The country guesthouse
(Book)

Series numeration from www.goodreads.com.

"When her best friend died suddenly, Hannah became guardian to a five-year-old named Noah. With no experience at motherhood, she is terrified that she's not up to the challenge. She and Noah need time to get to know each other, so she decides to rent a country house with stunning views on a lake in rural Colorado. When they arrive at the house, they are greeted by the owner, a handsome man who promises to stay out of their way. But his clumsy Great Dane, Romeo, has other ideas, and Noah immediately bonds with the lovable dog. As Hannah learns to become a mother, Owen Abrams, who is recovering from his own grief, can't help but be drawn out of his solitude by his guests." --,(Source of summary not specified)