Even if Tenet drops the securities suit it leveled at CHS in the midst of the takeover battle, allegations in the suit that CHS overbilled Medicare are here to stay.

Delaware Chancellor William Chandler III found "no basis" to disqualify the firm from representing Air Products in a hostile takeover bid for former client Airgas. But the judge declined to decide one key issue.

In a week marked by several strong litigation performances, Nussbaum takes top honors not just because she was lead trial counsel in Kaiser Foundation's $141 million RICO jury verdict against Pfizer, but because she made sure Kaiser got to tell its story of health care scandal.

Last summer Orrick pulled off a near-miracle for the Bratz doll maker, persuading the Ninth Circuit to vacate a company-killing injunction and engineering a new trial with MGA's rival, Mattel. But with the retrial set to begin next week, MGA unsuccessfully tried to replace Orrick with new counsel. Meanwhile, Orrick's most controversial move for MGA--an inflammatory claim that Mattel's Quinn lawyers were part of a coverup scheme--has backfired.

After cycling through nine sets of his own lawyers, Paul Ceglia, the man claiming to own at least half of Facebook, wants a judge to exile Facebook's lawyers at Gibson Dunn and strip them of their fees. Facebook's lawyers, meanwhile, want a judge to force Ceglia to turn over a letter from Kasowitz Benson they say shows once and for all that he's a fraud.