Except as otherwise provided by law, a person may not practice, attempt to practice, or offer to practice law in the State unless admitted to the Bar. While an individual is on inactive status or disbarred or while the individual’s right to practice law is suspended or revoked, the individual may: discharge existing obligations; collect and distribute accounts receivable; or perform any other act that is necessary to conclude the affairs of a law practice but that does not constitute practicing law. It is not a defense to a charge of a violation of this section that the defendant acted through an officer, director, partner, trustee, agent, or employee who is a lawyer.