"Although the conservatorship was terminated in November 2021, her wish for freedom is now truly complete," said Spears' lawyer in a statement.
The judge will consider a larger, long-term conservatorship at a hearing scheduled for March.
A Los Angeles judge ruled the singer's attorneys hadn't given Elijah Blue Allman and his lawyers the necessary documents in time and set another hearing for Jan. 29.
In a petition filed in Los Angeles Superior Court, the "Believe" singer cites her son's ongoing substance abuse battle.