I see my mother daily at the lovely assisted living facility where she has lived in the independent section, very close to our home, since my father's death just a few months ago. Since she moved there, I have seen very positive changes in her attitude, her demeanor, and her willingness to participate in activities and make new friends. Though she does have dementia, she has no problem socializing, taking care of her personal hygiene, using the phone, etc. We take her for outings at least once a week, which she thoroughly enjoys. However, my siblings, who live in other states, are saying that she should have a guardian appointed for her care. I am executor of my father's estate and have POA for my mother, and I consult my parents' attorney for any issues on which I am not perfectly clear. I believe I am fulfilling my duties as responsibly as possible, and that my mom is thriving in her new situation. Any advice?