pt sign POA against will

not even my resident but her daughter comes in and wants me to get her out of bed and dressed. i am told it is so she can go to meeting to sign papers. my impressin is meeting is legit as she is getting out of bed for it and impression is other people will be there. so i get her out of bed and dressed-- while res. is in bethroom i go to put attends on her which she never needs but today appears she is impacted poss. and poopy not ocming out. so while i am getting attends daughter asks what i am dong and i explain and tell her i will OK w/pt and she says, "you can ask me, today we are signing a POA, my mother does not want to but we are going to," (not exact quote but that is essence of it-- she very clearly said "my mother does not want to") so my antennae are up cause this sounds bad. i get mom in attends after getting OK from her and she very clearly heard conversation outside door and tells me plainly that she can make her own decisions thatnk you. very polite but firm. i go to brush her hair and it is oily-- i say, "lets take a shower tonight, OK?" and her daughter says something very harsh to the mom about how her hair looks-- mean tone, very blunt. then the daugheter asks me to go get someone to witness the signing of the papers-- or maybe she asked me to do it-- but whatever. i tell her as is after five we have nobody. i say i cannot witness. i excuse myself to look for someone. i go and nark on her to someone -- first the nurse who is too busy to care and probably does not know what to do then someone in med room who says i did right thing and under no circumstances get anyone to witness. because at my LTC they make sure the pt really wants to sign it, not just that they do. so i go back to deliver message to daughter and she tells me she cannot ever come in before five because she works which makes no sense as she came in that day at four thirtyish and i make excuse to go and when i check back she has pulled a visitor for another res. in and is getting her to witness. as the mom is LEGALLY BLIND, she cannot see what she is signing and they are coaching her. i get supervisor of shift who tries to get DON but cant, supervisor goes into room (i did not witnesss, i heard) and tells daughter document will not be accepted as is not notarized. so........ i just dont like it. my friend (person in the know) said at soe care centers or in some situations this document would could be accepted as valid POA... (but he has no other advice unless she says more to me about it, the pt) also we do not know that is what she even signed, a POA. any advice? thank you.