How do I find a lawyer to represent my sister who is a stroke victim?

1:30 ish on July 13, 2019 my sister, divorced and single, called an ambulance for herself. The ambulance took her to Unity Medical Center in Manchester, Tennessee. I arrived around 2pm as the doctor accessed her. He told me he thought she had a slight stroke, she was still talking to us and could still see, although her left eye was blurry. She was also throwing up alot. The doctor suggested to me that she needed to be transported to another hospital, as they are not equipt to handle strokes. I suggested St. Thomas Rutherford in Murfreesboro, Tn. He agreed and said he would get it going. Around 3:30-4:oo pm they told us they were still waiting on St. Thomas to call them back to accept her. We called St. Thomas ourselves and they said they had already called Unity and told them a bed was waiting. Unity had given my sister something that sedated her where she was lethargic. They then told us that within 5 surrounding counties there was not an available ambulance. At 8:15pm we