Ranger Redemption by Lynn Shannon

Some secrets are worth killing for…
Criminal defense attorney, Megan Hunt, is determined to appeal her brother’s murder conviction. It’s a long shot, but she has to try–it’s her fault he’s in prison. After her aunt leaves a cryptic voicemail claiming she’s discovered new evidence, Megan returns home. She’s been warned to come quietly and trust no one, including her unforgettable ex-fiancé, Luke.
Texas Ranger Luke Tatum worked with the sheriff to arrest Megan’s brother using information she gave him. That one decision destroyed their relationship. Seeing her again rips open old wounds and ignites feelings he thought had long faded, but he won’t allow them to interfere with his investigation. Megan’s aunt was nearly killed in a car accident, and Luke suspects it was staged.
Determined to uncover the truth, Megan searches for the evidence and is attacked. She’s forced to accept Luke’s protection, even if being close to the handsome lawman threatens the carefully constructed walls around her heart. Yet the secrets surrounding the case are far more sinister than Megan or Luke imagined, and exposing them could prove deadly.