Britney Spears isn't the only one who wants to remove her father Jamie Spears as her conservator.

The singer's personal conservator Jodi Montgomery and doctors want him stopped from controlling his daughter's life and estate.

In a new court filing this week Montgomery supported Spears' demand her father be replaced with certified public accountant Jason Rubin. Her doctors stand by this.

"[Jamie] should not continue to act as the conservatee's conservator of the estate, because his doing so is not in the best interest of the conservatee," the filing read, according to People. "Because the paramount concern for this conservatorship is doing what is in the best interest of the conservatee, the petitioner hereby joins the conservatee in the removal petition."

Montgomery said Spears' medical team agreed it wouldn't be in the best interest of the Princess of Pop to have her father as conservator. He then described Rubin as someone more "qualified" to replace her father.

Montgomery believes it would be in Britney's best interests if her request to remove her father was granted. He has requested this in the appointment petition.

This latest court filing follows Spears' request to replace her father as her conservator after 13 years of his controlling her life and finances, the BBC said. Her lawyer Mathew S. Rosengart made that petition Monday - describing his client's conservatorship as "Kafkasque nightmare."

He also asked for Rubin to be Britney's new estate conservator. The entertainer's estate includes $2.7 million in cash and more than $57 million in assets.

According to his website, Rubin's expertise is handling complex trust portfolios and cases involving the elderly's financial exploitation.

Father Jamie has been Spears' conservator since 2008. At the time, he asked the court to put the pop star under legal guardianship after a public turmoil in 2007.

He remains the conservator of her estate - which means he can control financial decisions. On the other hand, Montgomery is the conservator of her person, who manages her day-to-day well-being and consults her doctors.

Montgomery and Rosengart's latest moves are a big step toward her freedom. She previously told a judge she wanted to sue Jamie for "conservatorship abuse."