Lawyers can help the parties to analyze the case, advantages and disadvantages, provide constructive suggestions for the parties to make the most appropriate decision, and remind them to take effective legal measures in time. The rights and obligations of both parties to any dispute are opposite, some are very obvious, some are hidden, some are direct and some are indirect. For the parties who are not legal professionals, it is difficult to know the relatively secret and indirect rights and obligations. Lawyers who know the law and are familiar with the litigation procedure can help the parties analyze the case, what legal means can be taken, advantages and disadvantages. For lawyers with rich practical experience, they can even predict the outcome of the case and give instructions so that the parties can take the most appropriate countermeasures.