When is a preliminary contract binding?
A preliminary contract obliges parties to enter a future principal contract and identifies its essential terms.
Formation, validity and legal effects
Parties and essential performances of the principal agreement must be determinable. Where the law requires a special form for the principal contract, the preliminary contract generally follows it. Labels such as minutes, letter of intent or reservation do not decide binding force; wording and intention are examined. Party autonomy is important in private law, but mandatory rules, public policy, personality rights and good faith impose limits. Parties, subject matter, form, authority to represent, conditions and time terms are examined separately. A document's heading does not alone determine its legal character; common intention, negotiations and actual performance may also matter. Failure to follow a required form may affect validity in some transactions and proof in others.
Proof, disputes and protective remedies
Nonperformance may lead to a demand to conclude the principal contract, damages or return of a payment, depending on the transaction. Formal execution and registration are particularly important for real estate. Deadlines, conditions and withdrawal provisions should be stated clearly. Contracts, correspondence, payment records, delivery documents and the timeline are assessed together in a dispute. Notice, withdrawal, termination, adaptation, damages and specific performance have different conditions and effects. Limitation periods should not be confused with forfeiture periods, and family or personal-status law may involve special public-policy procedures. Where a transaction has serious financial or personal effects, case-specific review is preferable to a generic template.