Co-owners of New York real property who cannot agree on what to do with the property have a statutory remedy. RPAPL Article 9 gives any tenant in common or joint tenant the right to petition the court to partition the property, either by physical division or, more commonly, by forced sale with proceeds divided according to the owners' respective shares. This article covers who has standing, the two forms partition takes, the equitable adjustments that move the final number, and the pleading posture that produces a clean sale.
What RPAPL Article 9 Does
RPAPL § 901 authorizes a person holding and in possession of real property as a joint tenant or tenant in common to maintain an action for partition. The remedy is absolute. A co-owner has an unconditional right to partition unless the right has been waived by agreement or is defeated by a specific equitable defense. The court's discretion goes to the form of partition and the equitable adjustments, not to whether partition will issue.
Partition proceeds in two steps under the statute. First, the court determines the parties' respective interests in the property and whether partition is proper. Second, under RPAPL § 915, the court decides whether partition in kind is practicable or whether a sale is required. In most urban and suburban New York practice, partition in kind is impracticable and the court orders a sale.
Who Can Petition
Standing under RPAPL § 901 is limited to persons who hold title and are in possession, actual or constructive. The categories most often seen in Nassau, Queens, Kings, Bronx, and Westchester practice are the following.
Tenants in common. The most common partition petitioner is one of several tenants in common who want to liquidate their share and are unable to reach agreement with co-tenants. Unmarried couples who took title together, siblings who inherited a parcel, and co-investors in a residential rental all fit here.
Joint tenants. Joint tenants with right of survivorship may petition for partition; the partition itself severs the joint tenancy and converts the interests to tenancies in common for the purpose of division.
Heirs and distributees in an estate. Where real property passes to multiple heirs by will or by intestacy, the heirs become tenants in common upon the issuance of letters, and any one of them has standing to compel partition. Partition of inherited property is one of the most frequent patterns in Kings and Queens County Supreme Court real property practice.
Judgment creditors and lienholders. A creditor who has docketed a judgment lien against a co-owner's interest, or a mortgagee under certain circumstances, may bring partition. The practice is narrower than beneficiary partition but is available where the lien attaches to the specific partial interest.
Spouses do not have standing to petition for partition of marital property while a matrimonial action is pending; equitable distribution under DRL § 236(B) is the exclusive remedy for marital-asset division between spouses. Partition is available between non-spouse co-owners and between former spouses after the matrimonial judgment where the property remains jointly held.
Partition in Kind vs. Partition by Sale
RPAPL § 915 directs the court to order partition in kind, meaning the physical division of the property, where practicable. The physical division must be fair to each party and must not materially injure the property's value. In practice, residential properties on standard urban or suburban lots cannot be physically divided without destroying value, so the court orders a sale.
Where partition in kind is theoretically available (a large undeveloped parcel, a multi-acre rural tract, a property with naturally divisible subparts), the court appoints commissioners under RPAPL § 943 to carry out the physical division and report back. The commissioners' report is subject to the court's confirmation and may be modified or rejected if the proposed division does not meet the fairness and value-preservation requirements.
Where partition by sale is ordered, the court appoints a referee under RPAPL § 918 to conduct the sale. The referee markets the property, conducts the public or private sale under the terms the court approves, collects the proceeds, and distributes them to the co-owners according to the court's determination of their respective shares, after accounting for the equitable adjustments the court orders.
Equitable Adjustments: Where the Real Fight Happens
The headline question in a partition case is whether to sell. The money question is how the proceeds are divided after the court applies equitable adjustments. Several categories of adjustment recur and should be developed in the pleading and the record.
Contribution for purchase price. Where one co-owner contributed more than their pro-rata share toward the original purchase, the court credits the contributing co-owner at distribution. The claim is proved through closing documents, bank records showing the source of the down payment, and testimony. A co-owner on title who did not contribute to the purchase holds a legal interest subject to equitable reduction.
Contribution for mortgage, taxes, and insurance. A co-owner who has carried disproportionate shares of the mortgage, property tax, and insurance payments after acquisition is entitled to contribution from the non-paying co-owner. The claim runs year by year with interest; the record is built from the payment history. Contribution claims under the carrying-cost category are often the largest single adjustment in a partition case.
Contribution for capital improvements. Permanent improvements that enhance the property's value, as distinguished from ordinary repairs and maintenance, generate a contribution claim for the improving co-owner. The measure is the increase in value attributable to the improvement, not the dollar cost, which requires expert appraisal evidence where the amounts are material.
Rental value and occupancy. A co-owner who has had exclusive possession of the property has had the use and benefit of the whole where the others have been excluded. The non-occupying co-owners may claim an offset for the fair rental value of the exclusive occupancy. The claim does not arise automatically; it requires a showing that the non-occupying co-owners sought access and were refused, or that the occupying co-owner otherwise excluded the others.
Waste and damage. A co-owner who committed waste on the property, or who caused damage through neglect, is chargeable with the diminution in value. The claim requires proof of specific acts or omissions and expert evidence on the resulting value impact.
The partition judgment nets these adjustments into each co-owner's final distribution. A nominal 50/50 co-ownership can produce a 70/30 or 80/20 distribution after the adjustments where one co-owner has carried the property while the other has been absent. The partition pleading should allege the adjustment categories with specificity; conclusory contribution claims produce reduced recovery at trial.
The Pleading and the Lis Pendens
A partition action is commenced by summons and verified complaint. The complaint identifies the property, the plaintiff's interest and basis for standing, the names and interests of each co-owner, any encumbrances of record, and the specific partition relief sought (in kind or by sale) with the equitable adjustments claimed. The complaint must be verified by the plaintiff under RPAPL § 907.
A notice of pendency under CPLR § 6501 is filed with the complaint. The lis pendens puts the world on notice that title to the property is in litigation and that any transfer or encumbrance recorded after the lis pendens takes subject to the eventual judgment. The lis pendens is critical to protect the plaintiff's eventual sale right; without it, a co-owner can convey or encumber their partial interest and complicate the proceeds distribution.
The action is filed in the Supreme Court of the county where the property is located. For properties straddling county lines, counsel confirms venue against the specific recording jurisdiction before filing.
Defenses and Delay Tactics
Defenses to partition are narrow. The strongest category is a specific written agreement among the co-owners waiving partition for a defined period or until a defined event (a buyout opportunity, a child reaching a specified age, a market condition). Written waiver agreements are enforced where the terms are clear and the waiver period has not expired. Oral waiver claims are rejected.
Equitable defenses such as laches, unclean hands, or estoppel occasionally defeat a partition petition but are difficult to sustain against the statutory right. A co-owner's own delay in seeking partition does not usually bar the remedy; the delay affects the equitable adjustments more than the right to partition itself.
The most common response is not to defend the partition but to contest the equitable adjustments and the structure of the sale. A defending co-owner can slow the proceeding by requiring full discovery on the contribution claims, by proposing in-kind partition where it is marginally plausible, and by litigating the appointment and compensation of the referee. These moves rarely defeat partition but can extend the timeline from twelve months to twenty-four or thirty-six months on a contested record.
A Representative Long Island Co-Ownership Matter
In a recent Suffolk County residential purchase I handled on the buy side, two unmarried co-buyers took title to a single-family home together. The vesting language in the deed had direct implications for a future partition action if the relationship ended. We structured the vesting as tenancy in common with specified percentage shares reflecting the parties' actual contribution to the down payment, and we documented the carrying-cost allocation in a side agreement. The structural work at closing was designed to simplify a future partition if one became necessary, by eliminating the contribution-claim fights that otherwise consume the first six months of a partition case. The transactional investment at acquisition is a fraction of the litigation cost of resolving the same questions on a contested record years later.
Timing and Cost
An uncontested partition action in Nassau, Queens, or Kings County Supreme Court typically runs twelve to eighteen months from filing to final distribution. A contested partition with substantial equitable-adjustment claims runs twenty-four to thirty-six months. The referee's commissions on sale are set by RPAPL § 918 and are paid out of sale proceeds; counsel fees for the partition proceeding are typically borne by each party individually and are not routinely shifted.
Partition is expensive relative to a negotiated buyout. Where the co-owners can reach a buyout agreement, the transactional cost is a fraction of the litigation cost, and the proceeds reach the parties years sooner. The partition action is the correct remedy where the co-owners cannot agree, but counsel should always price the buyout alternative first.
FAQ
Can one co-owner force the sale of a property the others want to keep?
Yes. The right to partition under RPAPL § 901 is absolute, subject only to a valid written waiver agreement or an equitable defense. A co-owner who wants out can compel the court to order a sale even where the other co-owners oppose it. The remaining co-owners can purchase the exiting co-owner's interest at a negotiated value or at the court-supervised sale.
How are the sale proceeds divided?
The court divides proceeds according to the co-owners' legal interests in the property, modified by the equitable adjustments the court applies. A 50/50 record ownership can produce a materially different distribution after the court credits one co-owner for disproportionate contributions to purchase, mortgage, taxes, insurance, and capital improvements, and offsets for any exclusive occupancy or waste.
What if the property has a mortgage?
The mortgage is paid from the sale proceeds before distribution to the co-owners. Any arrears, late fees, or acceleration charges are also paid off the top. The co-owner who has been servicing the mortgage during the ownership period may claim contribution against the non-paying co-owner for the portion attributable to the non-paying co-owner's share.
Can I partition property I inherited with my siblings?
Yes. Co-owners who take title through inheritance are tenants in common and have the right to partition under RPAPL § 901 on the same terms as any other co-owner. Partition of inherited property is a frequent pattern in Kings, Queens, and Bronx County Supreme Court practice.
Working With Counsel on a Partition Action
Partition is a technical area of New York real property practice where the pleading posture at commencement determines the equitable-adjustment record and the ultimate distribution. If you are a co-owner of New York real property who cannot reach agreement with the other owners, or you are defending a partition action, contact Michel Law for a real property litigation consultation at (516) 440-3440 or schedule online. We represent partition plaintiffs and defendants in Nassau, Suffolk, Queens, Kings, Bronx, and Westchester.