I know if I employed any one to care for my pet, I would also want a police check, so that might be worth you doing too. And also aswell as Pulbic liability, some sort of Insurance to cover anything happening in the home at pick up, breakages etc. I would also want to make sure there was an insurance for anything happening to my pet whilst in your care and the fact that it would cover taking my pet to the vet and paying for any damages yourself. Bet you don't want to work for me. :-D