Baksheesh (Bribes). Book 5 of the Spies Lie Series

A covert operative is ready for a new life outside of international espionage. But her enemies are far from willing to let her go... She spied for her country, blackmailed her president, and ran from more threats than she can remember. But when the love of her life proposes, covert agent Cassandra Sashakovich is finally ready to settle down. Unfortunately her past is not quite ready to let her walk away. Old enemies-including a vengeful president-want her dead, and they're willing to attack her loved ones, including her adopted teenage daughter, if that's what it takes. But Cassandra has other pressing problems-a world leader is assassinated and an arm dealer's revenge threatens to lead to nuclear war. Now Cassandra and her security firm, Swiftshadow must defuse the threats and find a way to outmaneuver those who threaten not only her family, but her country as well.