Ten Guineas on Love — Alice Thornton

To Charity Mayfield's shock, she discovered a year after her father's death that his debts could mean losing her home. Only by marriage could she touch her inheritance and save Hazelhurst. The one sensible candidate was Edward, newly come into the earldom, and the Mayfields' neighbor. Industrious and desperate, Charity wrote to propose marriage! But she'd made a mistake; the new earl was Jack Riversleigh and he wasn't at all disposed to help out -- which led Charity rashly to bet him that she could find a husband within a month.... Dare she hope that her groom would be none other than the dashing Jack Riversleigh himself?