He is 88 yrs old. DHS stepped in and removed the 1st POA. He had been battling the now former POA because his sister was being mistreated by the POA she made when she was still competent to do so. She now has dementia. He had to tell DHS he was going to sue them if they weren't going to step in and help him. He wasn't expecting this POA to choose him. He thought her only daughter would be chosen. There's nothing wrong with the daughter. She has helped us tremendously. Has been talking to the DHS agent almost daily. She is my cousin and I have explained to her my dad, new POA doesn't have the energy to do everything with selling the house. Getting it ready (cleaning and clearing out the house). Again he's 88 yrs old. What can he do? All he wants is to watch over his sister and visits her every day at the assisted living home the family has moved her to. What can he do to change the POA?
Is there anyone else named as a successor POA, or is your father the last named successor?
Is there any language in the POA as to your father appointing a new POA at his discretion?
Finally, no one is forced to be POA - a person can choose not to serve. If there are no other POAs to succeed or no appointment powers, and no legal competency for his sister to execute a new POA, the family may wish to move to a conservatorship/guardianship to appoint her daughter as the legal representative for her mother or at least discuss options with an attorney in their state (states have different POA and guardianship laws - it's a good idea to check with an elder law attorney in the state where she resides as to options).
If it's still too much work, perhaps he can ask his niece to assist him as project manager. And if it's STILL too much, he can resign his POA. But it would be a good idea to seek legal advice first, and perhaps have a guardianship application ready to submit so that there won't be a period when nobody has the authority to act on your aunt's behalf.