1. A breach of contract reminder letter has no legal effect;
2 .If you receive an infringement lawsuit letter, the party concerned can contact the sender to negotiate and handle the infringement issue, or you can entrust a lawyer to handle it. If you receive a letter from a lawyer, you generally need to sign for it yourself. If you cannot sign for it in person, you can entrust someone else to sign for it.
Notices generally serve as notifications and are not legally binding. The specific handling must be decided by the parties concerned.
Legal basis:
Article 28 of the Lawyers Law of the People's Republic of China
Lawyers may engage in the following businesses:
( 1) Accept the entrustment of natural persons, legal persons or other organizations to serve as legal advisors;
(2) Accept the entrustment of parties to civil cases and administrative cases, act as agents and participate in litigation;
(3) Accept the entrustment of criminal suspects or defendants in criminal cases or be appointed as defenders by legal aid institutions in accordance with the law, accept the entrustment of private prosecutors in private prosecution cases, victims of public prosecution cases or their close relatives, and participate in litigation as an agent;
(4) Accept entrustment and act as an agent for appeals in various litigation cases;
(5) Accept entrustment and participate in mediation and arbitration activities;
(6) Accept entrustment and provide non-litigation legal services Services;
(7) Answer legal questions and write litigation documents and other documents related to legal affairs.
Article 125 of the Civil Procedure Law of the People's Republic of China
If mediation is applicable to a civil dispute filed by a party to the People's Court, mediation shall be conducted first, unless the party refuses mediation.