My family has two dogs named Nori and Professor. Sometimes we could use a dog sitter for our pups to be with when we're unavailable to be with them during the day/night.

Nori is 4yo and a very friendly Shitsu Yorkie (Shorkie)
Professor is 17yo. and a sweet old Chihuahua mix doggie

Professor is in great health aside from his hearing is on the older side, he can hear but might need for commands to be louder. He also has cataracts in both his eyes so he relies heavily on his smell for walks and new environments, so more confined areas is better for him.

For both dogs we mix their wet and dry food. They eat normally around 8/9am and then at 6/6:30pm daily. They eat separately as to not get into each other's meals.

Both can handle go on 20min-30min walks together 2-3 times a day. In the morning walk before breakfast, and after dinner walk usually 30min-1.5hrs after dinner to empty out their stomachs.