Hearts of Trust by Ellie St. Clair

After nearly ruining a young woman of the ton, well-known rake Benjamin Harrington is sent to manage his father’s floundering country estate. Determined to prove himself, Benjamin must fight the temptation presented by his beautiful new maid, who quite literally stumbles into his path.
Sophie Carmichael was devastated by the death of her parents in a carriage accident and was placed under the care of her cousin, the Earl of Dunstable. The Earl soon makes known his wicked intentions toward her, and Sophie must flee, taking on the disguise of a servant.
Sophie finds herself falling for her new employer, but when he invites a friend to his estate, Sophie must determine whether to tell the truth and risk discovery by her cousin, or face the risk of being caught in her lie.

What will win out — duty, trust, or love?