Is it illegal for a property company to hold the official seal of the industry Committee?

Illegal. No one may engrave the official seal of the owners' committee without permission. If the official seal of the owners' committee is engraved privately, the seal shall have no legal effect, and the person who engraves privately shall bear legal responsibility. Property management company is an enterprise-type economic entity with corresponding qualifications established in accordance with legal procedures and an independent enterprise legal person.