Generally (unfortunately) "not really". For a tax return, for example, the preparers information is on it but you still sign it.

Again, generally speaking they carry insurance much like a doctor has malpractice insurance.

The risk for them is causing enough damage (and the resulting insurance payouts) rendering them uninsurable which is generally a career ending state to be in.

Truly egregious stuff can end up with disbarment and other certifying bodies revoking stuff. Again much like a doctor screwing up to the point where they lose their license.

Then, like anyone else, criminal liability is always a possibility if the situation calls for it.