Served With a Partition Action in New York? Your 5 Options, the 20 Day Deadline, and How to Protect Your Share (2026)

How long do I have to respond to a partition action in New York?

20 days if the summons was handed to you personally in New York, and 30 days if it was served any other way, such as being left with someone at your home and mailed, or served by publication (CPLR 320). Those days are counted from the date service was complete, not from the day you opened the envelope or called a lawyer.

Nothing in the partition statute gives you more time than any other civil defendant. The case is an ordinary action in Supreme Court, filed in the county where the property sits, and it follows the ordinary deadlines. I see people treat the papers like a family argument that can wait until the next holiday. The court does not. If the deadline has already passed, do not conclude it is over. CPLR 3012(d) lets the court extend your time or accept a late answer on a showing of a reasonable excuse, and courts in Nassau and Suffolk grant that relief regularly when a defendant moves quickly and has something real to say. The longer you wait, the harder that motion gets.

One more thing the summons usually comes with: a notice of pendency filed against the property under CPLR 6501. That is a public filing in the county clerk's office that warns any buyer or lender that the title is in litigation. It is not a lien and it does not take anything from you, but it means you cannot quietly refinance or sell your share while the case is pending.

What should I do in the first two weeks after being served?

Pull the deed, gather every record of what you paid toward the property, and get the answer drafted. Those three things decide most of what you will walk away with. The deed tells you whether you hold as tenants in common or joint tenants and what percentage is recorded in your name. The payment records are your credits. The answer is where both go on the record.

Start with the deed because people are often wrong about it. A house that two unmarried people bought together, or that four siblings inherited, is almost always held as tenants in common, and the recorded shares control the starting point. If the deed says fifty-fifty and you put up the entire down payment, the deed still says fifty-fifty until you prove the contribution in court. That proof is bank statements, cancelled checks, the closing statement, mortgage statements, tax bills, insurance declarations and contractor invoices. Build the file now, while the records are still easy to get.

Then look at who the plaintiff is. If you inherited the property and the plaintiff is an investor who bought a sibling's fractional share, read the heirs property section below carefully. RPAPL 993 bars a partition action on heirs property by someone who acquired their share by a means other than inheritance, unless they inherited it from a co-tenant. That one fact can end the case.

I cannot tell you what your own papers support without reading them, so treat the rest of this as the map, not the route. The answer you file should deny what is wrong, admit what is true, state your share, assert your claim for an accounting and credits, and raise any equitable defense you actually have. A one-line "I object" is not an answer.

What are my options when a co-owner files for partition in New York?

You have five realistic paths, and most defendants end up using two or three of them together. In rough order of how often they work:

1. Answer and demand an accounting (days 1 to 30). Partition is an equitable remedy, and RPAPL 945 lets the court adjust the rights of the parties when one has taken more than their share of the rents and profits. Appellate courts in New York consistently credit a co-owner for payments made toward the mortgage, real estate taxes and insurance above their proportionate share before the proceeds are divided. If you have been the one paying, this is where that money comes back.
2. Negotiate a buyout (months 1 to 6). Nothing in RPAPL Article 9 prevents the parties from settling at any point. A buyout at a price both sides can live with, financed by a refinance or a private loan, is the most common way a partition action actually ends, and it avoids referee fees, brokerage commissions and a discounted sale.
3. Use the heirs property buyout right (months 2 to 8). If the property is heirs property under RPAPL 993, the court orders an appraisal by a licensed appraiser, sends every party notice of the value, and any co-tenant who did not request the sale has 45 days from that notice to elect to buy the plaintiff's interest at the appraised value times the plaintiff's percentage. The court then sets a payment date not sooner than 60 days after notice. This is a statutory right, not a favor from the plaintiff. I cover the heirs property process in detail in my post on inherited property with siblings.
4. Raise an equitable defense (with the answer). The Appellate Division, Second Department has said repeatedly, most recently in Paquet v Murphy in October 2025, that the right to partition is not absolute and the remedy is always subject to the equities between the parties. Real defenses include a written agreement not to partition, a divorce judgment that already governs the property, or conduct by the plaintiff that makes a forced sale inequitable. Hurt feelings and a long family history are not defenses.
5. Consent to a cooperative open market sale (months 3 to 12). If the property is going to be sold no matter what, agreeing to list it with a broker at a market price beats a referee's public auction under RPAPL 915 almost every time. Auction buyers price in risk and pay less. Co-owners who fight to the end often net less than co-owners who agree to sell early on their own terms.

The option that is not on the list is doing nothing. That is covered next.

How much does it cost to defend a partition action in New York?

The court fees are small and the professional fees are not. The index number costs $210 under CPLR 8018 and the request for judicial intervention costs $95 under CPLR 8020, and those are paid by whoever files them. Everything else scales with how hard the case is fought. In my practice on Long Island, a partition that settles with a buyout in the first few months costs each side a fraction of a case that goes through discovery, a trial on credits, a referee's sale and a contested accounting. For context on hourly and flat fee ranges, see what a real estate attorney costs in New York.

Here is the math that should drive your decision. Take a $700,000 Nassau County house owned fifty-fifty. A cooperative sale pays a broker's commission, the mortgage payoff, transfer taxes and closing costs, and the rest is split subject to credits. A litigated partition and sale pays all of that plus two sets of attorney fees through trial, an appraiser, a court appointed referee whose fee is fixed by the court and paid from the proceeds under RPAPL 981, and often a second appraisal when the parties disagree. It is not unusual for the litigated path to consume forty or fifty thousand dollars that would otherwise have been split between the owners. The plaintiff's costs are apportioned among the parties and paid out of the sale under RPAPL 981, which means a defendant who fights a losing fight pays for part of the plaintiff's lawyer too.

The one place a defendant should spend money without hesitation is proving credits. Every documented dollar of mortgage principal, taxes and insurance you paid above your share is a dollar that comes to you before the split. Reconstructing ten years of payments is tedious. It is also usually the highest return work in the entire case.

What happens if I ignore a partition summons in New York?

The case moves without you, your credits go unclaimed, and the court can enter a judgment directing that the property be sold at public auction (RPAPL 915). I want to be direct about this because the instinct to ignore a lawsuit from a sibling or an ex is strong and the result is predictable.

A defendant who does not answer is in default. The plaintiff moves for a default judgment, proves their interest and that the property cannot be physically divided without great prejudice, and obtains an interlocutory judgment that fixes each party's share as the deed states it and orders a sale. Nobody argues your side of the accounting, because you were not there. Nobody tells the court you paid the taxes for six years. The referee sells the property, pays the liens, taxes and expenses of the sale under RPAPL 981, and deposits your share of what is left with the court or distributes it according to the judgment. You will receive something, but it will be the deed percentage of a discounted auction price, minus costs, with no credits.

A default can sometimes be vacated, and the courts prefer deciding cases on the merits, but that requires a motion, a reasonable excuse for the default, and a meritorious defense, and it costs money that could have gone toward the answer in the first place. If the property is heirs property there is an extra safety valve: RPAPL 993 provides that a defendant who shows up at the first mandatory settlement conference without having answered is presumed to have a reasonable excuse and may file an answer within 30 days of that appearance. Do not rely on it. Answer on time.

My co-owner wants me out and wants their money. Do I have to leave?

No, not because of the filing. A partition action does not evict anyone, and a co-owner who lives in the property has the same right to possess the whole of it that the other owner has, until a judgment and sale actually transfers title. Until then you stay, and you are not automatically charged rent for staying. The Court of Appeals established in Jemzura v Jemzura, and the Second Department has repeated many times since, that one tenant in common is generally not liable to another for use and occupancy absent an agreement to pay or an ouster. The same rules apply to unmarried couples who bought a house together and split up.

An ouster means you actually excluded the other owner, by changing the locks, refusing them entry, or denying their ownership. If you have done that, expect a claim for the rental value of their share from the date of the ouster, and expect it to be set off against your credits in the accounting. If you have simply been the one living there while the other owner lives elsewhere, that alone is not an ouster and does not create a rent obligation.

The other side of the coin is that living there does not excuse you from the carrying costs. Absent an ouster, co-owners bear the costs of maintaining the property in proportion to their shares, so the owner who moved out can be charged with their share of taxes and mortgage payments you made. In practice the two claims get netted at the end: your credits for what you paid against any use and occupancy you owe, then the balance is split by the deed shares. Knowing those numbers early is what makes a buyout negotiation realistic instead of emotional.

What slows down a New York partition action, and what speeds it up?

Disputed credits, an heirs property determination, and a missing or unlocatable co-owner slow the case down more than anything else. A clean deed with two owners who agree on the sale price can be over in months. A property with five heirs, two of whom cannot be found, a decade of undocumented payments and a dispute about whether a fence in the yard was an improvement will take the full one to two years and sometimes longer.

The heirs property statute adds its own schedule. Once the court finds the property is heirs property under RPAPL 993, it orders the appraisal, sends notice of the value, allows 30 days for objections and a hearing not sooner than 30 days after notice, then runs the 45 day buyout election and a payment date no sooner than 60 days out. If no co-tenant buys, the court orders an open market sale through a broker rather than an auction, and the broker has to market the property at no less than the determined value for a reasonable time before the court will consider anything lower. Each of those steps protects the heirs. Each one also takes weeks.

What speeds a case up is agreement on the things that do not actually need a judge. If the parties stipulate to the shares, agree on an appraiser, and exchange payment records early, the court is left to decide only what is genuinely disputed. On Long Island, a partition where both sides have counsel and the real argument is a number, not a principle, settles far more often than it is tried.

What mistakes cost partition defendants the most in New York?

Missing the answer deadline, failing to document payments, and confusing possession with ownership are the three that do the most damage. A fourth, which costs more quietly, is spending the legal budget on a defense that cannot win instead of on the accounting that can.

Here is the hard truth as I see it after 27 years of these cases. If a co-owner with a valid interest wants out and there is no agreement not to partition, the property is going to be divided or sold. Fighting that outcome on principle burns the equity you are fighting over. The defendant who does well is the one who accepts the sale in the first month, documents every dollar they contributed, insists on a market sale rather than an auction, and uses the heirs property buyout if it is available. The defendant who does badly is the one who defaults, or who spends a year arguing that a sibling has no right to sell a house their parents wanted to stay in the family. Partition law does not ask what the parents wanted. It asks what the deed says and who paid for what.

If you have been served, the first thirty days are the most valuable days of the case. Use them.