Britney Spears is no longer represented by the attorney who helped her out of her 13-year conservatorship. The ‘Toxic’ hitmaker hand-picked lawyer Mathew Rosengart in July 2021 as she looked to bring an end to the conservatorship, which he achieved in just four months when Los Angeles County Superior Court Judge Brenda Penny granted the petition in November 2021. He remained Britney’s attorney over the past three years to tie up legal loose ends, but he has now confirmed he isn’t representing her anymore. In a statement, he told The Hollywood Reporter: “It has been an honour to serve as Britne…