Books like Not Quite a Wife by Mary Jo Putney

Evangeline Jenner, the shyest of the Wallflower sisters, negotiates a perilous marriage with the notorious Viscount St. Vincent to secure her inheritance and escape traitorous relatives, insisting on a non-sexual union that challenges both hearts.

Isolde Ophelia Goodnight, an 26‑year‑old writer’s daughter, expects romance only in fairy tales until she meets Ransom, the 31‑year‑old Duke of Rothbury, and finds a real love story unfolding in a grand castle.

Nell Trim vows to wrest justice from the seductive Marquess of Leath, knowing she must resist his tempting charms herself.

A witty high‑society romance where an American heiress becomes English duchess after a marriage of convenience, only to challenge her Duke husband to win her heart in ten days.

In Regency England, Madame Helene’s Pleasure House caters to London’s most scandalous desires, where Lord Blaize Minshom’s tumultuous love triangle with his estranged wife Lady Jane unfolds amid brothel intrigue.

When amnesiac Duke Adam awakens after a shipwreck, he finds his forgotten wife Mariah tending his wounds on a desolate beach. Their rekindled love defies both memory and destiny, weaving a perilous yet passionate romance.

In Regency England, a wounded officer with a hidden sorcerous talent must marry a skilled witch to survive, sparking a magnetic and dangerous romance where love and magic collide.

Abigail Beecham, trapped in a loveless marriage, seeks passionate escape in the erotically charged world of the House of Pleasure, where her encounter with slave‑turned‑slaveholder Peter Howard promises intense desire and forbidden pleasure.

Audrianna Kelmsleigh signs up for a mysterious job to clear her father’s name, only to lock horns with his enemy, Lord Sebastian Summerhays, at the Two Swords Inn—leading to a forced marriage, perilous romance, and a fight for justice.

A New York Times bestseller where an arranged marriage turns into a passionate romance after a missing bride is found. In the countryside, the Earl of Hawkeswell and Verity Thompson learn to embrace love over duty.

In a Regency‑era romance, Miss Sarah Clarke‑Townsend swaps places with her pregnant twin, triggering a perilous cat‑and‑mouse chase that pits her against determined kidnappers and a daring Bow Street Runner, Rob Carmichael.

Penelope Weston is swept into a marriage with the haughty Lord Atherton to quell scandal, and must confront her growing attraction to the man she despises as her @ new life begins.

When Lord Grey Sommers is imprisoned in a French dungeon after a forbidden liaison, a daring spy named Cassie Fox launches a perilous rescue mission that forces both to confront their pasts and the fragile line between duty and desire.

When an amnesiac husband returns to his governess wife, she must decide if the man she senses as familiar is truly her lover or a dangerous stranger, risking the heart she thought was safe.

Claire Banning, a beautiful debutante, marries a wealthy nobleman only to discover he is a dissolute wastrel. Forced to take her place in society, Claire is abducted and captured by a dangerous nobleman named Hugh Battancourt who leads a life dedicated to his country's service. When they are separated, Claire realizes she can never be happy with her husband, and Hugh realizes he can never be happy with his captive. Their bond grows stronger, and they are forced to overcome their differences to protect each other from a dangerous enemy.

In London, Dr. Daniel Herbert seeks a sensible wife to manage his inherited estates, only to fall for the enigmatic Jessie Kelham, a widow and single mother whose hidden past threatens to unsettle both their lives.

In Regency England, the boisterous Marquis of Glengask hunts his sister to London, only to be swayed by a sharp‑tongued English lady who challenges his notions of honor and reason.

TWINS Now you see me -- now you don't When her flashy, adventurous, identical twin is killed in a car crash, Tallahassee college professor Kate Jones is left with her twin's infant daughter. Kate knows almost nothing about the little girl's father—just that his name is Mitch and her sister left him because he was "mean." Kate loves her niece, and she'll do whatever is necessary to make sure Arianne is raised happy and healthy. That includes pretending to be her own twin when Mitch suddenly appears, so she can find out what her brother-in-law plans for his child. Mitch Devereaux, a Cajun shrimp boat captain for whom family is all, regrets his unhappy marriage, but he adores his little girl. When his wife flees with their daughter, ignoring a joint-custody arrangement, he tracks her down and hauls her back to Louisiana, determined to have her face a judge. But the woman he abducts is so different from the woman he married. And Kate's captor is so different from the man she'd heard about...

Mary Margaret goes to her father for help paying for her mothers' medical bills..Her Father tells her that he'll pay the bills if she stands in for her sister, Margaret Mary, at her wedding........just until she shows up that evening.....through a series of errors, she is officially married to a man she doesn't know with a blind step-daughter. Story takes place in Boston with lots of lovely info on the city.