I caretake my 85 year old aunt, she never married, lives on her own. I live with her. I can't do anything right, she needs more care then she believes, in what has turned into a cruel twist, she and her attorney told me that my name would be added to the lease so that she can remain at her home. I agreed to it, Now, she has reneged. I am giving notice to the family that I am done. This kind of cruelty is just heartbreaking.
Giving you the home in the will is one thing, changing the title is another and one will have tax consequences and the other perhaps not. We just did this for a home that my mother purchased for my brother, and the title was change to read "so and so with joint tenancy with right of survivorship". This should avoid probate and taxes, but consult an attorney!
Hope she has her other documents in place, POA, will, medical power of attorney, etc. or it will be a mess upon her death.
But in any case, if you don't want to live there and take care of her, don't. Explain to the attorney (in writing) that you are resigning as caregiver and other arrangements will have to be made. Allow a reasonable timeframe for other arrangements to be made, but don't wait indefinitely. Give notice to the family too, of course.
If there is anything that would change your mind about leaving, make that very clear to all parties. For example, you could do this if you had every-other-weekend off, and if they hire a housekeeper or whatever would make this acceptable to you. It probably won't work to say "if auntie recognizes her limitations."
If you want something changed, negotiate for it. If you simply want to leave, give notice.
By the way, things don't get better. They get worse. If you have a chance to move on, you might want to consider it.