Concierge Confessions The Concierge Mystery Series - Book 1 by Valerie Wilcox

The BellaVilla condominium in a wealthy Seattle suburb offers every luxurious amenity imaginable for its privileged residents. When recently down-sized engineer Kate Ryan is hired as concierge, she is determined to gain the approval of the rich and powerful residents and her condescending boss. Her success is jeopardized by the dubious behavior of fellow concierge, the young and sexy Carla. The woman's fling with BellaVilla's richest bachelor is bad enough but when he is found stabbed to death, working at the ritzy complex takes an ominous turn.