Gunpoint — Erin M. Leaf

Soul-bruised and bitter, Charlie left the military for peaceful solitude. When he's mugged at gunpoint, his isolation is shattered, because the guy with the weapon is his mate, and Charlie's falcon insists on truth: the other half of his soul is a desperate man who doesn't know he's a shifter.

Warren has no money for rent, his sister's ex beat her bloody, and he's working double shifts to survive. He thought his life couldn't get any worse, but then he mugs an ex-soldier who somehow turns the tables and offers him something impossible: hope.

Of course, nothing is that simple, and Charlie's resistance to their bond sabotages their relationship before it really begins. Warren can handle hardship, but now his enemies are bigger than the bully next door, and he's broken the darkest taboo of the Sky Hunter falcons. Only Charlie can save him, but can a damaged ex-soldier save himself, too?