Yes co counsel could withdraw. The client would need to hire a new attorney.

All of those would be violations of the attorneys’ duties. Consult with an experienced attorney. Use the Avvo search tool to find an attorney.

Yes you can have many attorneys on a case.

Destruction of a fully signed agreement would not invalidate it.

You should contact the police for criminal behavior.

Medical malpractice means that a doctor violated the standard of care. A bad outcome is not enough. Another doctor would be needed to evaluate...

No, without harm of some sort, there is no case.

Use the Avvo search tool to find an attorney who is handling these type of cases.

Yes it is a potential lawsuit. Such cases are very difficult and few attorneys handle them. Especially if the injuries are not permanent and...

If they left voice mails, you should save those as proof of any violations.