Hello I am new to this site and need advice on bringing in a stray kitten. I have 3 inside adult cats currently, ages 5, 10 & 16 (all previous rescue cats). Now a bunch of cats are roaming the area and one had 2 babies under my back porch this summer. One of them died or disappeared and the other I want to take in. When I put food out the mom and other cats, even a possum come in and bully him out of the way. I have to stand over him while he eats. I am not sure if he is a boy or girl but he lets me pet him and he comes to me when I call him. He waits for me in the evening to come home from work. I tried to pick him up and he was wild but everything else he lets me do. Before he comes into my house I need to get him checked out for fleas and fixed in order to be around my cats. How old do they have to be before they get fixed and what else would he need from a vet? How should I get him in a carrier to take him in to the vet? I plan to check out the Humane Society this weekend because someone told me they spay and neuter stray cats for $25. I think he wants to come in and my cats know he is out there and with a little adjustment I think they will all get along. When I do bring him in does he need to be separated for a time? Any advice is appreciated. I just can't watch him out in the cold and rain.