The size of DeMann’s exit package will depend on what value the parties assign Maverick, sources said. DeMann is likely to walk away with at least $20 million to cover his 20% stake in Maverick but could be paid twice that amount before the talks conclude, sources said. DeMann is being represented in the negotiations by financier Jerry Perenchio, a longtime friend. One source said the 59-year-old DeMann is upset because he wants to sell Maverick in July and cash out, but Oseary and Madonna prefer to negotiate for a bigger stake in the company, with plans to sell in six years. Other sources, however, said DeMann is being forced out by Madonna and Oseary–who, until recently, have relied on his expertise to navigate their careers, as well as manage the record label now at the center of the dispute.

Madonna and DeMann launched Maverick in 1992 as a joint venture with Warner, which put up about $10 million to finance the partnership. Initially, the company was viewed as little more than a vanity label–a bargaining chip used by Warner to sweeten its offer during contract renegotiations with Madonna, who is signed to the company as a recording artist. DeMann had pitched the label concept to Madonna, whose career he had managed since her arrival on the pop music scene in the early 1980s. He then built the label from scratch, hired its staff and even came up with the company’s name–a combination of letters culled from Madonna, Veronica (the singer’s middle name) and Frederick (his first name).

One of DeMann’s first hires at Maverick was Oseary, a 19-year-old with virtually no experience in the music business who was a friend of DeMann’s daughter. DeMann took Oseary under his wing and gave him a job as Maverick’s artist and repertoire man, the employee responsible for discovering musical talent. Oseary delivered his first hit in 1993 with the Seattle rock act Candlebox, whose debut album sold 4 million copies. Oseary then came across a tape of Morissette, an unknown Canadian singer whose demo had been rejected by every major record company. He liked what he heard and played it for DeMann, who agreed to sign her to Maverick. The album eventually sold more than 28 million copies worldwide. Following Morissette’s success, Oseary’s profile rose dramatically. The young executive was rewarded with a minority stake in Maverick and tensions soon began to mount within the company, sources said.

In 1996, Madonna dumped DeMann as her manager and ultimately hired Q-Prime’s Cliff Bernstein and Peter Mench to represent her. A friend of Oseary’s is said to have helped facilitate the singer’s move to Q-Prime, sources said. Within a year, representatives for Madonna and Oseary began to lobby Warner for help in financing an exit package for DeMann, sources said. Warner turned the request down last October but resumed discussions with representatives for the trio a few months ago after rumors surfaced that Sony Music might be interested in acquiring Maverick or hiring Oseary and Madonna next year to start a new label, sources said.

It is unclear why Madonna, Oseary and DeMann couldn’t maintain a united front until after their Warner deal runs out in July. The dispute, however, appears to be heating up as Maverick prepares for the Nov. 3 release of Morissette’s follow-up album, one of the most widely anticipated projects of the year. During the last few weeks, executives from Warner have held meetings with Madonna’s attorney Allen Grubman, Oseary’s lawyer John Branca and DeMann’s representatives Perenchio and attorney Larry Kartiganer. While nothing has been decided, sources said the matter is expected to be resolved by the end of the year and possibly even before Morissette’s album hits the street.