At another hearing today, Britney was granted permission to have Mathew Rosengart as her new lawyer and he's set to file documents requesting her father Jamie is removed from his post as co-conservator of her affairs.
And Sam is hopeful major progress can now be made.
He tweeted: "This is a premature celebratory post but for now there's a new sheriff in town and heads are about to roll. The war may be coming close to ending but the healing is a tremendous journey that has yet to even begin. God bless the entire army. I love all of you."
Jamie and his ex-wife Lynne previously accused Sam of having "drugged" Britney and cut her phone lines after he took "control of her life, home and finances" when he moved in with her.
The Womanizer singer was granted a temporary restraining order against her former manager in February 2008, the month her conservatorship began.
In June 2019, a year after the first court order expired, Britney obtained another court mandate ordering Sam to stay away after claiming he had caused "severe mental trauma" by threatening and disparaging her family.
However, the Svengali - who received a settlement in 2016 after suing the Spears family for defamation years earlier - maintained his innocence and insisted he had not made contact with the 39-year-old pop star for a decade.