Buying a home with someone you are not married to can make sense for many reasons. Some buyers want to pool resources to qualify for a larger mortgage. Others want to share expenses or invest. Sometimes the buyers are friends, relatives, roommates, or dating partners. The law does not assume a relationship of any kind. It only sees names on a deed, names on a mortgage, and facts that can be proved. Because there is no marriage statute to fill the gaps, planning is essential before you sign.
This guide explains how unmarried co owners can structure title, allocate costs, plan for disputes, and protect their interests. It also outlines common scenarios we see in practice and the steps that can reduce risk. It is general information, not legal advice. Your situation will have facts that matter. A short consultation can prevent long and costly fights later.
Title choices in Massachusetts
How you hold title controls who owns what, who inherits, and how a sale or buyout works. In Massachusetts the options are the following.
Tenancy in common
Each owner holds a separate share that can be equal or unequal. You might agree that one person owns 70 percent and the other 30 percent because one paid more for the down payment. Each share can be transferred or left by will. There is no automatic inheritance between the owners. If one owner dies, that owner’s share goes to their estate or to beneficiaries named in the will.
Joint tenancy with right of survivorship
Each owner holds an equal share. If one owner dies, the other automatically owns the entire property. This avoids probate for the deceased owner’s share. Joint tenancy is created by clear survivorship language in the deed. Either joint tenant can unilaterally sever the survivorship by conveying their interest, which converts the title to a tenancy in common.
Tenancy by the entirety is not available to unmarried buyers
This form of ownership is reserved for married spouses. If a deed to unmarried people uses that label, the law treats it as a different form of co ownership. For unmarried buyers, the real choice is between tenancy in common and joint tenancy with survivorship.
How to choose
- Choose tenancy in common when you want ownership to mirror unequal contributions, or when you want your share to pass to your own heirs rather than to the co owner.
- Choose joint tenancy with survivorship when you want the survivor to own the property automatically, and when equal shares match your intent.
- If you are unsure, tenancy in common with a written co ownership agreement is often the most flexible route.
Mortgage and financing basics
The note is the promise to repay the loan. The mortgage secures the asset by the lender. The deed is the document that shows who owns the property. Those do not have to be the same people, but the mismatch creates risk.
- If both buyers sign the note, both are liable for payment even if one moves out later.
- If only one buyer signs the note but both are on the deed, the lender can still foreclose if the note is not paid. The non borrower owner could lose the property without ever having owed the lender directly.
- Lenders may require all deed owners to sign the mortgage as security even if they are not on the note.
Before closing, decide who will be on the mortgage and note, who will be on the deed, and how payments will be shared. Get pre approval letters early, and confirm whether your lender allows unequal ownership shares. Keep copies of wire receipts, bank statements, and closing disclosures so you can prove who paid what.
The essential co ownership agreement
For unmarried buyers, the deed is not enough. A written co ownership agreement (or cohabitation agreement) is the single best tool to prevent disputes. Think of it as a roadmap for the life of the property.
Key terms to include:
- Ownership shares and how you calculated them
- Who pays the down payment, closing costs, and all recurring expenses such as mortgage, taxes, insurance, utilities, and regular maintenance
- What counts as a capital improvement and how those costs affect future equity split
- Occupancy rules, including whether one person may live there alone or sublet rooms
- Decision making rules for repairs, renovations, and contractors
- Buyout rights and the valuation method for a buyout
- The sale process, if you cannot agree on a buyout, including the listing agent, price strategy, and timeline
- Dispute resolution steps such as mediation before any court action
- What happens if someone stops paying, disappears, or violates the agreement
- What happens if one owner dies or becomes incapacitated
A short but comprehensive agreement that captures these points can save you both money and stress. If you already own without an agreement, you can still sign one now.
Protecting your investment after closing
File a declaration of homestead if the property is your principal residence
Massachusetts law allows an owner who occupies the home as a principal residence to record a declaration of homestead. This can protect equity up to a statutory amount from certain creditors. Each qualifying owner should record a declaration. Ask your attorney whether you need separate declarations or a combined filing.
Keep detailed records
Save a shared spreadsheet and a folder of receipts. Track mortgage payments, taxes, insurance, utilities, and repairs. Record who paid and when. Include photos of repairs and improvements, permits, and contractor invoices. Good records make buyouts and settlements straightforward.
Title insurance and homeowners insurance
Review your title policy and make sure both owners are covered. For homeowners insurance, list all owners as insureds where appropriate. Update homeowners coverage when renovations or additions increase value.
Maintenance protocols
Agree on a schedule for routine maintenance. Decide who schedules seasonal tasks, who chooses vendors, and how you will approve larger expenses. Put it in writing so there is no confusion later.
Exiting the arrangement or resolving a deadlock
Life changes. People move, lose jobs, marry, have children, or decide to invest elsewhere. Plan ahead for these exits.
Buyout
One owner can buy the other’s share at a price determined by an appraisal or by a formula in your agreement. The buyer should refinance the mortgage to remove the seller’s liability, or the buyout payment can be escrowed until the refinance closes.
Sale
If neither wants to or can buy out the other, a sale is the cleanest exit. Your agreement should identify the agent, the way you will set the listing price, how you will handle price reductions, and how you will split net proceeds after closing costs and reimbursements.
Partition actions
If you cannot agree on a buyout or sale, Massachusetts law allows a co-owner to ask the court to divide or sell the property and distribute proceeds according to ownership shares and proper adjustments. Partition is the last resort because it is public, slow, and expensive, but it exists to resolve true impasses.
Interim arrangements
During a breakup or deadlock, consider temporary rules for occupancy and payments. For example, if one owner stays in the home, rent credits or use and occupancy charges may apply. Your agreement can spell this out in advance.
Estate planning for co owners
If you hold title as tenants in common, your share passes by will or by the laws of intestacy if you die without a will. A will, health care proxy, and power of attorney are essential, especially if you want your co owner to inherit or to manage affairs for the property. If you hold title as joint tenants with survivorship, your share passes automatically to the other owner at death. That survivorship will control even if your will says otherwise, so choose carefully and keep your deed and your estate plan aligned.
You can also consider a trust that holds the property and defines rights between the owners. This can allow smoother transitions if one owner dies or becomes incapacitated.
Tax considerations to discuss with your advisor
- Mortgage interest and real estate taxes are often reported on one Form 1098 even when two owners are paying. The IRS generally allows deduction by the person who actually paid, up to legal limits. Keep proof of payment.
- If the property is your principal residence and you later sell, you may qualify for the capital gains exclusion if you meet the ownership and use tests. Each owner is evaluated individually.
- If you rent out part of the home, depreciation and allocation rules apply. A tax professional can help set this up correctly at the start.
Common real life scenarios
- Two friends buy a two bedroom condo. One pays the entire down payment, both pay the mortgage half and half. They choose tenancy in common with a 60 to 40 ownership split and sign an agreement that gives the down payment contributor first option to buy if the other wants out. After three years one owner moves for work and exercises the sale option. The appraisal sets price, the refinance closes, and the buyout is smooth because the terms were clear from day one.
- A couple in a dating relationship buys a single family home with joint tenancy and survivorship. The relationship ends. Because there is survivorship and there was no agreement, neither can sell without the other, and neither wants to move. After months of gridlock, one files a partition case. The court orders a sale. Both lose time and money they could have saved with a written plan.
- Siblings inherit funds and decide to invest together. They buy a three family property as tenants in common with equal shares and a detailed agreement. One sibling later wants to cash out. The agreement sets an appraisal, provides a timeline, and allows either a refinance buyout or a sale. They choose to sell and split the proceeds. No lawsuit, no surprises.
- Two roommates buy a condo. Only one qualifies for the mortgage note, but both go on the deed. They sign an agreement that requires monthly reimbursements and gives the paying owner the right to force a refinance if the other’s finances improve. After one year the non borrower adds income and credit, they refinance into both names, and the risk to the original borrower is reduced.
- An owner dies unexpectedly. Title was tenancy in common. Without a will, the share passes by intestacy to relatives who never planned to co- own with the survivor. The survivor has to negotiate a buyout with multiple heirs. A simple will and a clear deed choice could have avoided this outcome.
Red flags that increase risk
- No written agreement, only a handshake
- a dating relationship with only one name on the deed, despite the person not on the deed making the entire down payment
- Unequal contributions with equal title and no reimbursement plan
- Only one person on the mortgage note while both are on the deed
- Survivorship language included without understanding what it means
- No plan for temporary occupancy if one owner moves out
- No record of who paid for improvements and repairs
- Failure to record a declaration of homestead where eligible
A simple checklist before you buy
- Choose title: tenancy in common or joint tenancy with survivorship
- Decide ownership shares and write them into the deed if unequal
- Confirm who will sign the mortgage note and who will be on the deed
- Draft and sign a co ownership agreement with clear buyout and sale rules
- Set up a shared system to track payments and receipts
- Review homeowners, title, and if needed umbrella insurance
- Record a declaration of homestead if this is your principal residence
- Align your deed with your estate plan and beneficiary designations
- Schedule a legal and tax review before closing
Why planning with counsel matters
When you are not married, the law does not fill gaps for you. Title language, mortgage obligations, and a short agreement do the heavy lifting. Thoughtful planning lets you focus on living and on building equity rather than on conflict. An hour with counsel now can save you months of stress later, and it can preserve your relationship with the other owner, whatever that relationship is.
Talk with Reeves Lavallee PC
Reeves Lavallee PC helps unmarried buyers and co owners across Worcester County plan, purchase, and if needed unwind co ownership in a clear and fair way. We work with lenders, realtors, and accountants, and we draft practical agreements that hold up when life changes. Whether you are about to write an offer, are already under agreement, or already own and want to put protections in place, we can help.
Call 508-425-6945 to schedule a confidential consultation. Bring your lender pre approval, any draft deed or purchase and sale, and your questions. We will give you concrete next steps tailored to your goals.
This post is general information for Massachusetts readers. It is not legal advice. Laws change, and facts matter. Speak with an attorney about your specific situation.