Health Care Proxy As daughter to my elderly mother who will soon undergo…

Health Care Proxy
As daughter to my elderly mother who will soon undergo surgery, my question is whether a duly executed Mass. Health Care Proxy dated in 2005 supercedes a Living Will Declaration dated in 2004 and a Medical Directive executed at the same time in 2004 both of which gives my older sister authority to act and make decisions otherwise granted to me in the 2005 Health Care Proxy. Which would a hospital follow. Also, is there any expiration to a Health Care Proxy; i.e. is the 2005 Proxy still valid without having been changed since 2005.??

Advance Health Care Directive for Bi-Polar Patient Living Alone I have a friend…

Advance Health Care Directive for Bi-Polar Patient Living Alone
I have a friend who I have recently become reaquainted with after both of us moved back to the same small town and she has been diagnosed with bi-polar disease 5 years ago. She is not a stable person and has recently been released from a psychiatric hospital. She no longer lives with her boyfriend, and is lucid enough to know that she needs someone to ”be in charge” of her. She has asked me to be her power of attorney and she has asked me to have an Advance Health Care Directive made up for her and she will sign it. My hesitation is this: Am I legally responsible for any bad things she might do financially if I am her power of attorney? I do not want to be held liable if she should for some reason go charge all of her credit cards up. Other than that, I do not have hesitation in doing this–I just really need to make sure that no one can hold ME personally or legally responsible for any actioins she might take that are negative with me being her power of attorney. I really need an anser ASAP because she is not taking her meds and this would be a way that I can get her help…

Can spouses or close family members Witness POAs, Wills, Advance Directives?

Can spouses or close family members Witness POAs, Wills, Advance Directives?
Is it legally permitted for spouses and other close family members to sign as a Witness on a Durable POA, a Will, and or an Advance Directive in New Jersey, or must Witnesses be non family members for the above 3 items to be legally binding? Thank you.