Anyone know who this baby belongs to?

Found cat (?): unknown aged female calico, clipped left ear, distinctive orange spot on shoulders. I live near West High and, I admit we have a small cat colony in the area. I know we have a black cat with a white spot, long haired tabby cat, and a thin brown tomcat. But this babygirl I've never seen before and she acts TOTALLY DIFFERENT than the other skittish feral cats and im worried she's someone's missing baby. About a week or so ago, she came uo to me late at night after I got home from work, meowing and rubbing against me. Me and my family assumed she was someone's free-roamer prowling the midnight streets looking for a handout, so i pet her and left her be even after she started meowing at my door. It's been almost 2 weeks now and she is litterally showing up at my house day and night. She's WAY too friendly to just be written off as a stray, as she actively seeks out humans rather than run away. I'm just worried someone is missing her. I've been leaving out some food for her, and have been calling her Breezie for now, but im worried about taking her inside. I already have a cat (lovely little 2 year old dilute tortishell Margalo), and i don't want to potentially take someone's pet. If anyone knows whose missing a very vocal but sweet white calico with an orange spot on the shoulder, please LMK!