Animating Maria - M. C Beaton

If you have a wild, unruly, or undisciplined daughter, two ladies of genteel birth offer to bring out said daughter and refine what may have seemed unrefinable. We can make the best of the worst. Amy and Effy Tribble place this advertisement in the Morning Post and hire themselves out as chaperones to prepare difficult young misses for marriage, educating them in their School of Manners.
Maria Kendall is beautiful, delightfully mannered, graceful and the Tribble sisters think they will have no problem securing her a duke. They have not, however, reckoned on her boorish, vulgar parents...