Bipolar Disorder Support Group
Bipolar disorder is not just a single disorder, but a category of mood disorders marked by periods of abnormally high energy and euphoria, often accompanied by bouts of clinical depression. This is the place to talk about your experience with bipolar disorder, learn from others' experiences, and find support.
I know someone who lives in low income housing who is not disabled but has depression get approval to bring a small dog. This is in CA so I don't know if laws vary by state.
Good luck getting a puppy.
Have you looked into service dogs? They have them for mental illness and your landlord would have to allow it.