Pack Justice - R. J. Blain - Bog

Sean's guardian angel is a feline, but his spirit cheetah prefers rival attorney, Andrea Morgan, over him. Trapped in a failing, dangerous marriage and stalked by an accomplice of one of the most dangerous criminals he's ever prosecuted, Sean's troubles are just beginning.
A vacation should have offered him a chance to save his relationship with his wife, Idette. Instead, Sean learns he isn't the only one with a secret, and his discovery of his wife's true nature should have killed him.
To ensure Sean's survival, his cheetah strikes a bargain with a wolf. Faced with life-long enslavement to his wife, becoming an instrument of pack justice seems like the far better alternative.
Unfortunately, pack justice is as brutal as it is swift, and should Sean fail to put an end to Idette's machinations, everything he values will be targeted and destroyed, including his chance to be with the one woman who might be able to help him salvage the ruins of his life.