Do not expect much of an obit from the Miami papers. At best you will get name, date of service, place of service and name of funeral home.I believe it is due to the huge number of people that live there. You might have better success with requesting a death certificate from The State of Florida. $5.00 and a couple of weeks. That will get you funeral home and place of burial. The funeral home might have more information.
Good Hunting,
Frank