Love On The Run by Diane Culver

Katherine Hallock has discovered her father and soon to be husband have embroiled her beloved Hallock Farm in working with the Russian mob. Her only reaction is to flee to the one person who can help - the Director of the CIA, her aunt and her father's estranged sister. Elizabeth agrees to hide Katherine and help her right the wrong created, but Elizabeth has two sides – a crime solver and a matchmaker. She sends "Lizzie O'Brien" to Special Agent John Clinton's farm in Virginia to hide, but also hopes her niece and John will find their own happily after ending.