Beholden

Kathleen O'Sullivan had inherited her mother's pride and her father's grit; her younger sister, Tara, possessed their grandmother's gift of second sight. 

Long Synopsis:

STILL WATERS RUN DEEP ON THE CAROLINA COAST...
Kathleen O'Sullivan had inherited her mother's pride and her father's grit; her younger sister, Tara, possessed their grandmother's gift of second sight.  It wasn't enough to put food on the table in famine-struck Ireland, so Kathleen and her sister fled to America-to the stranger who was their only hope-the man their father had given up his own life to save. 
... AND SO DOES DESIRE
Galen McKnight was far from the fatherly protector Kathleen had imagined.  An irresistibly handsome bachelor, he had sworn off marriage and staked his future on a ramshackle gambling boat.  Now he was faced with two impoverished Irish waifs who needed his help-and stirred his conscience.  As the winds of destiny swept across the Carolina coast, he swore to honor his promise to keep the O'Sullivan girls safe-even if it meant denying the love Kathleen had so passionately awakened. ...