Is it necessary to hire a lawyer to help organize prostitution?

You can hire a lawyer, but not necessarily. This mainly depends on the facts of the case. The criminal facts are clear and the documents are indeed sufficient. In this case, it is useless for you to hire a lawyer.

Anyone suspected of assisting in organizing prostitution shall be sentenced to fixed-term imprisonment of not more than five years and shall also be fined; if the circumstances are serious, he shall be sentenced to fixed-term imprisonment of not less than five years and not more than 10 years and shall also be fined.

Defense lawyers can provide legal aid to criminal suspects during the investigation; represent appeals and accusations; apply for changes in compulsory measures; inquire about the suspect's alleged crime and relevant circumstances of the case to the investigation agency, and provide opinions.