I have taken care of dogs of all sizes and shapes including puppies and senior dogs. This app has a strong emphasis on dogs, which is no problem but I'd like to mention cats too. For everything I mention about dogs it applies to cats too. I've had dogs, I have 2 cats, I have 6 chickens and I've taken care of a whole gambit of creatures like fish and birds. I just like hanging out with animals, I watch my neighbors and brothers dogs often. I do a lot of outdoor work for my main profession so I can take dogs on plenty of walks if needed. I know when to keep an eye out for overheating and dehydration. I am great at following directions and learning watch out signs for other medical issues that are brought to my attention beforehand. No dog is too picky for what their challenges are for food, medication or rituals they need to be healthy and comfortable. That being said... dogs that are aggressive towards people and/or other dogs will be case by case and isn't an automatic no but I reserve the right to decline service if I don't feel I can safely handle them.