Cure for Heartache — Patricia Robertson

Dr. Lisa Hallman had never expected to see Bruig again after her parents had divorced, and was astonished when she learned her father had willed it to her, along with a sizeable chunk of money. It was unfortunate that the first person she encountered on her return was Dr. James McKinnon, heavily disguised as a ferryman, whom she managed to physically injure!
When James discovered that Lisa now owned the island, he had no idea what effect this would have on Bruig's medical facilities, particularly if Lisa turned out to be as ruthless as her father…