She is now in a better condition after breaking her hip, that I can take care of her. Not to mention her whole social security is going to facility and before her injury, we shared an apartment together so I counted on her SS to help. Does the rehab facility change the paperwork for Medicaid to pay for home care? Does anyone have experience and know how much to expect from Medicaid once she gets home. I was told that they do not pay my mom or even myself, as her caregiver, but they pay the people who come in to assist. Do those people have to be approved licensed caregivers, or how do I find that help and how can I assure they are paid by Medicaid? I know a lot of questions...I'm sure someone has had similar experience.
There's a "but" coming.
Your mother has advanced dementia. She has already broken her hip, presumably through a fall at her home, was that? She is now doing well in rehab and she has been approved for long term care in a facility.
The - how did somebody put it just the other day - the gnat in the tea is that you are quite open about the main reason for wanting your mother to live at home with you instead of in the facility, and that reason is not an acceptable one. It is so that you can continue to live in your apartment which you cannot afford unless you and your mother share its expenses. This is NOT financial abuse, I'm not accusing you of anything wrong - it's perfectly all right for your mother to pay her share of the living expenses - but it is not putting her best interests first, either.
Take your own wish to stay in this apartment completely off the table, and figure it out again. Would it still be best for your mother to live there, with you as her primary caretaker and with whatever support Medicaid will pay for?
You already have one good option ready for her, and the funding sorted out. Unless you are absolutely certain that you can do better for her than that, it would be safer for her and better for you if you plan instead to move yourself to a more affordable place where you can still visit her regularly, and hand the primary burden of care over to professional hands.