Lady of Fortune by Mary Jo Putney

True love crosses all boundaries in award-winning New York Times bestselling author Mary Jo Putney’s captivating historical romance, in which a young countess flees revolutionary France for London, becomes a maid, learns about life downstairs, and finds unexpected love.
A countess turned servant . . .
Forced to escape the French Revolution, resilient young Comtesse Marie-Christine D’Estelle flees to London. But when she finds herself unexpectedly penniless, Christa hides her aristocratic background to become a lady’s maid. . . . Until rebuffing advances from both her tyrannical mistress’s husband and her lover gets Christa cast into the street—directly into a hero’s arms . . .
A Royal Navy commander . . .
After a long absence, Captain Lord Alexander Kingsley has returned to England on medical leave. Now head of his family, he must take charge of his younger siblings. He feels a special duty to his sister Annabelle, a shy debutante in need of a maid. So Alex is delighted to discover that the intriguing, outspoken, and lovely young woman who serendipitously landed in his arms is in need of just such a position . . .
The heart of a household . . .
With her warmth, charm, and surprisingly refined intellect, Christa soon wins the hearts of all the Kingsleys—especially Alex. And while their mutual attraction deepens to something more, the gap in their social stations seems an impossible obstacle. Only when Alex and Annabelle become the targets of fortune hunters, will the truth about Christa have a chance to be revealed. But will it mean a chance for true love to triumph?