i am feeding my neighbor's cat

My neighbor has an indoor and outdoor cat. I felt sorry for it when it was a kitten and feed her. I live in Wisconsin and it is very cold here. I found the cat out a few times when it was cold out and took her home, her parents seemed indifferent. Then I found her out on a dangerously cold streak so I let her in my house and kept her there for three days until the streak ended afraid she would get stuck out again. She can not get into her home at will, she has to be let in as they live on the second floor. I really like her and want to continue to care for her when she comes to my house now....she always seems hungry....my husband thinks I should not, my mom thinks I should call the cops on the neighbor's for neglect......any thoughts or advice?

I would talk to the neighbors. Maybe the cat doesn't get along with the indoor? I would talk to them first before considering going to authorities.

My neighbor's cat is the only cat they have, thanks for your response

Do you know how your neighbors feel about the cat? Are you good friends with the neighbors? I'd go over and talk to them. Maybe just tell them that it's not good for the cat to be outside when the weather is that terrible. And ask them if they'd be willing to let you take the cat. 

Although I'm not an advocated for cat-napping, we did just that. Twice. Both times the cats were not being cared for properly and neither was spayed, so they kept having kittens. It wasn't a good thing and we simply gave up and took both of the girls. The neighbors knew we had them; heck, you could see them sun-bathing in our living room window, so it was obvious. They didn't care enough to come over and take them back, so we kept them. They both lived to be 20 years old in the house.

Meanwhile, bless you for taking the cat into your home during this cold period. Thank you,

I also agree with the others. They obviously aren't caring for her properly, or they wouldn't let her out in such dangerously cold weather.

Angel adopted me, & nothing was ever said about it until much later, that they were glad he found a good home. I think they knew I was taking better care of him,  (better food, vet visits etc..) & lived alone, so it was nice for me to have him. 

I have wanted to write our story, about how Angel came to me. I finally have a rough draft waiting to be edited, then I am going to post it. (In articles I guess it would go?)  

I wish you luck with talking to the neighbors.    

Keep us posted!

UPDATE

Ok, regarding feeding my neighbor's cat.....
I found the cat out again late last night and he came in my house and spent the night. This evening I found the cat stuck in the community hallway of my four plex and the neighbor kids were playing with her, a little to rough for my taste. So I went over to the cat's house and spoke with is father, I told him m my concerns and offered to keep her. He said no and asked me not to feed her anymore so she quits coming to my house. He also said he would try to keep her in more. Any thoughts? Should I wait and see?

I think you should wait and see what happens. If they seem to be keeping the cat indoors more and she looks like she is being cared for, then your conversation with her owners worked. If you see her out in the cold again you need to think about what is best for her. I'd bring her indoors if I thought she was suffering, but if the cat goes missing and her owners are worried about her they'll probably come knocking on your door.

Is this likely to cause problems for you? If it's just a case of letting her owners know that people are concerned about her well being then I think you've done that. If it seems that she really is being neglected then talk to the owners again.

Two of my cats spend nearly all of their time outside. They come home to eat but I have to lock them in if the weather is bad, and they always complain a lot about it. However, there is no way either of these cats would ever go into anyone else's house so I think their situation is very different to your neighbour's cat.

I agree. Just be sure to keep a close eye on her.