protecting my father’s home and other assests My mother died this last Dec.

protecting my father’s home and other assests
My mother died this last Dec. and my 81 year old father is still living in his paid for home. He is in fairly good health but his memory is spotty. I’m hoping he will never go into a nursing home but I would like to know the best way to protect his assests in case he ever had to. I live about 30 min.away and have durable power of attorney for him. I have 3 siblings and his will splits everything equally among us. I’ve heard stories of nursing homes getting everything a person has saved and leaving nothing for the surviving adult children. This may sound selfish but I’m looking out for us also.
Thanks for any help you can offer.
Sincerely,
MCP

Transfer of Power of Attorney I have taken over the handeling of my mothers…

Transfer of Power of Attorney
I have taken over the handeling of my mothers care and legal affairs from my sister.
She is the legal Durable Power of Attorney with her son as the first and only alternate.
My mother is in a moderate state of diagnosed Alzheimers Disease. How can we transfer Durable Power of Attorny to me as the primary care-giver and manager of her affairs?