Found femal pit, needs new family (Universal City)

Please help us find this beautiful girls family.
She looks clean and well fed with trimmed nails so she must have been somebody’s pet but nobody has come forward.
Does well in the kennel.
I don’t think she is fixed.
I have too many dogs and cats and am already over extended so she can’t stay.
I’m rotating outside time in the backyard so I can keep her separate from my dogs.
She is such a sweet dog and howls so sadly (very quiet howl though, sounds like a dove) on the back porch as she must be sad and lonely and I can’t be with her all day outside.
I’ve been turned down by every rescue even the regular animal control.
Please share her pic so she can get home quickly!!