Contract Type |
Required Formality
|
Consequence of Non-Compliance
|
Sale of real estate
|
Notarial deed + registration
|
Nullity; unenforceable against third parties
|
Lease agreement > 1 year
|
Written form
|
Valid but difficult to prove if oral
|
Consumer credit agreements
|
Written form + disclosures
|
Possible sanctions; contract may be voidable
|
Loan agreements with guarantees
|
Notarization + registration
|
Guarantees unenforceable
|
General commercial contracts
|
Usually no specific form required
|
Valid but proof can be difficult
|
Effects of Nullity