A “vigorous investigation” into Mr Spears’ conduct will continue, says her legal team, who accuse him of reaping “millions” from her estate over the last 13 years.
Britney Spears’ father has agreed to relinquish control of her $60m (£43m) estate.
The pop star’s lawyer has described Jamie Spears’ decision as “vindication” and a major victory for the singer.
Mr Spears has served as the conservator of her estate for 13 years, but she has been campaigning for him to be removed from this role for several months.