Three checks decide whether you sell first or buy first

The order falls out of three answers you can get before you list the apartment or make an offer, one each from your building, your lender and the market where you are buying. Ed’s starting point is that the move is one project with two halves: “You want to look at the whole thing as two different phases, but they’re happening at the same time.”

Check 1: How long will your Manhattan sale take?

The Manhattan sale is usually the slower half, so it sets the clock. Ed’s first questions: is the apartment in show-ready shape, what is the market for your building and your type of apartment, and how long will the whole process take. A co-op adds a board review that a condo mostly does not. In Ed’s experience, a Manhattan co-op takes about three months from signed contract to closing at the quickest, and four to six months once preparation and marketing are included.

Check 2: Can you carry or finance both homes?

If you can buy before the apartment closes, you gain flexibility; if you cannot, the sale comes first. A cash purchase settles it. Most buyers finance, so the lender’s answer decides: do you qualify for the new mortgage while still paying the apartment’s loan and maintenance or common charges? Ed’s ideal is a buyer who can hold the apartment as long as needed, so neither side runs under pressure.

Check 3: How will a contingent offer be received where you are buying?

An offer that depends on your apartment selling is usually weaker than one that does not, and how much weaker depends on the house. Ask your agent how long it has been listed, how much interest it is drawing, whether the seller has already bought elsewhere and what closing date the seller wants. In Ed’s experience, much of the Westchester house market lists in early spring, and many of those sellers are not looking to close until June or July, a calendar that suits a buyer selling in Manhattan the same spring.

Put together, the answers usually choose the order. If you cannot carry both homes, sell first. If you can, and the house will not wait, buy first. If your building’s process is predictable and the seller’s date is flexible, run them side by side.

Sell first, buy first or both at once: how the three paths compare

Each path trades one risk for another.

Selling first is the common choice; in Ed’s experience it is what most people end up doing. The apartment goes into contract, so you know the price and closing date before you commit in Westchester, and you keep looking at houses while the board does its work. If the dates still do not meet, the worst case is closing on the apartment and moving into short-term housing until the Westchester closing.

Buying first makes you a stronger buyer and leaves room for work on the house: close on it, carry the apartment for a couple of months while the work is done, then move. The price is carrying both homes and, if the apartment sits after you move, the pied-à-terre question covered below.

Ed Hardesty walks through the order of the two transactions, from preparing the apartment to a gap between closings. The Hardesty Team at Compass, October 19, 2026, 6 minutes 48 seconds.

Chapters in the video:

• 0:00 Moving from Manhattan to Westchester
• 0:43 Getting your apartment ready to sell
• 1:13 How long a Manhattan co-op sale takes
• 1:32 Financing and pre-approval
• 2:16 Making an offer that is not contingent on your sale
• 2:32 Starting underwriting early
• 2:53 Choosing where in Westchester
• 3:19 Checking Westchester property taxes
• 4:06 Timing the spring market
• 4:47 If the house needs work
• 5:15 Selling your apartment first
• 6:00 If there is a gap between closings
• 6:15 Planning your move

The Manhattan side runs on the board’s calendar

A Manhattan co-op sale has six stages, and the seller has the most say over the first two. After the contract, the pace belongs to the buyer’s paperwork, the attorneys and the board.

The board stage now has a legal clock. New York City Local Law 58 of 2026, enacted January 29, 2026, when the City Council overrode a mayoral veto, covers co-op purchase applications made on or after July 28, 2026, in co-ops of 10 or more units other than housing development fund companies and co-ops whose sales need a government housing agency’s approval. The board must give you or your buyer its application and transfer requirements promptly on request, acknowledge an application within 15 days and say whether it is complete, and decide within 45 days of acknowledging a complete one. It may extend once by up to 14 days, and a board that has adopted a summer recess notice can pause the clock during its declared recess within July and August. The law sets a deadline, not an outcome: a board may still lawfully deny consent.

What the law does not change is the work before the clock starts. As Ed puts it, what people most need to understand about a New York co-op is “how long that process takes, what the expectations of the boards are, because it is very opaque and harder to know for sure what they’re looking for.” Our guide to how long it takes to sell a Manhattan co-op covers each stage and the board package.

Condominium sales usually move faster. In Ed’s words, “a condominium is real property, so the board isn’t as much of an issue.” If the apartment needs work before it lists, Compass Concierge is a Compass program that fronts the cost of services such as staging and painting until closing; the loans come from Notable Finance, LLC, not Compass, subject to credit approval and terms that may vary by market, and fees or interest may apply depending on the state. In a co-op, check the alteration rules first.

The Westchester side runs on a contract your attorney negotiates

An accepted offer on a Westchester house is not yet a deal. Under General Obligations Law section 5-703, a contract for the sale of real property is void unless it is in writing and signed by the party to be bound. In New York practice an accepted offer is made subject to the attorneys’ approval, so nothing is final until both sides sign the contract the attorneys negotiate. The steps:

1. Offer and acceptance through the agents, on price, closing date and contingencies. The State Bar advises seeing your attorney before you sign anything, and the Department of State tells brokers to make any contract form they fill in subject to both attorneys’ approval.
2. Disclosure. Under Real Property Law section 462, the seller of a one-to-four family house generally must deliver the Property Condition Disclosure Statement before you sign a binding contract. Condominium units and cooperative apartments are outside it (Real Property Law section 461), so as a Manhattan apartment seller you deliver none.
3. Contract. In downstate New York the seller’s attorney typically drafts it, according to the New York State Bar Association, and your attorney negotiates it. The Department of State advises buyers to have their own attorney review all contracts and loan documents.
4. Deposit. After signing, the down payment typically goes to the seller’s attorney to hold in escrow. The amount is set in the contract.
5. Mortgage commitment. A contract usually makes the purchase contingent on the buyer obtaining a mortgage.
6. Title and closing. Title issues are typically resolved before closing, and, as Ed notes, the closing date is negotiable with the seller.

Two more notes from Ed. Verify the current tax bill on any house rather than rely on figures online, and give the verified figure to your lender. And in his experience, most buyers coming out of Manhattan co-ops buy single-family homes, condominiums or townhouses rather than co-ops; where a Westchester co-op is involved, its board tends to state its requirements more clearly.

A home sale contingency protects you and costs you leverage

A home sale contingency makes your Westchester purchase depend on your Manhattan apartment selling by an agreed date. It exists only if the contract says so, it is separate from the mortgage contingency, and the seller can refuse it.

A Westchester seller reads it as risk: the seller’s move now depends on your buyer, your attorneys and a co-op board the seller has never met. So Ed’s advice runs the other way: if you can carry both homes, offer without the contingency. In his words, “the pre-approval letter has to state very clearly that the purchase of this house is in no way contingent on the sale of your apartment.” If you do need one, keep it short, tie it to your realistic Manhattan timeline and let your attorney draft what happens if the apartment has not closed.

Financing questions to bring to your lender

Financing decides whether buying first is possible, and only a lender can answer for your numbers. These are questions to ask, not a recommendation of any product.

• Can the pre-approval letter state that the purchase is not contingent on selling my apartment?
• Can I start underwriting now? Ed’s view is that submitting your documents and letting the bank pull credit early is “a lot stronger” than a basic pre-approval, because the bank has actually reviewed your material.
• Do I qualify for the new mortgage while still paying the apartment’s loan and maintenance or common charges, and for how long?
• Do you offer short-term bridge financing to buy before a sale closes? What does it cost, how long does it run, and what secures it?
• Will you lend against co-op shares, and does my building’s financing policy allow a second loan? The managing agent knows the building’s rules.
• Will you open a home equity line of credit on an apartment that is already listed? The Consumer Financial Protection Bureau describes a HELOC as an open-end line of credit against your home equity, usually at a variable rate, and warns that you could lose your home if you cannot repay it.
• What will the mortgage cost at closing, including any points? Ed makes sure each client’s lender walks them through it.

Lining up two closings

Both closing dates are negotiated, so most of the timing risk can be managed in the contracts.

• Set the dates together. Ask for a Westchester closing that falls after your apartment’s realistic closing window, with room for a board delay.
• Watch the summer. A board that has adopted a summer recess notice can pause its deadlines during the declared recess within July and August, which can overlap the June or July closings many spring Westchester sellers want, in Ed’s experience.
• Negotiate a short stay. The State Bar notes that sellers sometimes stay after closing while arranging new accommodations. In a co-op the buyer becomes the shareholder at closing, so ask the managing agent whether the building permits a seller to remain. In Westchester, a rent-back to the house’s seller would be written into the contract by the attorneys; ask your lender how it fits the loan.
• Book the building’s move. The managing agent’s move-out rules can set your moving date.
• Verify every wire. The Department of State warns that scammers send last-minute changes to wiring instructions; verify any change by contacting a trusted representative directly.

What each side costs

On the Manhattan sale, the main seller costs are transfer taxes, any flip tax, attorney and broker fees and building charges. State law puts the real estate transfer tax on the grantor, the seller, unless the contract provides otherwise (Tax Law section 1404). The New York City Real Property Transfer Tax, which applies to transfers of co-op shares, is normally the seller’s liability, the Department of Finance says; the buyer becomes liable only if the seller is exempt or does not pay. A co-op may add a flip tax under its own documents. Add the broker’s commission (negotiable), building fees and any loan payoff. Our guide to Manhattan seller closing costs and flip taxes has the rates and a worked example.

On the Westchester purchase, the state mansion tax under Tax Law section 1402-a falls on the buyer of residential property at $1 million or more; your attorney and lender itemize the other purchase costs.

If you keep the apartment, check the pied-à-terre surcharge first

Keeping the apartment after you move can now carry a city tax. The Department of Finance’s non-primary residence surcharge, the pied-à-terre tax, may apply for tax years 2026-27 and 2027-28 to co-op and condominium units valued by DOF at $1 million or more (DOF’s market value, not your asking price) that are not a primary residence on January 5 before the tax year. Under Tax Law section 1351, a unit is outside it if on that date it is the primary residence of an owner, an immediate family member, or a tenant on a bona fide, arm’s-length lease of at least one year. DOF’s 2026-27 exemption deadline was October 13, 2026; the rollout and the tax itself were being challenged in court on October 21, 2026.

Selling ends your exposure for later years, but an apartment that is no one’s primary residence on January 5 can be exposed for the whole tax year that begins the next July 1. A rental keeps it outside the surcharge only on that kind of lease, and a co-op sublet generally needs the board’s consent. If you will carry the apartment past a January 5, ask your attorney or accountant how the test applies to your dates. Our NYC pied-à-terre tax guide covers the rates and what is still unsettled.

Why one team on both transactions controls the timing

Two transactions run by two teams have two calendars and a gap nobody owns. One team on both sides sees the board’s progress and the Westchester dates at once.

The New York Department of State lists Ed Hardesty, licensed as Carl Ed Hardesty, under two current associate broker licenses: Compass at 110 Fifth Avenue in Manhattan, and Compass Greater NY LLC at 2 Ashford Avenue in Dobbs Ferry. Each transaction keeps its own attorneys and lender; one team watches both clocks. More on Ed Hardesty’s work in both markets.

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