Okay so one of our neighbors moved away and left their female cat, she decided she wanted to stay with us and we love her a lot, soon after she came into heat and well now we have 4 kittens in our garage, we know how to take care of them so don't worry! But I want to keep one and also be able to get it taken care of at the vet/have papers in case I need to prove the kitten is mine. How would I go about it? I don't really know what to do here.