Hillside Encounter — Shelagh McEachern

Julie wanted nothing more than to hate Andrew Tracklin the first time he dropped out of the sky and into her life in his company helicopter.
In a case of mistaken identity, she thought this handsome stranger was a cold-hearted businessman with plans to spray noxious chemicals for pest control all over Desolation Sound, the haven where Julie's sister and her family had made a home far from the troubles of civilization.

Andrew, intrigued by this `hellcat' who takes an immediate and unexpected disliking to him, does not realize that she, like him, has made her home in the city and is only on Desolation Sound for a short time helping her sister recover from a serious accident.

As time passes and secrets and false assumptions come to light, Julie realizes that Andrew's heart is far from cold, and Andrew sees the successful woman for what she really is, and grows to love her even more.