Who is Mathew Rosengart? Britney Spears' new lawyer represented Ben Affleck, Keanu Reeves

Formal federal prosecutor Mathew Rosengart will fight for Britney Spears now and had once won a defamation case for actor Sean Penn

                            Who is Mathew Rosengart? Britney Spears' new lawyer represented Ben Affleck, Keanu Reeves
Britney Spears has appointed Mathew Rosengart as her new lawyer (Photo by Jamie McCarthy/Getty Images, Greenberg Traurig)

As Britney Spears continues to fight the legal battle on the issue of her conservatorship, she has secured celebrity attorney Mathew Rosengart as her new lawyer. Rumors about Rosengart representing Britney had been doing rounds for quite a while, especially after her court-appointed lawyer Samuel Ingham filed papers for resignation. The 'Toxic' singer reportedly requested for Mathew Rosengart specifically and he agreed.

The formal federal prosecutor, who works with the firm Greenberg Traurig, would reportedly attend court on Wednesday, July 14, 2021, to represent Britney. However, Rosengart has to ask the judge to formally appoint him since Britney cannot sign a legal contract without her father's permission, which puts her in a catch-22 situation. It is believed that the judge would be hearing more of Britney's story — in her bid to remove father Jamie Spears from her conservatorship


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In a signed document, Britney requested Rosengart as her attorney, stating "Pursuant to my statement in open court on June 23, 2021, my rights, and my desire to end the above-referenced conservatorship as to my father Jamie P Spears, it is my desire to choose and retain my own counsel, at Greenberg, Traurig, LLP as set forth above."

Who is Mathew Rosengart? 

Mathew Rosengart is a well-known name in the celebrity circle, as he has represented tons of A-lister Hollywood celebrities so far. His impressive list of clientele includes Sean Penn, Ben Affleck, Keanu Reeves, Steven Spielberg, Eddie Vedder, Winona Ryder, NBA player Jimmy Butler, Julia Louis-Dreyfus, and others, some of whom he still represents, according to Variety

He notably won a defamation lawsuit for actor Sean Penn against 'Empire' creator Lee Daniels, who had mentioned Penn's name during a discussion about Terrence Howard's domestic abuse allegations. While Sean tried to sue Daniels for $10 million, the case was ultimately settled by Rosengart with an apology from Daniels and a sizeable donation to Sean Penn's charity.

Britney Spears (Photo by Kevin Winter/Getty Images for iHeartMedia)

In 2019, he also won a $14 million trial for New York hedge fund Sandton Capital against Gold Circle Films, the production banner behind 'Pitch Perfect' and 'My Big Fat Greek Wedding'. Prior to working in the entertainment industry, Rosengart was a federal prosecutor handling a wide range of cases — from "violent crimes to public corruption". He held commendable positions like being the trial attorney for Justice Department’s Civil and Criminal Divisions and the Criminal Division Campaign Finance Task Force.

The cum laude graduate from Boston College Law School would now argue in favor of Britney Spears, how the singer "is entitled to due process, which includes the right to a competent lawyer," according to TMZ.

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