I Concurrent Ownership

Concurrent ownership exists when two or more people hold present interests in the same property at the same time. Each co-owner has some present right in the property, but the quality of that right depends on the form of co-ownership.

The three major forms are tenancy in common, joint tenancy, and tenancy by the entirety.

These forms answer several questions. Does each owner have a right to possess the whole? Does one owner have a right of survivorship when another dies? Can an owner transfer the interest during life? Can an owner devise the interest by will? Can creditors reach the interest? Can one owner force partition?

Students should not treat “co-owner” as a complete legal label. The form of co-ownership matters.

II. Tenancy in Common

The tenancy in common is the default modern form of co-ownership. Each tenant in common owns a separate fractional share, but each has an undivided right to possess the whole property.

This means a tenant in common who owns a one-fourth share does not own a specific bedroom, corner, acre, or floor unless the parties separately agree. The tenant owns a one-fourth interest in the entire property and has the right to possess the whole along with the other co-tenants.

There is no right of survivorship. When a tenant in common dies, that tenant’s share does not automatically pass to the surviving co-tenants. Instead, the share passes by will or intestacy.

For example, if A and B own Blackacre as tenants in common, each with a one-half interest, and A dies leaving a will devising all property to C, C takes A’s one-half share. B does not automatically become sole owner.

A tenant in common’s share is transferable during life, devisable by will, and descendible by intestacy. This makes the tenancy in common flexible and alienable. Because modern law favors free transferability, courts often presume a tenancy in common unless clear survivorship language creates another form.

III. Joint Tenancy

A joint tenancy includes a right of survivorship. When one joint tenant dies, that tenant’s interest disappears, and the surviving joint tenant or tenants own the property.

Suppose A and B own Blackacre as joint tenants with right of survivorship. If A dies, B owns the whole. A’s interest does not pass through A’s will or intestacy. The survivorship feature avoids probate as to that interest, but it also means A cannot devise the joint tenancy interest after death.

The Four Unities

Traditionally, creating a joint tenancy required four unities. If any are missing, a tenancy in common is created instead.

Modern statutes may relax or modify these requirements, but students should understand them because they explain why certain transfers sever a joint tenancy.

IV. Severance of Joint Tenancy

Severance destroys the right of survivorship as to the severed share and converts that share into a tenancy in common.

The most common form of severance is conveyance. If A and B are joint tenants, and A conveys A’s interest to C, the joint tenancy is severed as to A’s share. C and B become tenants in common. B no longer has a right of survivorship in A’s former share.

Severance can be partial in larger groups. If A, B, and C are joint tenants, and A conveys to D, then D owns A’s one-third share as tenant in common with B and C. B and C may remain joint tenants between themselves as to their two-thirds share, depending on the jurisdiction and conveyance.

V. Tenancy by the Entirety

Tenancy by the entirety is a marital estate recognized in some jurisdictions. It is held by married spouses and includes a right of survivorship.

The traditional idea is that the spouses are treated as a single legal unit for purposes of the estate. Neither spouse acting alone can unilaterally sever the tenancy by the entirety. This makes it different from joint tenancy, where one joint tenant usually can sever by conveyance.

Tenancy by the entirety often provides special protection against creditors of only one spouse, though the details vary. In some jurisdictions, a creditor of one spouse alone cannot force sale of entirety property. A creditor of both spouses may have stronger rights.

The estate usually ends or changes upon divorce, often converting into a tenancy in common or another form depending on statute. Death of one spouse leaves the survivor owning the whole through survivorship.

VI Rights Among Co-Tenants

Each co-tenant has the right to possess the whole property. This is true even if the co-tenants own unequal fractional shares. A tenant in common with a one-fourth interest has a right to possess the whole along with the tenant who owns three-fourths, unless the parties agree otherwise or a court orders partition.

Because each co-tenant has a right to possess, a co-tenant in possession generally does not owe rent to other co-tenants merely for occupying the property. Occupancy alone is not wrongful.

There are exceptions:

• Agreement: Rent is owed if there is an agreement to pay rent.
• Ouster: Rent may be owed if one co-tenant ousts another. Ouster occurs when one co-tenant wrongfully excludes another from possession. If A changes the locks and refuses to allow B to enter jointly owned property, A may be liable to B.
• Exploitation/Accounting: Some jurisdictions require accounting when a co-tenant in possession exploits the property beyond ordinary use, especially if receiving profits from natural resources (mining, logging) or commercial use.

VII. Rents, Profits, Expenses, and Improvements

Third-Party Rents: Co-tenants must usually account for rents received from third parties. If A and B own a duplex as tenants in common, and A leases the entire property to Tenant and collects rent, A generally must account to B for B’s share of the net rents.

Necessary Expenses: Co-tenants may have rights to contribution for necessary expenses. These often include property taxes, mortgage interest, and necessary repairs. If A pays the full property tax bill to prevent loss of the property, A may seek contribution from B for B’s share.

Voluntary Improvements: Treated differently. A co-tenant who improves the property without agreement usually cannot force the other co-tenants to pay for the improvement merely because it increased value. The law does not let one co-owner impose unwanted investment costs on another.

However, improvements may be considered during partition or accounting. If A pays to add a valuable improvement and the property is later sold, A may receive credit for the increase in value attributable to the improvement, depending on the circumstances.

VIII. Partition

Partition allows co-tenants to end co-ownership. Because co-ownership can become difficult, the law usually gives tenants in common and joint tenants a right to partition. Tenancy by the entirety may be different because of its marital nature.

There are two main forms:

Partition highlights a central tension in Property: one owner may want continued possession, while another wants liquidity and exit. The law balances these interests through equitable division or sale.

IX Leaseholds and the Landlord-Tenant Relationship

A lease creates both a contract relationship and a property interest. The tenant receives a present possessory estate. The landlord retains a future interest, usually a reversion.

This dual nature matters. Because a lease is a contract, lease promises may be enforced as covenants. Because a lease is a property interest, possession, transfer, eviction, and estates concepts also apply.

For example, if Landlord leases an apartment to Tenant for one year, Tenant has the right to possess the apartment during that year. Landlord owns the larger estate but cannot treat the apartment as if Tenant had no rights. When the lease ends, possession returns to Landlord.

Leases therefore divide the property bundle. Tenant receives possession. Landlord retains ownership, future possession, and rights under the lease.

The Four Leasehold Estates

XIII. Delivery of Possession

At the start of a lease, what must the landlord deliver if a prior tenant is holding over?

Many modern courts and statutes favor actual delivery (English rule) because the landlord is usually in a better position to remove holdovers. On an exam, apply the rule supplied, or discuss both.

XIV. Rent and Landlord Remedies

The tenant’s most basic duty is to pay rent. If the tenant fails to pay, the landlord may seek remedies such as unpaid rent, eviction, damages, or other statutory relief.

Modern law heavily restricts self-help eviction. A landlord usually may not simply change locks, remove belongings, shut off utilities, or physically force the tenant out. Instead, the landlord generally must use judicial eviction procedures.

This rule reflects concerns about peace, safety, and abuse. Even a tenant who breaches the lease has possessory rights until lawfully removed. Landlord remedies are often governed by statute requiring notice, a waiting period, and a court order.

XV Assignment and Sublease

Tenants may transfer leasehold interests unless the lease validly restricts transfer. The two key forms are assignment and sublease.

• An assignment transfers the tenant’s entire remaining lease term to another person. The original tenant gives away the whole leasehold interest.
• A sublease transfers less than the entire remaining term, leaving a reversion in the original tenant.

The distinction depends on the interest transferred, not the label the parties use. Calling something a “sublease” does not make it one if the tenant transferred the entire remaining term.

XVI. Privity in Assignments and Subleases

Privity explains who can sue whom on lease obligations.

This area is highly testable because students must distinguish possession, contract, and estate relationships.

XVII. Tenant Duties

A tenant must pay rent, avoid waste, and comply with lease obligations.

Waste includes conduct that damages or substantially changes the property beyond permitted use. Voluntary waste may include intentional destruction. Permissive waste may include neglect. Ameliorative waste may involve unauthorized substantial alterations, even if value increases.

A tenant must also comply with lease covenants, such as limits on use, pets, alterations, noise, assignment, subletting, or maintenance obligations. Modern residential leases are also heavily regulated by statutes that may override unfair or unlawful lease terms.

XVIII Covenant of Quiet Enjoyment

The covenant of quiet enjoyment protects the tenant’s right to possess and enjoy the leased premises without wrongful interference by the landlord or someone with superior title.

• Actual eviction: Occurs when the tenant is physically excluded from all or part of the premises (e.g., landlord changes the locks).
• Constructive eviction: Occurs when the landlord substantially interferes with the tenant’s use and enjoyment, making the premises unsuitable, and the tenant vacates within a reasonable time.

Examples of constructive eviction may include failure to provide essential services, serious flooding, recurring unlawful entries by the landlord, or conditions that make the premises unusable. Many jurisdictions require the tenant to give notice and an opportunity to cure before leaving.

Constructive eviction is powerful but demanding. The tenant usually must actually leave. If the tenant stays, the argument is weaker, though other remedies may exist.

XIX. Implied Warranty of Habitability

The implied warranty of habitability applies mainly to residential leases. It requires that rental premises be fit for basic human habitation.

This doctrine transformed modern landlord-tenant law. Under older property concepts, the lease was treated mainly as a conveyance, and tenants often bore responsibility for conditions. Modern residential law recognizes that tenants are buying a habitable place to live, and landlords are better positioned to maintain essential systems.

Serious defects involving heat, water, plumbing, electricity, sanitation, structural safety, locks, pest infestation, mold, or housing code violations may breach the warranty. Minor annoyances usually are not enough.

Tenant remedies vary by jurisdiction. They may include rent withholding, repair and deduct, damages, termination, rent abatement, or statutory remedies. The implied warranty of habitability generally cannot be waived in residential leases.

XX. Retaliatory Eviction

Retaliatory eviction doctrine protects tenants who assert legal rights. A landlord generally may not evict, raise rent, reduce services, or otherwise penalize a tenant because the tenant reported code violations, complained to authorities, joined a tenant organization, or asserted rights under the lease or housing law.

The doctrine prevents landlords from using eviction to punish lawful tenant activity. Some statutes create presumptions if the landlord acts shortly after protected tenant activity.

XXII. Bringing the Chapter Together

This chapter shows how property rights can be shared, divided, transferred, and limited.

Co-tenants share present ownership. Each has rights to possess the whole, but survivorship, transferability, creditor rights, and partition depend on the form of co-ownership.

Landlords and tenants divide ownership and possession. The tenant has a present possessory estate. The landlord has future rights and contractual claims. Assignees and subtenants may enter the picture, creating questions of privity and liability.

Modern landlord-tenant law also shows that property rights are shaped by social policy. Habitability, quiet enjoyment, anti-retaliation rules, and restrictions on self-help eviction limit the owner’s power in order to protect possession, safety, and fairness.