You are jumping into deep and perilous waters.
Not only must you comply with Florida law, you must also comply with federal law and, if any of your debtors are in states other than Florida, those state laws too on debt collections.
You don't mention if you are enforcing judgments against business or consumers, but the laws are usually different (more protective of consumers).
I STRONGLY URGE YOU to retain a competent Florida lawyer and PAY to get solid advice and guidance on your business. The ounce of prevention is worth a pound of cure is applicable here. After you screw up and get sued, it probably will be too late to save yourself. And people LOVE to sue debt collectors.
I am not sure how the UPL (unauthorized practice of law) figures into this situation - you are allowed to represent yourself as long as you are doing business as an individual. If your business is an LLC or corporation, you MUST have a lawyer represent the entity in any legal proceedings with courts.
If you need further clarity, please email me at MICHAEL@MIRELAND.US Answers to questions are for general information purposes only and do not establish an attorney-client relationship. This is not legal advice, simply information. You SHOULD NOT act on this information without consulting a competent bankruptcy attorney in your area and providing ALL relevant information.
I agree with the previous answer. If you are purchasing and collecting defaulted consumer debt, you are classified as a "debt collector" for the purposes of the Fair Debt Collection Practices Act (FDCPA) even if you will only be collecting on the accounts you own.
I also strongly urge you to retain a lawyer who is familiar with the FDCPA, the Florida Consumer Collection Practices Act, and other relevant statutes before starting any collection activity.