My mother is 93 and refuses a home attendant or a doctor. Any ideas?

My mother is 93 and refuses a home attendant or a doctor. She has not left her building in over 4 years. She has short and some long term memory loss. Not diagnosed by a Dr. but it is obvious. Difficulty walking because of hammer toes.
I went through the whole process of getting an attendant and she was approved. Then when nurse came to evaluate how many hours and days a week she cancelled the entire thing. The nurse said nothing she can do if my mother refuses since she may have memory loss but she is capable of making her own decisions. Health care proxy does not matter because she is capable of making decisions.
She lives alone but I stop by as much as possible during through out the day. I am open to suggestions. This has happened twice and the case ends up getting closed and then I have to restart the entire process all over again when she decides she wants home attendant.
Needless to say I am stressed.
I am there 7 days a week in evening to make sure she is secure (windows, doors locked, stove off, fridge and cabinets full and to clean up the place). Figure since I am there every day I would become her attendant this way they can not close the case and next time she says she wants a home attendant I just call and get a professional in quicker than having to go through whole process. Then I could step back.
Any thoughts on this idea or input would be appreciated!!!!!