The contract exists upon the perfection of mutual consent even if the subject matter or the consideration has not been delivered
Real contract
The contract is perfected not merely by mutual consent but by the actual or constructive delivery of the object of the obligation
Solemn contract
The contract is perfected upon the execution of the form required by law
A person is not bound by the contract of another to which they have no knowledge or to which they have not given any consent
A contract entered into in the name of another by one with no authority is unenforceable against the former unless ratified by them before the other contracting party revokes it
A lapse of time cannot remedy such unauthorized contract except insofar as it has been subsequently ratified by the person in whose name the contract was entered into or by their duly authorized representative
Essential Requisites of Contracts
Consent of the contracting parties
Object certain, which is the subject of the contract
Cause of the obligation that is established
Consent
Manifested by meeting the offer and accepting the thing and the cause, which constitute the contract
The offer must be certain and the acceptance absolute. A qualified acceptance constitutes a counteroffer
Cognition Theory
Acceptance takes effect from the time the offeror knows of the offeree's acceptance
Manifestation Theory
Acceptance will take effect once the offeree manifests it
Acceptance must be made before the offer becomes ineffective, that is, before the withdrawal of the offer by the offeror or before the death, civil interdiction, insanity, or insolvency of either party
An acceptance may be expressed or implied
The person making the offer may fix the time, place, and manner of acceptance, all of which must be complied with
An offer made through an agent is accepted from the time acceptance is communicated to him
An offer becomes ineffective upon the death, civil interdiction, insanity, or insolvency of either party before acceptance is conveyed
Option contract
Where the offeror gives the offeree for consideration a certain period within which to accept the offer
Option period
The period within which the offeree must accept the offer
Option money
The money paid or promised to be paid in consideration for the option
Earnest Money
Given only where there is already a sale. When earnest money is given, the buyer is bound to pay the balance. It is part of the purchase price
Business advertisements of things for sale are not definite offers but mere invitations to make an offer
Advertisements for bidders are simply invitations to make proposals, and the advertiser is not bound to accept the highest or lowest bidder unless the contrary appears
Persons who cannot give consent (Incapacitated Persons)
Unemancipated minors
Insane or demented persons
Deaf-mutes who do not know how to write
Contracts entered into during a lucid interval are valid. Contracts agreed to in a state of drunkenness or during a hypnotic spell are voidable
If both parties in the contract are incapacitated persons, then the contract is enforceable, which means it cannot be enforced unless it is ratified
If only one of the parties is incapable of giving consent, then the contract is voidable, which means that the contract is valid until annulled
Vices of Consent (Vitiated Consent)
Mistake
Violence
Intimidation
Undue Influence
Fraud
Mistake
Refers to the substance of the thing which is the object of the contract, the conditions that have principally moved both parties to enter into the contract, the identity or qualifications that have been the principal cause of the contract, or the legal effect of an agreement when the real purpose of the parties is frustrated
Violence
Serious or irresistible force is employed to compel a person to enter into a contract
Vices of consent
Mistake
Violence
Intimidation
Undue Influence
Fraud
Void contract
Contract is void if consent is given through any of the vices mentioned above
Voidable contract
Binding unless annulled by a proper action in court
Conditions for mistake to invalidate consent
Substance of the thing which is the object of the contract
Conditions that have principally moved both parties to enter into the contract
Identity or qualifications that have been the principal cause of the contract
Legal effect of an agreement, when the real purpose of the parties is frustrated
Violence
Serious or irresistible force employed to wrest consent
Intimidation
One of the contracting parties is compelled by a reasonable and well-grounded fear of an imminent and grave evil upon his person or property, or upon the person or property of his spouse, descendants, or ascendants, to give his consent
Undue Influence
A person takes improper advantage of his power over the will of another, depriving the latter of a reasonable freedom of choice
Factors in determining undue influence
Confidential, family, spiritual and other relations between the parties
Mental weakness of the person alleged to have been unduly influenced
Ignorance
Financial distress of the person alleged to have been unduly influenced
Fraud
Through insidious words or machinations of one of the contracting parties, the other is induced to enter into a contract he would not have agreed to without them
Kinds of fraud
Dolo incidente or incidental fraud (not serious and without which the other party would still have entered into the contract)
Dolo causante or causal fraud (deceptions or misrepresentations of a serious character employed by one party without which the other party would not have entered into the contract)