It could be malpractice. Malpractice means that a health care provider violated the standard of care. A bad outcome is not enough. Another health...

Contact the Florida Attorney General.

They must have obtained a money judgment against you and are now trying to find your income and assets to collect.

They do not have to stop contacting you unless you tell them not to in writing. You can explain why the debt is wrong to see they will consider...

The company writing it off does not affect the responsibility for the debt.

If there was a written agreement not to sue, the should not have. Take your proof to small claims court.

There are many tools and techniques of judgment collection, including debtor examinations, written discovery, liens, levies and garnishments. The...

Get an agreement in writing so that if there is ever a problem, you have proof. Note, You must respond in the legal way and on time with, for...

Once you have exhausted your search for a legal malpractice attorney, file a Complaint with the State Bar. https://www.osbar.org/discipline

They owe you a refund, a more. File a complaint with the State Bar.