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L.A. Ruthless Books in Order

Part ofSadie Kincaid Books in Order

See all the L.A. Ruthless books by Sadie Kincaid in order, with quick summaries, series background and reading tips for this dark Montoya mafia romance set in Los Angeles.

Last updated: December 22, 2025

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Publication Order

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4 books

1

Fierce Obsession

by Sadie Kincaid

2022

Years after claiming her, Jackson Decker is the perfect husband and father, but happiness with Lucia Montoya paints a target on their backs. Old enemies and twisted obsessions threaten the Montoya empire—and the fragile peace they’ve built.

2

Fierce Betrayal

by Sadie Kincaid

2022

Lucia Montoya has grown up in the shadow of her father’s cartel and the forbidden pull of his right-hand man, Jackson Decker. When danger forces them to hide at his Texas ranch, loyalty, desire and betrayal collide.

3

Fierce Queen

by Sadie Kincaid

2021

Now firmly the queen beside L.A.’s most feared kingpin, Alana Montoya has everything to lose. As enemies close in and old wounds reopen, she and Alejandro must decide whether their explosive marriage is worth burning their city for.

4

Fierce King

by Sadie Kincaid

2021

On her wedding day, Alana Carmichael marries ruthless kingpin Alejandro Montoya to save her father, not for love. Trapped in a marriage she never wanted, she fights him even as attraction, secrets and violence drag her closer.

Series background & context

Set in the sun-bleached but dangerous streets of Los Angeles, the L.A. Ruthless series follows the Montoya crime family as they rule their empire with equal parts charm and brutality. These books sit firmly in dark mafia territory: forced marriages, blood oaths and family loyalty crash into genuine, hard-won love.

This is not a gentle version of Los Angeles.

It all starts with Fierce King, where Alana Carmichael is forced into marrying Alejandro Montoya to save her father’s life. On paper he is everything she should want—rich, powerful, devastatingly attractive—but Alana knows she’s being traded, not courted. Watching her push back against a man everyone else fears sets the tone for the whole series.

In Fierce Queen, that marriage of convenience has become something more complicated. Alana has taken her place at Alejandro’s side, but being queen to the King of L.A. means navigating rival cartels, old grudges and the fallout from both of their pasts. The romance is as much about trust and forgiveness as it is about obsession and heat.

The later books, Fierce Betrayal and Fierce Obsession, turn the spotlight onto the people orbiting Alejandro and Alana. Jackson Decker, the king’s tattooed right-hand man, falls for the one woman he should never touch, while long-running tensions inside the Montoya family explode into open conflict. Ranch hideaways, childhood trauma and second chances all play a part.

Everybody bleeds for the people they love here.

Although each romance stands on its own, the series is designed to feel like one continuous saga. Side characters from earlier books grow into leads, quiet comments in the background pay off several novels later, and the Montoyas’ war with their enemies threads through everything. Expect explicit heat, brutal confrontations and a constant sense that happiness has to be fought for.

Readers who love Sadie Kincaid’s interconnected universes will also spot links to her other Ruthless series. Names drop, alliances are hinted at and occasionally familiar faces from New York or London wander through Los Angeles. L.A. Ruthless works perfectly well on its own, but it also acts as a bridge into the larger web of families, cities and dangerous men that runs through her work.

Edited by

Richard Reis

Software engineer whose passion for tracking book recommendations from podcasts inspired the creation of MRB.

Anurag Ramdasan

Lead investor at 3one4 Capital whose startup expertise and love for books helped shaped MRB and its growth.

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All 4 L.A. Ruthless Books in Order (Complete List 2026)