25 Best Marriage of Convenience Mafia Romance Books

Marriage of convenience is the mafia romance trope that does all the hard work for you: it forces two people who wouldn't otherwise choose each other into the same house, the same bed, and the same secrets, then dares them not to fall. These 25 books lean into that setup in different ways — arranged alliances, debt marriages, fake engagements gone real — and they're ranked here using real reader ratings, not just cover appeal.

Want the trope breakdown first? Read Marriage of Convenience to Real Devotion.

1. Heartless Sinner — Faith Summers & Khardine Gray

A debt-driven union between two dangerous families that starts cold and turns possessive fast.
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2. Fearless Sinner — Faith Summers & Khardine Gray

The follow-up that pushes the same couple's arrangement past survival and into real devotion.
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3. Kingpin's Baby — Evie Rose

A marriage-of-convenience mafia romance with an unplanned pregnancy raising the stakes on an already fragile alliance.
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4. The Devil and Her Details — Mina Myles

A sharp, reluctant bride matched against a mafia husband who underestimates her at his own risk.
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5. Double Trouble for the Mafia Prince — Lisa Cullen

Secret twins collide with a marriage-of-convenience setup for a plot that keeps raising the pressure.
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6. Irish Vice — Alix Key

A Jane Eyre-inspired billionaire mafia romance built around a marriage that starts as a business arrangement.
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7. The Debt Collector — B. Lybaek

Part of the Russo Mafia series, pairing a hard-edged enforcer with a bride bound to him by an old family debt.
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8. Gamble of the Mafia Fixer — Rica Lane

A fake-engagement-turned-marriage of convenience from the Costa Vendetta series, with a fixer who has more to lose than he admits.
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9. The Don's Daughter — D.C. Beks

An arranged match between rival mafia lines where loyalty and attraction keep getting tangled together.
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10. His Unwanted Wife — R.T. Singh

The opener to the Mafia Brides series, following a bride handed over as a replacement in someone else's deal.
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11. Taunting the Billionaire — Ginny Sterling

A billionaire mafia marriage of convenience where provoking each other becomes its own form of foreplay.
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12. His Replaced Bride — R.T. Singh

Continues the Mafia Brides world with another forced union and a hero who doesn't plan on staying detached.
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13. The Capo's Nymph — Eileen North

Pairs an age-gap dynamic with a marriage of convenience in the Vows Sworn in Blood series.
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14. His Rejected Wife — R.T. Singh

A marriage built on rejection that the story slowly, deliberately undoes.
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15. AFFIANCE — Ainsley Vaughn

Part of the Questionable Vows series, centered on a marriage negotiated more like a merger than a romance — at first.
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16. Poisonous — Chetna Gupta

From the Crimson Vows series, a dark, slow-burn arranged marriage between two people trained not to trust anyone.
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17. His Reluctant Bride — R.T. Singh

Another entry in the Mafia Brides series, leaning into a forced-wife setup with a possessive hero arc.
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18. The Mafia Diplomat's Bride — Daphne Monroe

A politically motivated marriage of convenience that puts the couple in the middle of mafia diplomacy gone wrong.
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19. His Arranged Bride — Madhuri Singh

The start of the Sacred Vows series, a slow-burn arranged marriage set against Indian mafia politics.
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20. Fixated — Chetna Gupta

Continues the Crimson Vows series with an arranged wife whose husband becomes dangerously obsessed.
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21. Dark Desires: Married to Mafia Prince — Madhuri Singh

A politically arranged marriage that starts as an obligation and turns into obsession on both sides.
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22. Revolver's Mafia Marriage of Convenience — Mary Potter

Part of the Santoro Graveyard Empire series, pairing a marriage pact with an already violent family history.
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23. Maid for the Mafia Heir — Mari Mendoza

A shorter, quick-burn entry in the Kalleraya Mafia series built entirely around a convenient, complicated marriage.
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24. The Kingpin's Contract — Alisson Bento

A marriage negotiated like a business contract, with a kingpin hero who didn't expect to want more than the terms.
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25. Secretary for the Mafia Heir — Mari Mendoza

Another Kalleraya Mafia short pairing a workplace dynamic with a marriage-of-convenience twist.
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Looking for more?

Browse the rest of our Best Books lists, or read the trope essays in Tropes to find your next favorite dynamic.

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