John, a real estate salesperson, has entered into an agency agreement with a client whose scope is limited to that described in the agreement. This level of authority suggests that John is what type of agent

John is a Special Agent  in real estate industry that is further explained below in details.

Explanation:

A special agent in real estate is an agent appointed to complete a particular service for a client. The agent's authorization is confined to a particular job for the client. ... The agent only has the power to operate as the buyer listing agent; once the residence is traded, the association between the agent and the client expires.

answer; the inspector may have found some violation that could cause death or some kind of serious injury;

answer; vertical marketing system;