spears' case does illustrate how easily conservatorships can be abused - which is one reason some members of Congress are considering ways to reform the state-run system.

Conservatorships are legal arrangements that give a third party control over someone else. They can be imposed only by a court, and only a court can terminate them. The person put in charge of the person's affairs is called the conservator, or the guardian in some states.

Conservatorships have been around for centuries and are critical legal mechanisms to help people - often older persons with dementia or other neurocognitive disorders - who are considered unable to care for themselves or their finances.

Conservators are subject to court oversight and are typically required to submit annual reports to the court. And California law - which is similar to the rules in most states - requires the court to monitor each conservatorship to protect against abuse and ensure that the conservator is acting in the best interests of the subject.

Jamie Spears has been a conservator for his daughter since he was appointed to this role by a California court in 2008 and has reportedly received at least $5 million in fees.

He has served as both the "conservator of the person" - able to make decisions about his daughter's personal needs, including medical decisions - as well as that of her estate - able to make financial decisions for her. Currently, he serves only in the second role, while Jodi Montgomery, a licensed personal fiduciary and care professional, is Britney Spears' conservator of the person.

While the standard in many states is to impose the fewest restrictions so the person retains the most rights possible, the powers of a conservator can be broad. And the person subject to one may lose the right to marry, make a will, vote or consent to medical treatment.

And imposing a conservatorship is not supposed to be easy. California requires "clear and convincing evidence" that one is necessary. The law also states that the individual has the right to be represented. The one imposed on Spears, however, was done quickly.

Broad powers and "anemic" oversight make conservatorships subject to multiple forms of abuse, ranging from the imposition of unnecessary restrictions on the individual to financial mismanagement. Nothing can be done if no one finds out about the abuse.

A 2010 US government report identified hundreds of allegations of physical abuse, neglect and financial impropriety by conservators. Most of them related to financial exploitation, and that, in turn, often meant that the victim's family was affected, losing not just expected inheritances but also contact with the person subject to the conservatorship.

The National Center for State Courts estimated in 2016 that 1.3 million adults in the US are subject to some kind of conservatorship - representing about $50 billion in assets - but a previous report suggested the number of cases could be more than double that.

There's virtually no data on how often conservators misuse their power or when a conservatorship has been improperly imposed.

However, this may begin to change, thanks to growing publicity of the issue.

Last year's Netflix movie I Care a Lot told the story of a fictionalised abusive guardian played by Rosamund Pike, who won best actress at the Golden Globe for the role. And a 2020 episode of the investigative series Dirty Money profiled what it alleged was guardian abuse by several lawyers, including one who later filed a defamation lawsuit.

And in February 2021, The New York Times aired Framing Britney Spears, which documented her struggle under the conservatorship. Now, members of Congress as ideologically opposed as Texas senator Ted Cruz and Massachusetts senator Elizabeth Warren have joined the "Free Britney" cause and are pushing for conservatorship reforms and more data on the legal arrangements.

While states have made some improvements, such as urging more autonomy for conservatees and less restrictive alternatives to conservatorships, reform advocates such as Syracuse law professor Nina Kohn say more is needed to protect the rights of individuals and prevent abuse, including stronger oversight.

Spears may soon find herself free of her conservatorship. Regardless, her situation has already put a spotlight on the potential for abuse - and it may lead to a better system for those who genuinely need the assistance.