Why does a Cyprus lawyer have to sign the incorporation, and in which language?

The application (form HE1) must be signed and sworn before the court by the lawyer entrusted with the incorporation. The memorandum and articles are signed in Greek, and a certified translation is filed if you also want copies in another language. You sign your part remotely, and the lawyer handles the court step in Cyprus.

Source: Applying to incorporate a company, Department of Registrar of Companies and Intellectual Property