Maid in Stone by Viola Grace

Life started awkwardly and became a game of survival for Kiala. Hunted by the Assassins Guild for her parents’ illicit union, their little family ran from planet to planet until Ki put her foot down. She performed the entry exam for the Assassins Guild and sold her services to them for five years.
When her years as a bodyguard were up, she tried to work as an auditor, an investigator, and attempted to find her place in world without danger around every corner. The Citadel made her an offer, and she agreed to time as a sidekick to a recruiter.
When the contract is up, she is given another choice, another chance and another fresh start. Seeing a familiar face is the first shock of many as she works as a Citadel liaison in Nyal space.