Inherited Threat by Jane M. Choate

A hazardous legacy – her mother's mistakes have made her a target.

After her estranged mother is killed by a crime syndicate, army ranger Laurel Landry knows she's next...and she needs help from ex-ranger turned bodyguard Mace Ransom. While Mace is used to doing things his way, their best chance of staying alive is relying on each other. Their enemies aren't backing down...but together Laurel and Mace might be able to stop them for good.