No. Shenzhen Taihang Law Firm has no legal provisions on the time limit for the lawyer's letter, so there is no time limit for issuing the lawyer's letter. The time limit for the lawyer's letter is determined by negotiation between the client and the lawyer. Shenzhen Taihang Law Firm is mainly engaged in accepting appointments from state agencies, enterprises and institutions, schools, social groups and citizens to serve as perennial legal consultants and special legal consultants.