[Expert Solution]: Santiago’s health has continued to decline…

Santiago’s health has continued to decline following his TIAs. He is competent but recognizes there is a chance that his cognition will get worse. He recalls that his mother developed dementia in her late 80s. While he is still capable of making decisions, Santiago wants his son, Romero, to be given authority to make healthcare decisions for him when he cognitively can’t. Santiago needs to complete what legal document to ensure that his son is legally empowered to make those decisions?