12 Rose Street by Gail Bowen

Joanne's husband, Zack, is running for mayor in Regina, Saskatchewan, and faces an uphill battle against the incumbent, Scott Ridgeway. Joanne is an expert at running political campaigns, having helped her first husband, Ian, become the Attorney General of Saskatchewan many years ago. However, when a local slumlord is murdered, it unearths secrets, political mudslinging, and more violence. Will Joanne and her family be able to escape unscathed? This latest book in the long-running Joanne Kilbourn mystery series further explores the characters' lives, while bringing to the forefront the issue of poverty among the Aboriginal People in Canada.