Contract formation is a fundamental concept in contract law, which is a core subject on the Bar Exam. A contract is a legally enforceable agreement between two or more parties that creates mutual obligations. The process of forming a contract generally involves several key elements: offer, acceptance, consideration, capacity, and legality.

Let's dive into each element:

1. Offer

An offer is a promise to act or refrain from acting, which is made by one party (the offeror) to another party (the offeree). The offer must be clear, definite, and explicit, leaving no room for negotiation. It must also be communicated to the offeree. For a contract to be formed, the offer must be present and accepted.

2. Acceptance

Acceptance is the unconditional agreement to the terms of the offer. It must be communicated by the offeree to the offeror and must mirror the terms of the offer exactly, without any modifications; this is known as the "mirror image rule." Any variation from the terms of the offer is considered a counteroffer rather than an acceptance.

3. Consideration

Consideration refers to something of value that is exchanged between the parties involved in the contract. It can be a benefit to the promisor or a detriment to the promisee. The essence of consideration is that each party must give something of value for the agreement to be legally binding.

4. Capacity

Capacity concerns the legal ability of a party to enter into a contract. Certain individuals, including minors, those who are mentally incapacitated, and intoxicated persons, may lack the capacity to enter into a contract. Contracts involving parties who lack capacity are generally voidable at the option of the party lacking capacity.

5. Legality

The purpose and terms of the contract must be legal. A contract for an illegal purpose or with illegal terms is not enforceable in court. This means that the subject matter of the contract must not violate any laws or public policy.

Additional Considerations

Mutual Assent: Also known as "meeting of the minds," this principle requires that both parties agree to the terms of the contract in the same sense and at the same time.

Intention to Create Legal Relations: Parties must intend for their agreement to be legally binding.