I am in Palm Beach county. I would suggest hiring from a local agency or online (you can see whom has Caregiver ID badges (they are level 2 background checked in Florida). They have reviews that you can read through from other families who have used them - you can pay them directly from the site and see their additional qualifications and degrees etc.
I put a very common caregiver site in my response but it must not be allowed to do so as it was deleted. The site has elder care - companions - sitters etc - you can pay right through the site - read reviews - get background checks etc.
It is not safe.