If both parties have no agreement on legal fees and attorney fees, the attorney fees shall be borne by both parties themselves; There is an agreement between the two parties that the court will require the party claiming the lawyer's fee to show the lawyer's entrustment contract and invoices to prove the actual amount of the lawyer's fee, and finally determine the reasonable fee for hiring a lawyer. According to the provisions of Article 25 of the Lawyers Law, when a lawyer undertakes business, the law firm shall uniformly accept the entrustment, sign a written entrustment contract with the client, collect fees uniformly according to the provisions of the state and record them truthfully. Law firms and lawyers shall pay taxes according to law. Article 28 A lawyer may engage in the following businesses: (1) Accepting the entrustment of a natural person, legal person or other organization to act as a legal adviser; (two) to accept the entrustment of the parties in civil cases and administrative cases, to act as agents and to participate in litigation; (3) Accepting the entrustment of criminal suspects and defendants in criminal cases or legal aid agencies to act as defenders according to law, accepting the entrustment of private prosecutors in private prosecution cases, victims in public prosecution cases or their close relatives to participate in litigation as agents; (four) to accept the entrustment and represent the complaints of various litigation cases; (five) to accept the entrustment and participate in mediation and arbitration activities; (6) Accepting entrustment to provide non-litigation legal services; (seven) to answer questions about the law and write litigation documents and other documents related to legal affairs.