Mom was not coherent to know what she signed. I moved in with my mom after my ex left me. I had to move in with mom and took care of her prior and during my staying with her. The POA is invalid just have to prove it with an attorney. They told me that I had to pay rent to them in which I did for 3 months and then stopped after I was advised they can not profit off me because they have POA. They are threatening me and say they will evict me out of mom's house. They also expressed they want their daughter to live in the house. Can they evict me and if so what are my rights?
Your mother has dementia and lives in her own home.
You have been living with her for ? how long, since you split up with your partner.
You have been helping her with ?what kind of thing for ?how long?
Your brother and SIL, meanwhile, after your mother's dementia diagnosis, arranged for her to create a power of attorney and to give that POA to them. The dementia diagnosis does not in itself mean that the POA must be invalid. You would have to prove that your mother was unable to understand what she was doing at the time when she did it. How will you do that?
The POAs told you that you would have to pay rent as long as you lived in your mother's house. The rent would go to them, because they were acting on your mother's behalf with POA. The rent, all the same, was thereby paid to your mother, not to the POAs; unless you can also prove that they were stealing it.
They now want you out of the house; and their plan is that their daughter will move in with her grandmother and provide live-in care.
How is your mother coping in the middle of all this conflict? What would you see as the best way to ensure her welfare?
Next, I would find an Elderly lawyer and explain the situation and showed him/her the letter from the Dr, and if need I would call APS and see what serves they offer that could help you. Also call a lawyer who handles evictions. With this Lawyer you can get some answers over the phone for free most of the time!
Start doing these things now and don't tell anybody what you are doing. Let them think whatever at this time. Once you know where you stand than tell them.
Are you able to talk to your mom about this? If so, have her get a new POA, if not, do the above things.
If I come up with anything else I'll post it to you.
Keep us posted.
Good Luck!