I saw a second-hand house through an intermediary and signed an agreement to see the house. Only my name was written in the agreement, but later the owner contacted me through my advertisement.
This is not a breach of contract. The new contract law stipulates that it is valid as long as both parties sign it. Unlike in the past, it needs notarization. The intermediary company only played the role of notarization, but it still earned you a dollar. He can only sue you for tax evasion in court. As long as you pay taxes, they don't care. But mind you, tax is not a small amount. But it is best to transfer ownership, regardless of the tax, otherwise there will be a lot of trouble in the future, and generally speaking, the seller will not agree not to transfer ownership.