1, generally using a one-time charge. For example, after receiving your criminal case, the two sides agreed to charge 3000 yuan in the first instance, and the lawyers in the middle can't charge any more, and they can't ask you for extra rewards because of the excellent judgment unless you take the initiative to give it.
2, there is also a risk agency situation, that is, charging according to the judgment. For example, before the two parties agree to make a judgment, you should pay the lawyer 3000 yuan, and then pay 2000 yuan after winning the case or reaching a satisfactory result, just like paying by installments.
Usually, lawyers tend to charge a one-time fee, and teachers can't guarantee that you will win the case or not be sentenced, because the outcome of the lawsuit is unpredictable, and lawyers will not take risks without full grasp. In addition, what if the judgment meets the requirements of the parties but no fees are paid afterwards? Lawyers should also safeguard their rights and interests!