My mother, who is 78, has shown signs of memory problems this whole year and 2 relatives share POA. They live with her at her home. Recently I asked something pertaining to her memory and found out they haven't taken her to get it checked out after all this time. They've all known she remembers little in present tense but have done nothing about it for her. I've offered to bring her to appts and do anything they need for my mother so there's no excuse.
They keep her away from family and her friends.
What are my rights as her daughter? I have no money and cannot afford a lawyer.
Your mother presumably gave her grandson and his wife POA for the practical reason that she lives with them and they are responsible for her care, no? What makes you believe there was coercion involved?
In any case, you cannot "sue" to have POA removed from your nephew and given to you. POA can ONLY be given by the person for whom it is exercised (your mother, in this case).
Where power of attorney breaks down but the person still needs someone to act for her, the next step is guardianship. Applying for guardianship is an expensive legal process that must be done through the courts.
You seem to be basing quite a lot of fears on their failure to attend a memory check; and yet there could be all sorts of reasons for that failure - not least that your mother may be refusing to attend. These tests can be lengthy and if the patient is uncooperative they are likely to be a complete waste of everybody's morning.
Have you offered to organise an appointment and take your mother yourself? Has your mother authorised you to have access to her medical information under HIPAA rules?
I am fully concerned with my mother's health. You just don't know these people.