Can't Afford Gaurdianship?

I have in my care a 4 month old. I have been taking care of her since she was 2 weeks. It started as just a few days a week to almost full time. Her mother is very unconcerned and unreliable. I have been trying to get her into a daycare but without a daycare physical it's not possible. Tried to get the physical but I'm not a gaurdian or parent. Her mother mentioned giving me gaurdianship. Went to the courthouse today and they no longer do gaurdianship to minors. Mentioned that I should get a gaurdianship lawyer. I can't afford a lawyer, and the mother certainly cannot. Would something from a notary give me the right to take her to doc appt's and get her into a daycare. The mother doesn't seem to have the time for anything. I have done all the calling and leg work. She's 20 with 4 kids and thinks maybe a 5 is on the way. I don't know what to do at this point. This baby is being tossed to every person she knows since she does work and has no daycare. I alsowork full time and have no choice but to return her to her mother only to have her mother pawn her off to anyone. Its killing me. Any help or suggestions as to what I should do would be great. NO, I don't want to call DCF, or DHS on her. We work together and by doing so one the baby could be removed and two it would cause a whole lot of problems at work.