Legal bond between two or more persons, made up of both a right and a duty
Personal right
Only enforceable against the other party (person) to that obligation
Real right
Enforceable against the world at large
Types of obligations
Moral obligations
Civil obligations
Natural obligations
Moral obligations
Not legal obligations, they derive from your idea of the right thing to do
Civil obligations
Legal obligations enforceable by right of action, and breach will arise if not fulfilled
Natural obligations
Have legal significance but cannot be enforced in court
Reciprocal obligations
Two obligations that are linked in that the performance of one obligation is owed in exchange for the other
Types of obligations
Simple
Alternative
Generic
Facultative
Simple obligation
Parties specify the exact performance to be made
Alternative obligation
Party can select two or more specified alternatives, debtor must make the chosen performance
Generic obligation
Party can select performance from a specified genus or 'family' of performances
Facultative obligation
Specifies the performance owed, but gives the debtor the right to choose to make a different specified performance
Divisible performance
Can be split into more than one performance if each sub-performance can be meaningfully performed on its own
Indivisible performance
Cannot be split
Divisible contract
Entire contract can be divided into several distinct contracts, so if one part is invalid/breached it doesn't affect the other parts
Terms
The stipulations that the parties include in their contract, and the provisions that by operation of law are included in contracts
Types of contract terms
Essentialia
Naturalia
Incidentalia
Essentialia
Distinctive terms used to classify a contract as one of the specific contracts recognised by the common law
Naturalia
Terms that are automatically included into certain types of contracts ex lege (implied by law), often serve to protect one of the parties from a common hazard
Incidentalia
Additional terms that the parties have agreed on that add to or vary the rights and duties automatically included by law into the particular contract
Types of contract terms
Express terms
Tacit terms
Express terms
Terms that are either written or spoken aloud (oral)
Tacit terms
Terms inferred from the conduct of the parties, arguably capable of giving rise to express terms
Officious bystander test
A hypothetical third party (a 'more imaginative friend') asks the parties what would happen in a situation they did not foresee and their agreement didn't provide for
Material terms
Vital to the performance of the contract, if breached, other party has right to cancel
Non-material terms
Breach only gives right to claim damages in absence of cancellation clause, e.g. payment and delivery
Types of conditions
Positive
Negative
Suspensive
Resolutive
Positive condition
Will be fulfilled if event occurs
Negative condition
Will be fulfilled once clear that event cannot occur
Suspensive condition
Obligations not enforceable until it is known whether uncertain future event occurs or not
Resolutive condition
Obligations enforceable unless and until an uncertain future event occurs/doesn't occur
Types of conditions
Potestative
Casual
Mixed
Potestative condition
Fulfillment depends on the creditor doing or not doing something entirely within their power
Casual condition
Depends on something beyond the control of the parties
Mixed condition
Depends partly on creditor's actions and partly on events beyond the parties' control
Doctrine of fictional fulfillment
Parties may not deliberately interfere with the fulfillment of a condition, if they do, the condition is deemed to be fulfilled / not fulfilled
Types of time clauses
Resolutive
Suspensive
Resolutive time clause
Obligations will terminate at a certain date/event