Hexmaker (Hexworld Book 2)

A straight-laced policeman. A lighthearted thief.
A murdered millionaire.
Fox shifter Malachi steals for one of the biggest crime rings in New York City. But when he witnesses the murder of a millionaire, the only person who can keep him safe is Dr. Owen Yates, forensic hexman for the Metropolitan Witch Police—and Malachi’s witch.
Owen is horrified to discover his familiar is an uneducated thief. Even worse, Malachi threatens to unleash Owen’s deepest desires…desires Owen can’t act upon, as he’s destined for an arranged marriage to secure the Yates family fortune