The Darkest Knight by Rhonda Lee Carver

Reese Shane’s life was changed forever when she suffered a traumatic head injury while on duty in Iraq. Three years later, she’s left with epileptic seizures along with a service dog that alerts her to oncoming seizures.
Army Ranger Seth Knight, also known as Dark Knight, isn’t a stranger to danger or trauma. A bomb explosion during a covert mission left him scarred physically and, more importantly, emotionally. With no interest in his family’s fortunes and glamorous social revelries, he has secluded himself on the large property his father left him in the Tennessee hills. He likes being alone, but when a fiery spirit shows up on his doorstep, his peace and quiet gets a makeover.

Reese’s work helping injured veterans is jeopardized when Angelina Knight passes away. She had promised to financially back Reese’s project. Now Reese must turn to plan B: Seth Knight. She’s heard the rumors of the recluse in the mountains and isn’t sure how she’ll convince the angry soldier why he should open his secret haven to veterans when he wants nothing to do with her, or her dreams.
Little does she know, but will find out, that the “Dark Knight” has many layers, and badass isn’t the only one.

Seth thinks he’s agreeing to help Reese, but soon he’ll find out that she is the one saving him…