Doctrinal Function of the Classification
Actions are classified as in personam, in rem, or quasi in rem according to the object of the suit, the jurisdictional basis for binding persons, and the legal reach of the judgment.
The classification does not determine subject-matter jurisdiction, which is conferred by law; it determines whether the court must acquire jurisdiction over the defendant personally, over the res, or over both to grant the particular relief sought.
The controlling test is the complaint read as a whole, especially the principal allegations and relief prayed for. The caption, the form of summons, and the mere fact that specific persons are named do not control if the object of the suit shows a different procedural character.
The res is the property, status, estate, fund, title, lien, or legal relationship placed under judicial authority. In status cases, the res is the legal status itself; in property cases, the res is the property or the interest in it.
Actions In Personam
An action in personam is an action directed against a particular defendant to impose a personal liability, duty, obligation, or restraint. The judgment is enforceable against the defendant personally because the court adjudicates the defendant's personal responsibility.
The usual examples are actions for collection of a sum of money, damages, enforcement of a contract, specific performance, injunction against a person, rescission with personal restitution, and other suits where the defendant is ordered to pay, do, or refrain from doing an act.
Jurisdiction over the person of the defendant is indispensable in an action in personam. It is acquired by valid service of summons or by voluntary appearance, and the absence of such jurisdiction makes a personal judgment void as to that defendant.
Personal or substituted service is the ordinary mode for binding a defendant in an action in personam. Constructive service by publication, standing alone, does not support a personal money judgment against a defendant who has not been personally served and has not appeared.
Voluntary appearance is equivalent to service of summons because the defendant submits to the court's authority. A defendant may, however, specially challenge jurisdiction over his person without thereby consenting to the court's authority to render a personal judgment.
A judgment in personam binds only the parties and their successors or privies, subject to ordinary rules on conclusiveness and res judicata. It does not bind the whole world, but once validly rendered it may be enforced by execution against the judgment debtor's property because the liability is personal.
An action involving real property is not automatically in rem. If the principal relief is to compel a named defendant to convey property, reconvey title, pay damages, perform a contractual undertaking, or surrender possession because of a personal obligation, the suit may be in personam although land is involved.
The presence of an incidental prayer affecting property does not remove the need for personal jurisdiction when the court is asked to impose personal liability. Conversely, a court that has jurisdiction only over the res may not enlarge that authority into a general personal judgment.
Actions In Rem
An action in rem is a proceeding directed against the thing or status itself, and its object is to determine the condition, title, or status of the res in a manner binding upon the whole world.
The essential feature of an action in rem is that the judgment operates directly on the res, not primarily on the personal liability of a defendant. Persons are notified because they may have interests to assert, but the proceeding is not founded on personal claims against them.
Examples include original land registration, cadastral proceedings, probate of a will as to its due execution and validity, certain settlement proceedings involving the estate, forfeiture proceedings directed at property, and status proceedings where the law requires a judicial declaration of status.
In an action in rem, jurisdiction over the person of every interested claimant is not required. What is required is jurisdiction over the res and notice reasonably calculated to inform interested persons, commonly through publication and, where the rules require or the identities are known, direct notice.
Publication is consistent with the nature of an in rem proceeding because the proceeding calls on all persons claiming an interest in the res to appear and assert that interest. The publication does not create personal liability; it supplies constructive notice for a judgment limited to the res or status.
A judgment in rem is conclusive upon the whole world as to the status or condition of the res, provided the court had jurisdiction and the notice required by due process and the governing rules was given. This explains why decrees in land registration and probate orders on the validity of a will carry effects beyond the named participants.
Although in rem proceedings bind broadly, they do not dispense with due process. Known claimants cannot be deliberately ignored when the rules require personal, mailed, or other direct notice, and defective notice may impair the judgment's binding effect as to affected interests.
Actions Quasi In Rem
An action quasi in rem is directed against a particular person but its object is to subject that person's interest in specific property to a claim, lien, burden, or adjudication. It stands between in personam and in rem because it involves named parties but the judgment is limited to the res.
The court's authority in a quasi in rem action rests on its jurisdiction over the property or interest within its territorial or legal control. Personal jurisdiction over the defendant is not indispensable for relief confined to that property, but it is indispensable for any personal liability beyond it.
Quasi in rem actions include judicial foreclosure of a mortgage, enforcement of a lien, partition among identified co-owners, quieting of title against specified adverse claimants, proceedings involving attached property of a nonresident defendant, and suits that determine particular parties' interests in specific property.
A quasi in rem judgment binds only the interests of the parties in the property that is the subject of the action. It does not bind the whole world in the same way as an in rem judgment, and it does not create a general personal liability unless the court also acquired jurisdiction over the defendant's person.
Where a plaintiff sues on a personal claim and attaches the defendant's property at the commencement of the action, the attachment supplies the jurisdictional foundation for a quasi in rem adjudication if personal jurisdiction is lacking. The judgment may be satisfied from the attached property but cannot extend to a personal deficiency without personal jurisdiction.
In mortgage foreclosure, the sale of the mortgaged property is relief against the res. A deficiency judgment, however, is personal in character and requires jurisdiction over the person of the debtor because it goes beyond the mortgaged property.
In partition, the court adjudicates the respective interests of the parties in the co-owned property and may order division, sale, or accounting incident to that property. The decree is quasi in rem because it binds the parties' shares in the property rather than imposing liability on strangers to the proceeding.
Comparative Effects
| Point of comparison | In personam | In rem | Quasi in rem |
|---|---|---|---|
| Primary object | To impose a personal obligation, liability, command, or restraint on a defendant | To determine the status, title, or condition of a res as against the whole world | To subject a named person's interest in property to a claim or adjudication |
| Jurisdictional foundation | Jurisdiction over the defendant's person | Jurisdiction over the res, estate, property, or status | Jurisdiction over the specific property or interest, with personal jurisdiction needed only for personal liability |
| Notice | Valid service of summons or voluntary appearance | Publication and other notice required for persons interested in the res | Service or publication sufficient to notify interested parties, depending on the defendant's location and the governing rule |
| Effect of judgment | Binds the parties and privies personally | Binds the whole world as to the res or status | Binds the parties' interests in the property subject of the action |
| Relief beyond the res | Available if pleaded and proven | Generally unavailable because the judgment operates on the res or status | Unavailable unless the court also has personal jurisdiction over the defendant |
Summons, Publication, and Extraterritorial Service
The rules on summons reflect the difference among the three classifications. In personam actions require service that brings the defendant personally under the court's authority, while in rem and quasi in rem actions may proceed through constructive or extraterritorial service when the governing conditions are present.
Extraterritorial service is appropriate when the action affects the personal status of the plaintiff, relates to property within the Philippines in which the defendant claims an interest, seeks to exclude the defendant from an interest in such property, or involves property of the defendant attached within the Philippines.
Constructive service is not a procedural shortcut for converting a personal claim into a valid personal judgment. Its proper function is to notify a defendant or interested person that the court will act on a status, property, lien, or attached res within its authority.
When the defendant is outside the Philippines and the action is purely in personam, the court cannot render a personal judgment based only on publication or extraterritorial service. The plaintiff must obtain valid personal jurisdiction, secure voluntary appearance, or limit the relief to a res over which the court has authority.
When the action is in rem or quasi in rem, the defendant's nonappearance after valid constructive service permits the court to proceed, but the judgment remains confined to the res, status, or property interest placed in issue.
Determining the Nature of the Action
The first inquiry is the principal relief sought. A demand for payment, damages, specific performance, or an order compelling a person to act points to an action in personam; a demand determining the status of property or a legal status as against all claimants points to an action in rem; a demand determining particular parties' interests in identified property points to an action quasi in rem.
The second inquiry is the intended binding effect. If the plaintiff seeks to bind only the defendant personally, the action is in personam. If the plaintiff seeks a decree binding all persons as to the res, the action is in rem. If the plaintiff seeks to bind only the defendant's interest in property, the action is quasi in rem.
The third inquiry is whether the court must coerce the defendant personally to grant full relief. If personal coercion is necessary, personal jurisdiction is required. If the court can grant complete relief by acting on the res, jurisdiction over the res and proper notice may be sufficient.
Prayers for damages, attorney's fees, or costs do not automatically change the nature of the main action, but any award imposing personal liability must rest on personal jurisdiction. A court may validly settle title or foreclose a lien on property while lacking authority to impose a personal deficiency or damages award.
Naming specific defendants in a land or status proceeding does not necessarily make the suit in personam, because notice to interested persons is part of due process in proceedings affecting a res. Likewise, describing property in a complaint for damages does not make the action in rem unless the property itself is the object of adjudication.
Procedural Consequences
A personal judgment rendered without valid service or voluntary appearance is void for lack of jurisdiction over the person. The defect is jurisdictional because the court has no authority to impose personal liability on one who was not brought before it in the manner required by due process.
A judgment in rem rendered without jurisdiction over the res, or without the notice required by law, lacks the foundation for binding the world. Jurisdiction over the res and notice to interested persons are the procedural substitutes for personal jurisdiction over every possible claimant.
A quasi in rem judgment rendered without control over the property is ineffective because the property is the source and limit of the court's authority. If the property is not within the Philippines, not attached, or not otherwise placed under judicial authority, constructive service cannot sustain relief against it.
The classification also affects execution. In personam judgments may be executed generally against the judgment debtor's leviable property; in rem judgments operate directly on the res or status; quasi in rem judgments are enforced against the specific property or interest adjudicated.
The classification does not eliminate other procedural requirements such as venue, real-party-in-interest rules, indispensable-party rules, cause of action, and compliance with special proceedings. It simply identifies the jurisdictional relationship among the court, the parties, and the res.
Proper classification prevents overbroad judgments. A court may bind the whole world only in a true in rem proceeding, may bind a defendant personally only after acquiring jurisdiction over that defendant, and may bind property interests only when the res has been properly brought under judicial authority.