Tremaine’s True Love by Grace Burrowes

Tremaine St. Michael is firmly in trade and seeks only to negotiate the sale of some fancy sheep with the Earl of Bellefonte. The earl’s sister, Lady Nita, is pragmatic, hard-working, and selfless, though Tremaine senses she’s also tired of her charitable obligations and envious of her siblings’ marital bliss.
Tremaine, having been raised among shepherds, can spot another lonely soul, no matter how easily she fools her own family. Neither Tremaine nor Nita is looking for love, but love comes looking for them.