Danielle Steel 
One Day at a Time 

Coco Barrington is the black sheep of her unusual Hollywood family. Having dropped out of law school, she works as a dog walker in North California. Her widowed mother, mega-bestselling author Florence Flowers, has just begun a secret romance with a man twenty-four years her junior, and her sister, Jane, one of Hollywood”s top producers has lived with her partner, Liz, for 10 years
When Coco reluctantly agrees to house-sit in Jane”s luxurious home, she discovers how much things can change in just a matter of days. Jane”s house comes complete with an unexpected houseguest: Leslie Baxter, a dashing but down-to-earth British actor who”s fleeing his psycho ex-girlfriend. Their attraction is immediate.
Suddenly Coco is seeing things differently…