1. According to the law, if you are the owner of the house, but the house is rented by an unauthorized third party, you can ask the tenant who has already moved in to cancel the contract and vacate the house. So the house has been rented by the intermediary for two years without knowing it. I can ask the tenants to take it back.
2. Tenant, a Chinese character, pinyin is zū kè, which means a guest who rents a house.