Stiletto justice / Camryn King.

Enhanced descriptions from Syndetics:

Lifestyle-wise, the three women this title focuses on couldn't be more different. One is a successful businesswoman used to life rewarding her for playing by the rules. One is a struggling single mother who life has never rewarded, no matter how hard she's tried. The other is a rebel, totally unconcerned with whether deserved signs of success are handed to her or not. The three do have something in common though: all are seeing a man who has been given an unjust prison sentence by Hammond Grey, and none of them can stand by and watch Hammond continue to climb the legal ladder.

Reviews provided by Syndetics

Booklist Review

Kim, Jayda, and Harley became close while working together for Women Helping Innocent Prisoners (WHIP), the organization Kim started after her son, a promising young athlete, was put away for a crime he didn't commit. Jayda and Harley have boyfriends and family in the same prison; all these innocent men were victims of overzealous district attorney Hammond Grey. Now Grey's running for U.S. senator in Kansas, with a symbol for a platform: a giant broom, because he's going to clean up crime in his state and then the country, when he makes his way to the White House. When the women have reason to suspect Grey is also profiting handsomely from the private prison where he sends undeserving men, they hatch a plan to expose him and free their innocent men. Although details slow the pace of King's debut, it offers clear-cut heroes and villains in a thought-provoking takedown of the $70 billion commercial-prison industry. Readers might find it's just the right time to read about women fighting injustice and one despicable man together.--Bostrom, Annie Copyright 2018 Booklist