There are attorneys who concentrate on Dental Malpractice. Use the Avvo search tool to find an attorney. https://www.avvo.com/find-a-lawyer

No. Failure to pay a debt, alone, does not allow jail.

Ask the lawyer to fox the problem. If he does not hire another attorney and sue him for damages.

Generally the police have wide discretion and so, generally, there would be no lawsuit against them. Talk to the District Attorney’s Office,...

It depends on the purpose of the statement.

When you testify you are “put under oath.” Affidavits are Under Oath. This does not mean at other times there are not consequences for lying.

Unless it is specifically sold As Is, you may have a case including a claim for fraud.

Basically, yes. But it can make the opposing side look very bad and that may help your case.

Contact inexperienced, debt collection, defense attorney. Use the Avvo search tool to find an attorney. https://www.avvo.com/find-a-lawyer

If you serious about pursuing this, you can hire an attorney to research and bring a lawsuit if the police or other agency will not take action.