UBE Concurrent Estates
Last updated: May 2, 2026
Concurrent Estates questions are one of the highest-leverage areas to study for the UBE. This guide breaks down the rule, the elements you need to recognize, the named traps that catch most students, and a memory aid that scales to test day. Read it once, then practice the same sub-topic adaptively in the app.
The rule
At common law there are three concurrent estates: tenancy in common (TIC), joint tenancy (JT), and tenancy by the entirety (TBE). A TIC is the default — co-tenants hold separate, undivided, freely transferable and devisable interests with no right of survivorship. A JT requires the four unities of time, title, interest, and possession plus clear language of survivorship; on the death of a joint tenant, the decedent's interest is extinguished and the survivor takes the whole. A TBE is a JT between spouses with an added unity of marriage; in jurisdictions recognizing it, neither spouse alone can convey or encumber the property, and only joint creditors of both spouses can reach it. An inter vivos conveyance by one joint tenant of his interest severs the JT as to that share and converts it to a TIC; a JT will is ineffective because the survivorship interest passes outside probate.
Elements breakdown
Tenancy in Common (TIC)
A concurrent estate in which each co-tenant owns a separate, undivided fractional interest with the right to possess the whole, freely alienable, devisable, and inheritable, and with no right of survivorship.
- Two or more co-tenants
- Unity of possession only
- Each interest separately alienable and devisable
- No right of survivorship — interest passes by will or intestacy
Common examples:
- Default presumption when a deed conveys to two grantees without survivorship language
- "To Reyes and Liu" with no further words
Joint Tenancy (JT)
A concurrent estate in which co-tenants hold a single undivided interest with the right of survivorship; on a joint tenant's death, the survivor automatically takes the decedent's share outside probate.
- Four unities: time, title, interest, possession
- Clear language manifesting right of survivorship
- Created by single instrument (or modern statutory exception via straw)
- Right of survivorship — decedent's share extinguished at death
Common examples:
- "To Reyes and Liu as joint tenants with right of survivorship, and not as tenants in common"
- Two-step deed: O conveys to straw, who reconveys to O and A as JTWROS
Tenancy by the Entirety (TBE)
A joint tenancy between spouses recognized in roughly half of states, with an added unity of marriage and stronger creditor and conveyance protections.
- Valid marriage at conveyance
- Four unities of JT plus unity of marriage
- Survivorship between spouses
- Neither spouse alone can convey, encumber, or partition
- Only joint creditors of both spouses can reach property
Common examples:
- "To Reyes and Reyes, husband and wife, as tenants by the entirety"
- In TBE jurisdictions, conveyance "to H and W" with no further words is presumed TBE if marriage exists at delivery
Severance of Joint Tenancy
Acts that destroy one of the four unities and convert the JT (or the severing tenant's share) into a TIC, eliminating survivorship as to that share.
- Inter vivos conveyance by a joint tenant of his interest
- Mutual agreement among joint tenants to sever
- Partition action (judicial)
- Mortgage by one joint tenant in a title-theory state
- Lease by one joint tenant — majority view: no severance; minority view: temporary severance
Common examples:
- A, B, and C are JTs; A conveys to X. X holds 1/3 as TIC; B and C remain JTs in 2/3.
- Mutual written agreement to hold as TIC severs
Rights and Duties Among Co-tenants
Default rules governing possession, profits, expenses, and accounting between concurrent owners absent ouster or agreement.
- Each co-tenant has right to possess the whole; no duty to pay rent absent ouster
- Co-tenant in possession owes no rent unless ouster occurs
- Pro rata duty to contribute to taxes, mortgage interest, and necessary repairs
- No contribution for improvements, but improver gets credit at partition
- Rents from third parties shared pro rata after expenses
- Any co-tenant may compel partition (in kind preferred; by sale if impractical)
Common examples:
- Co-tenant A locks B out — ouster, A liable for B's share of rental value
- Co-tenant pays property taxes — entitled to contribution from co-tenants for their pro rata shares
Common patterns and traps
The Will-vs-Survivorship Trap
A joint tenant attempts to devise his JT interest by will. Candidates who have not internalized that survivorship operates at the instant of death — before probate — wrongly let the will control. The decedent's interest is extinguished at death; there is nothing left for the will to pass. The survivor takes the whole regardless of what the will says.
An answer choice that gives effect to the deceased joint tenant's will ("the property passes to the devisee under the will") instead of to the surviving joint tenant.
The Unilateral-Conveyance Severance
One of multiple joint tenants conveys her interest to a third party. The JT is severed only as to the conveying tenant's share. If three or more joint tenants remain, the non-severing tenants continue as joint tenants among themselves, and the grantee becomes a tenant in common with them. Candidates often wrongly conclude the entire JT is destroyed.
An answer choice that says "all three are now tenants in common" rather than recognizing that the two non-conveying joint tenants remain JTs in their 2/3 share.
The Mortgage-Severance Title-Theory Switch
Whether a mortgage by one joint tenant severs the JT depends on whether the jurisdiction follows lien theory (majority — no severance, mortgage attaches to mortgagor's interest only) or title theory (minority — mortgage transfers legal title and severs the JT). Bar questions signal which theory applies through facts about state law or by labeling the jurisdiction.
An answer choice that flatly states "the mortgage severed the joint tenancy" without conditioning on title vs lien theory, or that flips the rule.
The TBE-Creditor Shield
In tenancy-by-the-entirety jurisdictions, a creditor of only one spouse cannot reach property held as TBE. Only joint creditors of both spouses can levy. Candidates miss this when the facts highlight a tort judgment or contract debt against one spouse and the answer choices invite execution against the marital home.
An answer choice that lets the unilateral creditor of one spouse force a sale or attach a lien to TBE property.
The Ouster vs Mere Possession Cut
A co-tenant in sole possession owes no rent to absent co-tenants unless there has been an ouster — an affirmative act denying the other co-tenants their right to enter and possess. Mere occupancy is not ouster. Candidates often impose a rental obligation simply because one tenant lives there alone, missing the ouster requirement.
An answer choice that imposes liability for fair rental value based solely on sole occupancy, without identifying any exclusion or refusal of access.
How it works
Start every concurrent-estates question by classifying the estate. If the deed says nothing about survivorship, presume TIC — that is the modern default and reverses the old common-law JT presumption. If it says "as joint tenants with right of survivorship" and the four unities are present, you have a JT. If the grantees are spouses in a TBE jurisdiction, a conveyance to them is presumed TBE. Then ask whether anything has happened to sever a JT or destroy a TBE: a unilateral inter vivos conveyance severs as to that share, but a will does not because the survivorship interest vanishes at death before the will operates. Finally, work the duties: a co-tenant in sole possession owes no rent absent ouster, but pro rata contribution is owed for taxes, mortgage interest, and necessary repairs.
Worked examples
What are the parties' interests in Blackacre?
- A Okafor owns the entire fee simple, because Liu's will could not transfer a joint tenancy interest and Reyes's conveyance to Mira was void.
- B Mira owns 1/3 as a tenant in common, and Okafor owns 2/3 in fee simple by survivorship. ✓ Correct
- C Mira owns 1/3, Theo owns 1/3, and Okafor owns 1/3, all as tenants in common.
- D Mira and Okafor each own 1/2 as tenants in common.
Why B is correct: Reyes's 2022 quitclaim severed the joint tenancy as to her 1/3 share only; Mira took that 1/3 as a tenant in common with Liu and Okafor, while Liu and Okafor remained joint tenants of the other 2/3 between themselves. When Liu died in 2024, her interest was extinguished by survivorship and Okafor took the entire 2/3 — Liu's will was inoperative because there was no interest to pass at the moment of death. The result is Mira at 1/3 TIC and Okafor at 2/3 in fee.
Why each wrong choice fails:
- A: Half right on Liu's will, but wrong about Reyes's conveyance — a joint tenant may freely convey her interest inter vivos; the deed is valid and severs the JT as to that share. (The Unilateral-Conveyance Severance)
- C: Treats Liu's will as effective to pass her JT interest. Survivorship operates at the instant of death and extinguishes Liu's share before the will can act. (The Will-vs-Survivorship Trap)
- D: Wrongly concludes Reyes's conveyance destroyed the entire JT, leaving Mira and Okafor as 1/2 TICs. Severance is partial when three or more joint tenants exist — the non-severing tenants remain JTs as to their share. (The Unilateral-Conveyance Severance)
May Coastal Bank foreclose on Greenacre?
- A Yes, because Hassan owns an undivided one-half interest that he could mortgage and that Coastal Bank may now reach.
- B Yes, because the mortgage severed the tenancy by the entirety and converted it to a tenancy in common.
- C No, because in a tenancy by the entirety neither spouse acting alone can convey or encumber the property, and only joint creditors of both spouses may reach it. ✓ Correct
- D No, but Coastal Bank may foreclose on Hassan's survivorship interest contingent on Yara predeceasing him.
Why C is correct: In a TBE jurisdiction, the spouses are treated as a single legal entity owning the whole; neither may unilaterally convey, encumber, or subject the property to the claims of his or her individual creditors. Coastal Bank is a creditor of Hassan alone, not a joint creditor of both spouses, so it cannot reach Greenacre. The mortgage Hassan purported to grant is ineffective against the entirety estate.
Why each wrong choice fails:
- A: Treats the TBE like a JT or TIC where each owner has a separate alienable share. TBE is a unitary estate — neither spouse owns a separate transferable fractional interest that an individual creditor can reach. (The TBE-Creditor Shield)
- B: Confuses TBE with JT. A unilateral mortgage by one spouse cannot sever a TBE; severance of TBE generally requires divorce, joint conveyance, or mutual agreement. (The Mortgage-Severance Title-Theory Switch)
- D: States the minority approach used in a few TBE jurisdictions for survivorship interests, but the majority TBE rule denies the individual creditor any present or contingent reach against the entirety property. (The TBE-Creditor Shield)
What is Bauer most likely entitled to recover?
- A Half the fair rental value of the farmhouse, plus contribution toward Nguyen's tax, repair, and improvement expenditures.
- B Half the fair rental value of the farmhouse, but with Nguyen entitled to offset Bauer's pro rata share of taxes, repairs, and the cost of the garage.
- C Nothing on rent, because Nguyen's sole occupancy was not an ouster, but Bauer must contribute her pro rata share of the taxes and necessary repairs. ✓ Correct
- D Nothing at all, because a co-tenant in possession owes no duty of any kind to a co-tenant who chooses not to occupy.
Why C is correct: A co-tenant in sole possession owes no rent absent ouster, and there is no ouster here — Bauer never requested possession and was never excluded. However, each co-tenant has a pro rata duty to contribute to taxes and necessary repairs, so Bauer owes her 1/2 share of the $12,000 in taxes and the $4,000 roof repair. The $20,000 garage was an improvement, not a necessary repair, and Bauer owes no contribution for it (Nguyen would receive credit only at partition, capped at the value added).
Why each wrong choice fails:
- A: Imposes rent without ouster and treats improvements like necessary repairs. Mere sole occupancy is not ouster, and improvements are non-contributory. (The Ouster vs Mere Possession Cut)
- B: Same ouster error as A on the rent side, and wrongly treats the garage as a contribution-eligible expense rather than an improvement that is recoverable only at partition and only up to value added. (The Ouster vs Mere Possession Cut)
- D: Correctly rejects the rent claim but wrongly denies Bauer any recovery. Co-tenants owe pro rata contribution for taxes and necessary repairs even when one occupies alone.
Memory aid
Four unities mnemonic: "TTIP" — Time, Title, Interest, Possession (add Marriage for TBE = TTIPM). For severance: "A Mortgage Might Sever" — Alienation always severs; Mortgage severs in title-theory states only; Murder/contract/lease — depends.
Key distinction
The pivotal cut is severance: a joint tenant's lifetime conveyance severs and destroys survivorship as to that share, but a joint tenant's will does nothing because the decedent's interest is extinguished at the moment of death — there is nothing for the will to pass.
Summary
Classify the estate by deed language and the four unities, then test for severance and apply the default duties of contribution and possession.
Practice concurrent estates adaptively
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Start your free 7-day trialFrequently asked questions
What is concurrent estates on the UBE?
At common law there are three concurrent estates: tenancy in common (TIC), joint tenancy (JT), and tenancy by the entirety (TBE). A TIC is the default — co-tenants hold separate, undivided, freely transferable and devisable interests with no right of survivorship. A JT requires the four unities of time, title, interest, and possession plus clear language of survivorship; on the death of a joint tenant, the decedent's interest is extinguished and the survivor takes the whole. A TBE is a JT between spouses with an added unity of marriage; in jurisdictions recognizing it, neither spouse alone can convey or encumber the property, and only joint creditors of both spouses can reach it. An inter vivos conveyance by one joint tenant of his interest severs the JT as to that share and converts it to a TIC; a JT will is ineffective because the survivorship interest passes outside probate.
How do I practice concurrent estates questions?
The fastest way to improve on concurrent estates is targeted, adaptive practice — working questions that focus on your specific weak spots within this sub-topic, getting immediate feedback, and revisiting items you missed on a spaced-repetition schedule. Neureto's adaptive engine does this automatically across the UBE; start a free 7-day trial to see your sub-topic mastery climb in real time.
What's the most important distinction to remember for concurrent estates?
The pivotal cut is severance: a joint tenant's lifetime conveyance severs and destroys survivorship as to that share, but a joint tenant's will does nothing because the decedent's interest is extinguished at the moment of death — there is nothing for the will to pass.
Is there a memory aid for concurrent estates questions?
Four unities mnemonic: "TTIP" — Time, Title, Interest, Possession (add Marriage for TBE = TTIPM). For severance: "A Mortgage Might Sever" — Alienation always severs; Mortgage severs in title-theory states only; Murder/contract/lease — depends.
What's a common trap on concurrent estates questions?
JT will/devise — survivorship beats the will
What's a common trap on concurrent estates questions?
Mortgage by one JT in lien-theory vs title-theory state
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