A Lady of Expectations
First published by Harlequin in 1995
This work remains under license to Harlequin, and goes in and out of print, or even e-book availability, but is frequently re-published or reissued in various forms, through various avenues, in various markets, at various times. Please note you may come across a publication that combines two or more of the original books, within the same volume, under a different title, or even combines one of Stephanie's books with works of other authors in a combined volume - again often with a different title.
The jacket blurb from the original UK edition:
"What Jack Lester wanted in a wife was someone rather like his sister, Lenore - attractive, capable, someone he could converse with. Impossible, given the debutantes he had seen over the past few seasons! Yet it was essential that he make his choice before the society matrons discovered that the Lesters were no longer poor as church mice."
Check your favorite on-line stores for print or e-book reissues.