what type of attorney do I need?

Your mother committed a crime which should be reported to the police for potential prosecution.

You could also sue her in civil court. Any attorney who handles business litigation would probably be able to help you, although it would likely be on an hourly basis.

I agree with Mr. Swanson. Furthermore, if you are willing to prosecute a criminal action against your mother, you can also likely, depending upon the circumstances, get out of paying for the credit cards because you are a victim of identity theft. However, it is highly unlikely that you can successfully purge the debts against you without having her prosecuted, or at least reporting her to law enforcement. If you are wiling to proceed, seek the assistance of an attorney sooner rather than later.