We inherited a Cocker Spaniel (in poor health) after the death of a relative. We nursed him and he had a good life for five or six years. After he had to be put down, we both agreed, no more dogs/pets.
Then, about five years ago, we inherited a 2 YO Chihuahua after the death of our 35 YO son. She's a great dog and helps with the grieving.
Oh, we also inherited two young grandsons at the same time. We're raising them and they're all doing well.
Sometimes you need to put the grieving aside and do what needs to be done. Life does go on.:)