1. Contracts
1.1. Essential Requisites
1.1.1. Consent
1.1.1.1. Theories
1.1.1.1.1. Manifestation
1.1.1.1.2. Expedition
1.1.1.1.3. Reception
1.1.1.1.4. Cognition
1.1.1.2. Fraud
1.1.1.2.1. Dolo causante
1.1.1.2.2. Dolo incidente
1.1.2. Object
1.1.3. Cause
1.2. Forms of Contracts
1.2.1. Presence of essential requisites
1.3. Reformation of Instruments
1.3.1. Instruments that cannot be reformed
1.3.1.1. Simple donations inter vivos
1.3.1.2. Wills
1.3.1.3. Where the real agreement is void
1.4. Defective Contracts
1.4.1. Rescissible Contracts
1.4.1.1. As to party who may institute action
1.4.1.2. As to causes
1.4.1.3. As to power of the courts
1.4.1.4. As to contracts which may be rescinded or resolved
1.4.2. Voidable Contracts
1.4.3. Unenforceable Contracts
1.4.4. Void or Inexistent Contracts
1.4.4.1. Cause or object is contrary to law
1.4.4.2. Fictitious
1.4.4.3. Cause or object did not exist at the time of transaction
1.4.4.4. Object is outside the commerce of man
1.4.4.5. Contemplates an impossible service
1.4.4.6. Intention of the parties cannot be ascertained
1.4.4.7. Expressly prohibited by law
1.5. Classification of Contracts
1.5.1. Preparatory
1.5.2. Principal
1.5.3. Accessory
1.5.4. Informal
1.5.5. Formal
1.5.6. Unilateral
1.5.7. Bilateral
1.5.8. Onerous
1.5.9. Gratuitous
1.5.10. Commutative
1.5.11. Aleatory
1.5.12. Nominate
1.5.13. Innominate
2. Trusts
2.1. Kinds
2.1.1. Implied trusts
2.1.2. Resulting trusts
2.1.3. Constructive trusts
3. Special Contracts
3.1. Sales
3.1.1. Contract of sale
3.1.1.1. Emptio res separatae
3.1.1.2. Emptio spei
3.1.2. Contract to sell
3.1.2.1. Option contract
3.1.3. Actions available to vendee or vendor
3.1.3.1. Accion redhibitoria
3.1.3.2. Accion quanti minoris
3.1.4. Rights of vendee or vendor
3.1.4.1. Right of redemption
3.1.4.2. Right of pre-emption
3.2. Negotiable document of title
4. Lease
4.1. Rural and Urban Lands
4.2. Work and Labor Household Service
4.2.1. Contract of Labor
4.2.2. Contract for a Piece of Work
4.2.3. Common Carriers
5. Partnership
5.1. Kinds
5.1.1. As to object
5.1.1.1. Universal
5.1.1.2. Particular
5.1.2. As to liability
5.1.2.1. General
5.1.2.2. Limited
6. Agency
6.1. Essential Elements
6.1.1. Consent
6.1.1.1. Express
6.1.1.2. Implied
6.1.2. Object
6.1.3. Agent acts as a representative
6.1.4. Agent acts within scope of authority
6.2. Kinds
6.2.1. As to constitution
6.2.1.1. Express
6.2.1.2. Implied
6.2.2. As to form
6.2.2.1. Oral
6.2.2.2. Written
6.2.3. As to cause
6.2.3.1. Onerous
6.2.3.2. Gratuitous
6.2.4. As to extent
6.2.4.1. General
6.2.4.2. Special
6.2.5. As to third persons
6.2.5.1. Agent de jure
6.2.5.2. Agent by estoppel
6.3. Extinguishment
6.3.1. Revocation
6.3.2. Withdrawal of the agent
6.3.3. Death, civil interdiction, insanity or insolvency of principal or agent
6.3.4. Dissolution of the firm
6.3.5. Accomplishment of the purpose of agency
6.3.6. Expiration of the period
7. Loan
7.1. Real contract
7.1.1. Perfected upon delivery
7.2. Object is non-consummable
8. Deposit
8.1. Classes
8.1.1. Judicial
8.1.2. Extra judicial
9. Pledge, Mortage, Antichresis
9.1. Pledge
9.2. Real Estate Mortgage
9.3. Chattel Mortgage
9.4. Antichresis
10. Obligations
10.1. Nature and Effect of Obligations
10.1.1. Rights of the Creditor
10.1.1.1. Compel specific performance
10.1.1.2. Recover damages in case of breach
10.1.1.3. Ask that the obligation be complied with at the expense of debtor
10.1.2. Duties of Debtor
10.1.2.1. Deliver the thing
10.1.2.2. Take care of the thing
10.1.2.3. Deliver all accessions and accessories
10.1.2.4. Pay damages in case of breach
10.1.2.4.1. Default or mora
10.1.2.4.2. Fraud or dolo
10.1.2.4.3. Negligence or culpa
10.1.2.4.4. Contravention of tenor of obligation
10.2. Sources of Obligations
10.2.1. Law
10.2.2. Contracts
10.2.3. Quasi-contracts
10.2.4. Acts or omissions punishable by law
10.2.5. Torts or Quasi-delicts
10.3. Kinds of Obligations
10.3.1. Pure and Conditional Obligations
10.3.1.1. Suspensive
10.3.1.2. Resolutory
10.3.1.3. Potestative
10.3.1.4. Casual
10.3.1.5. Mixed
10.3.1.6. Possible
10.3.1.7. Impossible
10.3.1.8. Positive
10.3.1.9. Negative
10.3.1.10. Divisible
10.3.1.11. Indivisible
10.3.1.12. Conjunctive
10.3.1.13. Alternative
10.3.1.14. Express
10.3.1.15. Implied
10.3.2. Obligations with a Period
10.3.2.1. In general
10.3.2.2. As to requisites
10.3.2.3. As to fulfillment
10.3.2.4. As to influence upon obligation
10.3.2.5. As to retroactivity of effects
10.3.2.6. As to effect of will of debtor
10.3.3. Alternative and Facultative Obligations
10.3.3.1. As to object due
10.3.3.2. As to compliance
10.3.3.3. As to right of choice
10.3.3.4. As to effect of fortuitous loss
10.3.3.5. As to effect of culpable loss
10.3.4. Joint and Solidary Obligations
10.3.4.1. Obligacion mancomunada
10.3.4.2. Obligacion solidaria
10.3.4.3. Kinds of solidarity
10.3.4.3.1. Active
10.3.4.3.2. Passive
10.3.4.3.3. Mixed
10.3.5. Divisible and Indivisible Obligations
10.3.6. Obligations with a Penal Clause
10.3.6.1. Funcion coercitiva or de garantia
10.3.6.2. Funcion liquidatoria
10.3.6.3. Funcion estrictamente penal
10.4. Modes of Extinguishing Obligations
10.4.1. Payment or Performance
10.4.1.1. Forms of payment
10.4.1.1.1. Application of payment
10.4.1.1.2. Dacion en pago
10.4.1.1.3. Payment by cession
10.4.1.1.4. Tender of payment
10.4.1.1.5. Consignation
10.4.2. Loss of the Thing Due
10.4.3. Remission
10.4.3.1. Kinds of remission
10.4.3.1.1. As to form
10.4.3.1.2. As to extent
10.4.3.1.3. As to constitution
10.4.4. Confusion or Merger
10.4.5. Compensation
10.4.5.1. Kinds of compensation
10.4.5.1.1. As to cause
10.4.5.1.2. As to effect
10.4.6. Novation
10.4.6.1. As to essence
10.4.6.1.1. Objective or real
10.4.6.1.2. Subjective or personal
10.4.6.1.3. Mixed
10.4.6.2. As to its form
10.4.6.2.1. Express
10.4.6.2.2. Tacit
10.4.6.3. As to extent
10.4.6.3.1. Total
10.4.6.3.2. Partial
10.4.6.4. As to substitution of the person of the debtor
10.4.6.4.1. Expromision
10.4.6.4.2. Delegacion