A binding contract generally needs an offer, acceptance, and “consideration” (something of value exchanged), plus parties who are legally able to agree and a lawful purpose. It does not always have to be written or notarized — though some contracts generally must be in writing to be enforceable.
A contract does not need legalese or a notary to bind you — it needs the core elements. There must be an offer, an acceptance of that offer, and consideration, meaning each side gives or promises something of value. The parties must have capacity (age and sound mind) and the purpose must be legal. Many valid contracts are oral or created by conduct. The main exception is a category of agreements — real estate, long-term commitments, and some others — that a rule called the statute of frauds generally requires to be in writing to be enforceable; the exact list depends on your state’s law.
Not always. Many oral contracts are binding. But certain agreements — like those involving real estate or that can’t be performed within a year — generally must be in writing to be enforceable.
Usually no. Notarization proves who signed, but most contracts are binding without it. A few specific documents require it.
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