The Princess and the Pee by Daniel Boey

Sasha is a shy, sweet, dainty little dog with the most beautiful set of eyes who was afraid of everything. She was scared of loud noises and stuffed toys. She was even afraid of the soft comfy bed that her humans bought her. She also had a strange habit. She would pee everywhere — in the kitchen, in the bedroom, on the balcony, in the study. She even peed on her bed. Nobody knew why. This is the tale of an ex-breeding dog, who had never experienced life in a home, who did not know what a bed, a toilet or a dining area was and how she was schooled by the princess Leia (herself an ex-breeding rescue) into the fairest lady who became the belle of the ball. A book in the Furry Tales by Leia series.