A Relative Matter — Karen Cogan

In this sweet Regency romance, life in India is idyllic for Anne Tyler and her younger brother, Jeremy until the deaths of their parents shatter their world. They are sent to England to live with a grandfather that neither remembers. However, as the years pass, the kindly man proves a balm for their wounded hearts. His death, when it comes, is a cruel blow.

Though his will leaves the estate to Jeremy, the boy is not yet of age. His grandfather's nephew, a man with a mysterious past, is named guardian of the property
and soon arrives to take up his duty. Unfortunately, the man has a son who is both evil and cunning. Since he stands to inherit the estate should Jeremy die, he will stop at nothing to get his hands on the property.
Murder and threats of murder soon haunt their every move. Standing between them and disaster is the handsome Lord Westerfield, a man who promises to defend Anne and Jeremy, even at risk to his own life.