What to ask a dog care professional?

When you are choosing a dog care professional, make sure you get satisfactory answers to questions like:

How many years of experience do you have?
What is your training and education?
How many dogs do you take care of at one time?
What happens when the walker goes on vacation?
What safety measures do you take?
How do you take care of an emergency situation?
Are your walkers bonded and insured?