GUARDIANS in Lee County? I am 89. Health, mind and income all are ok, but no relative for "whom to call in case of emergency."

I will be 90 next year. Today my mind, health, income are all o.k. I do not have any functioning relatives. For rental, medical, bank, etc. I need to list a"Whom to contact in an emergency." I contracted an elder law attorney for POA, made a testament and signed a living will, but the law office itself has nobody for "guardianship" in case of need and suggested a professional guardian and may refer me to a professional guardian. I guess they would "stand-by" and "spring into action" when the need arrived. Let me read your suggestions, advice, information.