An offer is the first step in the process of contract formation. It is a proposal made by one party to another, expressing a willingness to enter into a legally binding agreement.

An offer must be communicated to the offeree before it can be accepted. An offer can be communicated orally, in writing, or through conduct. An offer is effective as soon as it is made, regardless of whether it is communicated to the offeree.

An invitation to treat is a preliminary negotiation, while an offer is a final and binding proposal. An invitation to treat is made to the general public, while an offer is made to a specific individual. An invitation to treat can be revoked at any time, while an offer cannot.

Acceptance must be communicated to the offeror before it is effective. Acceptance can be express or implied. Acceptance must be unconditional.

The mirror image rule states that acceptance must exactly match the terms of the offer. If acceptance varies from the terms of the offer, it is a counteroffer, not an acceptance.

Consideration is something of value given in exchange for a promise. It can be a benefit that the promisor receives from the promisee, or a detriment that the promisee suffers as a result of the promise.

The parties must have the intention to create a legally binding agreement. This intention is presumed in commercial contracts, but it is not presumed in social contracts.

Capacity to contract is the legal ability to enter into a contract. It includes the ability to understand the terms of a contract, the ability to perform the obligations of a contract, and the ability to consent to a contract.

Minors, mentally incompetent persons, and intoxicated persons lack capacity to contract.

A contract entered into by a person lacking capacity to contract is void. This means that the contract has no legal effect.

A void contract is a contract that has no legal effect. This means that the contract cannot be enforced by a court of law.

A voidable contract is a contract that can be canceled by one of the parties. This is typically done because one of the parties lacked capacity to contract or because the contract was entered into under duress, fraud, or mistake.

An unenforceable contract is a contract that cannot be enforced by a court of law. This is typically because the contract is illegal or because one of the parties lacked capacity to contract.

A void contract has no legal effect, while an unenforceable contract can be enforced by a court of law. A void contract can be canceled by one of the parties, while an unenforceable contract cannot. A void contract is illegal, while an unenforceable contract is not.

The remedies for breach of contract are damages, specific performance, and rescission. Damages are a monetary award that compensates the non-breaching party for the losses they suffered as a result of the breach. Specific performance is a court order that requires the breaching party to perform the obligations of the contract. Rescission is a court order that cancels the contract and restores the parties to the positions they were in before the contract was entered into.