I have two medical facilities cited in not following protocol?

One, Howard County General for not recognizing the fact my stepdaughter had no powers when it came to decision making for my estranged wife of six months ( my stepdaughter said she was power of attorney but the paper was left at home. She never brought it and Office of Health Care cited them after I complained. Gilchrist Hospice Care for going along with my stepdaughter and another woman for not letting me know my wife was at their facilty dying as well as other questionable decisions. How a 22 year old and a 37 were able to get around the Health Care Decisions Act which was created for this purpose when it came to who had say, you got me. What are my legal rights in this being I was still married to my wife at the time of her death and to add one other thing, I went to the state attorney and showed him the evidence I had accumulated and though it is a civil case, there is nothing but criminal in this. Do I have malpractice lawsuits for these facilities being negligent?