Buying a House with an Unmarried Partner in New Hampshire: Titling and Legal Protections

Current as of: October 28, 2026 Residential Real Estate Transactions New Hampshire
Unmarried couples buying a New Hampshire home default to Tenants in Common unless the deed explicitly states Joint Tenancy with Right of Survivorship. Under N.H. Rev. Stat. Ann. § 477:18 and N.H. Rev. Stat. Ann. § 547-C:29, a written cohabitation agreement protects unequal down payments if partners separate.

Unlike married spouses whose real estate is subject to equitable distribution in family court under N.H. Rev. Stat. Ann. § 458:16-a, unmarried partners purchasing a home in Manchester, Nashua, or Portsmouth receive zero statutory divorce protections if their relationship ends. Furthermore, New Hampshire does not recognize common-law marriage for living partners-the state's cohabitation statute, N.H. Rev. Stat. Ann. § 457:39, applies exclusively to inheritance rights after one partner dies following at least three years of continuous cohabitation. During your lifetimes, New Hampshire courts treat unmarried co-owners as legal strangers governed by real property and contract law.

Because there is no divorce court safety net, the exact wording printed on your deed at the county Registry of Deeds and any written agreement you sign before closing will dictate who owns the equity, what happens if one partner stops paying the mortgage, and who inherits the house upon death. Taking proactive steps to structure your title and execute a cohabitation agreement can prevent an expensive court-ordered partition sale down the road.

Joint Tenancy with Right of Survivorship vs. Tenants in Common in New Hampshire

When two unmarried individuals take title to residential real estate in New Hampshire, state law enforces a strict statutory presumption regarding how they hold ownership. Under N.H. Rev. Stat. Ann. § 477:18, every conveyance of real estate made to two or more persons is legally construed to create a Tenancy in Common unless the deed expressly states that the grantees hold the property as joint tenants with rights of survivorship.

Unmarried buyers should also understand a historical quirk of New Hampshire property law: New Hampshire abolished "Tenancy by the Entirety" as a separate marital estate in 1860, and under N.H. Rev. Stat. Ann. § 477:18, using that phrase in a deed simply creates a standard joint tenancy, as affirmed by the New Hampshire Supreme Court in Estate of Croteau v. Croteau, 143 N.H. 177 (NH Supreme Court 1998) and Mamalis v. Bornovas, 112 N.H. 423 (NH Supreme Court 1972). Consequently, unmarried couples in New Hampshire choose between two primary deed structures or an entity structure.

Tenants in Common (TIC): Protecting Unequal Shares and Heirs

If your Warranty Deed (N.H. Rev. Stat. Ann. § 477:27) or Quitclaim Deed (N.H. Rev. Stat. Ann. § 477:28) simply lists both partners' names without survivorship language, or explicitly states "as tenants in common," each partner holds an individual, divisible fractional interest in the property. You can specify unequal ownership percentages directly on the face of the deed-such as a 70% / 30% split-to reflect unequal down payments and mortgage obligations.

Crucially, a Tenancy in Common carries no right of survivorship. If one partner passes away without a valid Last Will and Testament, their fractional share of the house does not go to the surviving partner; instead, it passes to the deceased partner's biological heirs (such as parents, children, or siblings) under New Hampshire's intestate succession statute, N.H. Rev. Stat. Ann. § 561:1, through a formal estate proceeding at the New Hampshire Circuit Court Probate Division, Concord or the New Hampshire Circuit Court Probate Division, Nashua.

Joint Tenancy with Right of Survivorship (JTWROS): Avoiding Probate

To ensure that the surviving partner automatically owns 100% of the home if the other partner dies, N.H. Rev. Stat. Ann. § 477:18 requires adding the exact words "as joint tenants with rights of survivorship" immediately following the grantees' names in the granting clause of the deed. Under traditional joint tenancy rules, both partners hold an equal 50% / 50% undivided interest (requiring the four unities of time, title, interest, and possession).

When one joint tenant dies, their interest extinguishes immediately by operation of law, and sole title vests in the surviving partner without going through Probate Court. Better yet, under N.H. Rev. Stat. Ann. § 78-B:2, transfers occurring by the death of a co-tenant in real estate held by joint tenancy are 100% exempt from the New Hampshire Real Estate Transfer Tax. Additionally, while both partners occupy the home as their primary residence, co-owners are entitled to claim a statutory homestead exemption against third-party creditors under N.H. Rev. Stat. Ann. § 480:1, protecting up to $400,000 for an individual owner and up to a total combined cap of $550,000 for multiple co-owners.

Ownership StructureDeed Language RequiredOwnership SplitWhat Happens at Death?Best Suited For
Tenants in Common (TIC)Default under N.H. Rev. Stat. Ann. § 477:18 or "as tenants in common"Equal (50/50) or custom unequal shares (e.g., 75/25) stated in deedDeceased partner's share goes through NH Probate Court to heirs or beneficiaries named in a WillPartners contributing unequal cash or partners with children from prior relationships
Joint Tenancy (JTWROS)Must state "as joint tenants with rights of survivorship" per N.H. Rev. Stat. Ann. § 477:18Strictly equal (50/50) undivided legal interestAutomatically transfers 100% to surviving partner outside of probate; exempt from RETTCommitted partners wanting automatic survivorship protection (paired with a cohabitation contract)
Revocable Living Trust or LLCTitle vested in the Trustee (N.H. Rev. Stat. Ann. § 564-B:4-401) or NH LLCGoverned by Trust Schedule or LLC Operating AgreementPasses privately according to Trust terms or Operating Agreement without Probate CourtHigh-net-worth couples, multi-family house hackers, or complex blended families

Step-by-Step Guide to Structuring Co-Ownership in New Hampshire

Step 1: Handling Unequal Down Payments and Mortgage Contributions

A common mistake occurs when one partner contributes $80,000 toward the down payment and closing costs while the other partner contributes $10,000, yet they take title as 50/50 joint tenants with no written side agreement. If the couple breaks up a year later, the partner who contributed $10,000 may demand 50% of the total sale proceeds based on the face of the deed.

Furthermore, New Hampshire courts strictly enforce the Statute of Frauds (N.H. Rev. Stat. Ann. § 506:1), which mandates that any contract concerning an interest in land is unenforceable unless it is in writing and signed by the party to be charged. In Tapley v. Tapley, 122 N.H. 727 (NH Supreme Court 1982), the New Hampshire Supreme Court also refused to recognize implied contracts for domestic or household services between unmarried cohabitants. Therefore, if one partner contributes more cash and the other contributes "sweat equity" or renovation labor, those exact dollar credits must be memorialized in a signed written contract before closing.

Step 2: Drafting Cohabitation Agreements and Property Sharing Contracts

Even when couples choose Joint Tenancy with Right of Survivorship so the house passes smoothly upon death, they can protect unequal financial contributions during life by signing a Cohabitation and Property Ownership Agreement (also called a Joint Venture or Co-Tenancy Agreement). Under N.H. Rev. Stat. Ann. § 547-C:29, New Hampshire courts explicitly consider written contractual agreements between co-owners when dividing real estate. A comprehensive New Hampshire cohabitation property agreement should establish:

  • Capital Contribution Ledger: The exact dollar amount each partner paid toward the earnest money deposit, down payment, New Hampshire Real Estate Transfer Tax, and closing costs, specifying that these initial contributions are reimbursed off the top before net appreciation is split.
  • Ongoing Expense Allocation: How monthly mortgage principal and interest, municipal property taxes, homeowners insurance, utilities, and routine maintenance are split (for example, 50/50 or proportional to income), ideally routed through a dedicated joint house checking account.
  • Capital Improvement Approvals: A rule requiring written consent from both partners for any non-emergency renovation exceeding $2,500, along with how the paying partner is credited if one person funds a new roof or kitchen remodel.
  • Default and Cure Clauses: What happens if one partner loses their job or refuses to pay their share of the mortgage, allowing the paying partner to advance funds and treat the advance as an interest-bearing loan secured against the defaulting partner's equity share.

Step 3: Executing and Recording the Deed and Notice of Agreement

At closing, verify that the granting clause of your deed contains the exact statutory phrasing required by N.H. Rev. Stat. Ann. § 477:18 before signing. Once notarized, the settlement agent records the deed at the appropriate county Registry of Deeds pursuant to N.H. Rev. Stat. Ann. § 477:3-a-such as the Hillsborough County Registry of Deeds, Nashua, the Rockingham County Registry of Deeds, Brentwood, or the Strafford County Registry of Deeds, Dover-and submits Form CD-57-P, New Hampshire, Department of Revenue Administration, Real Estate Transfer Tax Declaration of Consideration (Purchaser) and Form PA-34, New Hampshire, Department of Revenue Administration, Inventory of Property Transfer. While the full Cohabitation Agreement is usually kept private to protect financial details, your attorney can record a brief Memorandum of Property Agreement at the Registry of Deeds to put third parties on notice of your buyout rights.

Step 4: Exit Strategies if the Relationship Ends (Buyouts and Partition Actions)

If an unmarried couple separates, removing one partner's name from the deed does not remove their name from the mortgage note. An amicable exit typically follows a structured buyout: the remaining partner refinances the mortgage solely into their own name (or obtains a formal lender release) and pays the departing partner their agreed-upon equity share in exchange for a signed Quitclaim Deed (N.H. Rev. Stat. Ann. § 477:28). Be aware of a major New Hampshire tax rule: while transfers between divorcing spouses under a final divorce decree are exempt from the Real Estate Transfer Tax under N.H. Rev. Stat. Ann. § 78-B:2, unmarried partners do not qualify for the divorce exemption. A buyout between unmarried co-owners for consideration (including debt relief from paying off the departing partner's half of the mortgage) is subject to the 1.5% New Hampshire Real Estate Transfer Tax ($15 per $1,000) on the consideration paid.

If one partner refuses to sell or cannot agree on a buyout price, either co-owner has an absolute statutory right to file a Petition to Partition Real Estate under N.H. Rev. Stat. Ann. § 547-C:1. The petition can be filed in the Superior Court (such as the Hillsborough County Superior Court North, Manchester or the Rockingham County Superior Court, Brentwood) or in the Circuit Court Probate Division by filing a formal petition for partition under N.H. Rev. Stat. Ann. § 547-C:1 conforming to court pleading rules. In the landmark unmarried co-owner case Brooks v. Allen, 168 N.H. 707 (NH Supreme Court 2016), as well as DeLucca v. DeLucca, 152 N.H. 100 (NH Supreme Court 2005), the New Hampshire Supreme Court affirmed that partition actions are equitable in nature and do not require a rigid 50/50 split. Under N.H. Rev. Stat. Ann. § 547-C:29, the judge evaluates specific statutory factors-including disparities in financial contributions toward acquisition and improvements, duration of occupancy, any contractual agreements between the parties, and waste caused to the property-and can order one partner to buy out the other or appoint a commissioner to sell the house and divide the net proceeds equitably.

How Much Does Legal Protection Cost for Unmarried Buyers in New Hampshire?

Comparing the upfront cost of preventive legal planning against the expense of post-breakup litigation highlights why unmarried buyers in New Hampshire should invest in proper documentation before closing:

  • Drafting a New Hampshire Cohabitation & Property Ownership Agreement: $800 to $2,000 flat fee depending on complexity, down payment structures, and buyout appraisal mechanisms.
  • Custom Deed Preparation & Title Counseling: $250 to $500 for a New Hampshire real estate attorney to draft or review the vesting deed and reciprocal estate planning instruments (such as a Will or Durable Power of Attorney).
  • Deed Recording & LCHIP Fees: $12 for the first page and $4 for each additional page, plus the mandatory $25 LCHIP surcharge under N.H. Rev. Stat. Ann. § 478:17-g.
  • Contested Partition Lawsuit Costs (If No Agreement Exists): $260 court filing fee plus sheriff service fees, court-appointed appraiser or referee fees ($1,500 to $5,000), and litigation attorney fees that routinely range from $10,000 to $35,000+ per party, eroding the very home equity both partners worked to build.

How Long Does It Take to Set Up or Dissolve Co-Ownership?

Drafting and executing a customized Cohabitation and Property Ownership Agreement with a New Hampshire attorney typically takes 5 to 10 business days and can easily be completed during the 30-to-45-day mortgage underwriting window before closing. If a relationship later ends and the partners follow the buyout formula in their written agreement, refinancing the mortgage and recording a Quitclaim Deed generally takes 30 to 45 days.

By contrast, if partners have no written agreement and must litigate a contested N.H. Rev. Stat. Ann. § 547-C:1 Petition to Partition in the Superior Court or Probate Division, the legal process typically takes 9 to 18 months to reach a final accounting, evidentiary hearing, and court-ordered sale. To protect your down payment and structure your title properly, connect with a local New Hampshire real estate lawyer in our directory before you close.

Frequently Asked Questions (FAQ)

Does living together in a house we bought in New Hampshire make us common-law married?

No. Under N.H. Rev. Stat. Ann. § 457:39, New Hampshire only recognizes a limited form of common-law marriage for inheritance purposes after one partner dies, provided the couple cohabited and acknowledged each other as husband and wife for at least three years immediately preceding death. If you break up while both partners are alive, New Hampshire law does not recognize you as married, regardless of how many decades you lived together.

What happens if only one partner is on the mortgage, but both of our names are on the New Hampshire deed?

The partner on the deed who did not sign the promissory note holds legal ownership rights in the house without having personal liability to the bank for the monthly mortgage debt-though both partners must sign the mortgage security instrument so the bank's lien attaches to 100% of the title. Because this creates a severe imbalance of risk, the borrowing partner should always insist on a written Cohabitation Agreement before adding a non-borrowing partner to the deed.

Can one partner unilaterally break a Joint Tenancy with Right of Survivorship in New Hampshire?

Yes. A joint tenant can sever the right of survivorship by conveying their fractional interest to a third party or through an instrument clearly expressing the intent to sever the joint tenancy, converting the ownership into a Tenancy in Common. As confirmed in Estate of Croteau v. Croteau, 143 N.H. 177 (NH Supreme Court 1998), courts examine the clear intent and actions of the parties to determine whether a joint tenancy has been severed.

If my unmarried partner and I split up, do we have to pay the NH Real Estate Transfer Tax when one buys out the other?

Generally, yes. While N.H. Rev. Stat. Ann. § 78-B:2 exempts property transfers between divorcing spouses pursuant to a final divorce decree, no such exemption exists for unmarried partners. When one partner pays cash or refinances a joint mortgage to release the other partner's debt in exchange for a Quitclaim Deed, the New Hampshire Department of Revenue Administration, Concord assesses the 1.5% Real Estate Transfer Tax ($15 per $1,000) on the buyout consideration.

How does a New Hampshire judge divide a house in a partition lawsuit if one partner paid the entire down payment?

Under N.H. Rev. Stat. Ann. § 547-C:29 and the precedent set in Brooks v. Allen, 168 N.H. 707 (NH Supreme Court 2016), the court is not bound to split the proceeds 50/50. The judge has broad equitable discretion to examine bank records, down payment receipts, mortgage payments, and renovation costs to award an unequal division that reimburses disproportionate financial contributions.

Can we both claim the New Hampshire Homestead Exemption as unmarried co-owners?

Yes. Under N.H. Rev. Stat. Ann. § 480:1, an individual owner is entitled to a $400,000 homestead right in the real property they own and actually occupy as their primary residence, subject to a maximum combined cap of $550,000 for multiple co-owners. When two unmarried partners both hold title on the deed and live in the home as their primary residence, they can protect their equity up to the statutory joint cap of $550,000 against unsecured creditor attachments.


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