Currently, my sister in law has power of attorney for my father in law who lives with me. We need to change this power of attorney over to my husband and myself as we have been my father in laws full time care takes for the last 2 1/2 years and his health is declining. My sister in law is one that you can never get a hold of or takes weeks to respond and as we are working with my father in law for his health care, more and more it's getting harder because we are not permitted to talk for him unless he gives permission, which he does, but we don't know how much longer he will be competent enough to do that. Does a POA need to be registered and filed and does it need to be done through a lawyer? My FIL will NOT leave the house for anything but Dr's appts any more so just trying to understandI ran out of room above. There won't be any problems from my sister in law with us taking POA but, would we need to somehow cancel her's so we can take over, and have first choice or first rights or what ever it's called? Basically, we need to be able to take control of my father in laws health care as if he were our minor child and I need to find out how I do that.