Homeless cat

Hi I am really not sure if she is female but I'm guessing she is. So there is this cat that has been around my house at all hours of the night and day for many months . I'm sure it doesn't have a home I see it out in the middle of night and the winter is coming. She is super sweet peaceful and calm and seems domesticated. I believe someone lost her a long time ago and she is not prepared to handle the winter outdoors. I can tell by her behavior she must of once had a home but now does not . She is super sweet and mysterious and I love her beautiful bright illuminating green eyes . She looks like a goddess and acts like it too. She is tough and smart and I think someone will fall in love with her elegant nature . She needs a home badly and this is urgent .  Oh the reason I cannot keep her is I live with my parents and they have allergies to cats . So therefore unfortunately I would love to but cannot keep her. So if you are a cat lover and are a very compassionate calm person and looking for a cat I will not charge I can get her in a crate for to take home and give you all my info . So please let me know . I am so desperate to find her a home . Shes so beautiful.