Practice Makes Perfect — Julie James

WHEN IT COMES TO THE LAWS OF ATTRACTION...
Payton Kendall and J.D. Jameson are lawyers who know the meaning of objection. A feminist to the bone, Payton has fought hard to succeed in a profession dominated by men. Born wealthy, privileged, and cocky, J.D. has fought hard to ignore her. Face-to-face, they're perfectly civil. They have to be. For eight years they have kept a safe distance and tolerated each other as coworkers for one reason one: to make partner at the firm.

...THERE ARE NO RULES.
But all bets are off when they're asked to join forces on a major case. Though apprehensive at first, they begin to appreciate each other's dedication to the law- and the sparks between them quickly turn into attraction. But the increasingly hot connection does not last long when they discover that only one of them will be named partner. Now it's an all-out war. And the battle between the sexes is bound to make these lawyers how under the collar.