New Jersey Real Estate Salesperson · General Principles of Agency
Agency Creation and Types
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Agency is a relationship in which one person, the agent, is authorized to act for another, the principal, and it can be created by words, by conduct, by later approval, or by appearances. The distinction most often tested is general agency versus special agency: a listing licensee is a special agent with narrow authority.
Why this matters
The exam likes to describe a licensee who never signed anything and ask whether an agency relationship still formed, and it is very often yes.
The college version
In normal terms
- Express agency is created by an actual agreement, written or oral; implied agency is created by how the parties behave; ratification is approval after the fact; estoppel is agency by appearances the principal allowed.
- Both a general agent and a special agent act for a principal, but only a general agent has broad ongoing authority over a business, while a special agent handles one limited task.
- A listing licensee or broker is a special agent; a property manager is typically a general agent.
Concepts in this outline
- Express agency — agency created by an actual agreement, spoken or written, in which the principal clearly authorizes the agent to act on the principal's behalf.
- Written agreement — the safest form of express agency, such as a signed listing or buyer-representation agreement that states the scope of authority and compensation.
- Oral agreement, subject to legal and brokerage requirements — express agency formed by spoken words; valid in principle, but many state rules and brokerage policies require written agreements.
- Implied agency — agency created by the conduct of the parties rather than words, such as a licensee acting as a buyer's advisor without a signed agreement.
- Agency by ratification — the principal accepts, after the fact, an act done without authority, making it as binding as if authorized from the start.
- Agency by estoppel — a principal who lets a third party believe someone is the principal's agent is barred from denying the agency after the third party relies.
- Universal agency — the broadest authority, allowing the agent to handle nearly all of the principal's affairs, typically under a general power of attorney.
- General agency — ongoing authority over a business or range of transactions, such as a property manager who leases units and hires contractors for an owner.
- Special agency — limited authority for one specific transaction, with no power to bind the principal to a contract; the usual status of a listing licensee or broker.

Eli explains
The same idea, in plain words
Explain it like I’m 10
Agency starts when one person agrees to act for another. The person acting is the agent; the person being helped is the principal.
The cleanest way is to say so. That is express agency: a written listing or buyer-representation agreement, or, where law and brokerage policy allow, an oral agreement. Written is always safer.
Agency can also form silently. Implied agency grows out of conduct, such as a licensee negotiating and advising for a buyer as if the buyer were a client. Agency by ratification happens when someone acts without authority and the principal later approves. Agency by estoppel arises when a principal lets a third party believe someone is the principal's agent, and the third party relies on that belief.
Authority comes in three sizes. A universal agent can do nearly anything for the principal, usually under a broad power of attorney. A general agent handles an ongoing business, like a property manager. A special agent has authority for one specific job and cannot bind the principal to a contract, which is exactly what a listing licensee is.
Worked example
Priya, a licensee in Montclair, meets Daniel, who owns a Victorian on Upper Mountain Avenue. He signs a listing agreement with her broker: express agency, in writing. Priya can market the home and present offers, but she cannot sign a sales contract for Daniel, because she is a special agent. Meanwhile, Daniel's brother Sam manages Daniel's four-unit rental in Bloomfield, collecting rent, hiring plumbers, and signing leases under a management agreement; Sam is a general agent with ongoing authority. When Sam once approved a roof repair Daniel had not authorized and Daniel later paid the bill and thanked him, that approval was ratification. Same family, three kinds of agency, each with its own reach.
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