1. Preliminary confirmation: preliminarily confirm whether the contract complies with the legal provisions, such as whether there is anything that violates laws, administrative regulations or public order and good customs.
2. Legal interpretation: Explain and analyze the disputed clauses in order to better understand and master their legal meanings.
3. On-the-spot investigation: A lawyer can confirm the specific situation when signing a contract through on-the-spot investigation, such as the signing place, signing personnel, witnesses, etc.
4. Appraisal: If it is necessary to further confirm the authenticity of the contract, the lawyer may entrust a professional institution to appraise the relevant evidence and draw a conclusion.