US Weekly reports that Britney is requesting that Bessemer Trust Company be the sole conservator of her estate from now on.They have been co-conservator with her father as the second party since last month.Jamie had hired a replacement for Tristar Sports and Entertainment Group when they suddenly resigned from the role of business manager without consulting his daughter.Michael Kane of Miller Kaplan was hired on November 1 and Britney claims that she was not advised on the terms of his employment nor his fees.The documents read: ‘The October 28 letter is a blatant attempt by JAMES [Jamie Spears] to retain full functional control of her assets, books and records in the face of Britney’s objections, Tristar’s resignation and the appointment