THE SUBSTITUTE COUNTESS/A STRANGER'S TOUCH

The Substitute Countess by Lyn Stone
Jack Worth lives a life of roguish adventure, money-making schemes and ever-changing women. He'll be damned if he'll settle down and find a wife...until he inherits a noble title and estate - but without the riches.
Distant cousin Laurel is the unwitting heir to all the money. Brought up in a Spanish convent and longing for a family of her own, she's prepared to enter into a marriage of convenience. Finding a home in Jack's arms is more than she could have dreamt about, but deception and mistaken identities test her new-found love to the limit.
A Stranger's Touch by Anne Herries
When Morwenna Morgan defies her brother's orders and rescues a shipwrecked victim from the Cornish beach, she doesn't expect an instant attraction to the injured stranger. This is the kind of man she can imagine falling for - not the unpleasant suitor her brother's forcing on her!
Except the stranger is Lord Rupert Melford, a government agent sent to entrap the Morgan family! He has to believe that Morwenna is part of a smuggling plot, but her sweet nature and devotion to nursing him speak only of her innocence...