By Lisa Sevajian, Realtor · Published August 20, 2026 · Last updated October 14, 2026 · 12 min read

How Do You Buy and Sell a Home at the Same Time in Massachusetts or New Hampshire?

The house wasn't too small. The plan was too vague.

Two kinds of house hunters call me. Those with a plan, and those without. If you're stressed about timing two moves, you want to be the first kind.

One day, out of the blue, the right house will come along. You'll call me and say go get it. If you have a plan, we move. If you don't, we scramble. If that worry keeps you up at night, you aren't alone. It's the question I hear most from people who already own a home.

Buying and selling at the same time is more common than people think. It just takes planning, so you're protected on both sides.

Same market, same season. The difference was a plan built before the first move.

What does it look like when the plan comes first?

Here are two sellers I worked with, and how a plan carried them.

The planner. She was out for a run when she saw a for-sale sign go up on a house she'd loved for years. She called me from the sidewalk. We'd been ready for months. Her photos were done, her price plan was built, and she knew her numbers. She wrote an offer that day, tied to the sale of her home, with a clear plan for how and when we'd sell it. Her house went on the market the next day and went under agreement, which means a buyer signed a deal, right on schedule. Two deals, one plan, no bridge loan, no rental in between.

The one who wanted to be sure. She wanted to know exactly how much she'd have to spend. She also knew an offer tied to her sale would be weak where she wanted to buy. So we listed her house first. She opened a HELOC as a backup for her down payment. She asked her buyer for a 60-day closing and a 60-day rent-back, and got both. She never had to draw on the HELOC. No panic. Just a plan.

Some owners can buy without selling. Others have to sell to buy. There's no right or wrong way. There's the way that fits your numbers and a timeline you can live with.

What are the risks of selling first or buying first?

Every path trades one set of risks for another. Pick the set you'd rather manage.

If you sell first, you don't know where you're going, when you'll get there, or what you'll pay. Rentals in the school district you want may be scarce the month you close. Prices or rates can rise while you wait.

If you buy first, you don't know who'll buy your house, when, or for how much. The market can shift. Meanwhile, you may carry two payments, a bridge loan, or both. That can push you to say yes to too little just to stop the bleeding.

The paths below are five ways to balance those two risks.

What are the five paths when you buy and sell at the same time?

Here they are, from most control to least.

1. Extended closing plus rent-back. Our favorite for most sellers. Your sale money is in the bank while you shop.
2. Contingent offer. That means your purchase depends on your sale, and both close within days of each other. Best in a balanced market or on homes that have been for sale a while.
3. Bridge loan or HELOC. Buy first, pay it back when your home sells. Needs strong equity and strong credit.
4. Buy-before-you-sell program. A company helps you buy first for a fee. Terms change often, so check them yourself.
5. Sell first, rent, then buy. Your money is free and clear, and you shop with no strings. It takes an extra move and a rental you can actually find.

Selling first isn't wrong. It assumes you can find a rental, handle two moves and ride out the market while you wait. That's true for some families and not for others. Our buy first or sell first guide walks through the choice.

How does an extended closing plus a rent-back work?

You sell first, but you don't move out right away. Two pieces make that work.

First, when your home goes under agreement, we ask for a longer closing. That gives you more time to find your next home. Many buyers need time for their loan anyway, so they often agree.

Second, at closing, we ask for a rent-back. A rent-back means you stay in your sold home for a set time after closing, under a short written agreement, and often pay the new owner a daily rate. Some buyers say yes. A buyer who has already sold their own home and needs the keys on a set day may not be able to.

Together, they give you room to shop with your sale money in the bank. No bridge loan, no rental hunt, no double move. Our step-by-step guide to lining up both moves shows the order.

When does a contingent offer work?

When your home is priced right and ready to sell, and the house you want is in a market where sellers will consider it.

A home sale contingency means your purchase depends on selling your current home first. Sellers who accept one usually add a kick-out clause. That lets them keep showing their home and gives you a short window to drop your contingency if a stronger offer comes in.

It's harder in a hot market and on brand new listings. It works better on homes that have been for sale a while. Read will a seller accept a home sale contingency for how to write one that gets taken seriously.

Should you use a bridge loan or a HELOC to buy first?

Only if you have strong equity, strong credit and you've found a home you can't risk losing.

A bridge loan is a short loan against the home you own. It covers your down payment until your house sells. A HELOC is a line of credit that uses your home as the backing, and the Consumer Financial Protection Bureau explains how they work. Either way, it's a second debt. Many lenders won't open a HELOC on a home that's already listed, so ask before you list.

The risk is time. If your home takes longer to sell than you planned, you carry both payments plus the loan. Budget for longer than you think.

“Many homeowners assume they need to sell their current home before they can buy the next one, and that's often not the case. One of the biggest mistakes I see is waiting until they find a home to explore their financing options.

With the right planning, we may be able to use a bridge loan, HELOC, or even exclude the current housing payment from qualifying, giving buyers access to their equity and the ability to make a stronger, non-contingent offer.

Exploring these options sooner rather than later also gives us more time to find the best structure and terms, instead of being forced into whatever last-minute solution is available. The earlier we build the strategy, the more options and flexibility a buyer typically has when the right house comes along.”

Which contingencies matter most when you buy and sell at once?

Two of them, and the fine print matters more than the name.

Home sale contingency. If you need the money from your sale to buy, your offer should depend on your sale through your closing, not just until your buyer gets a loan commitment. A loan commitment isn't a closed sale. Deals can fall apart between the two.

Suitable housing contingency. This is the flip side, for your sale. It lets you back out of selling if you can't find a next home in a set window. If you're selling only to buy one certain house, it should last through your purchase closing. That way, if the next home falls through, you still own yours.

Other protections show up too: inspection, title, appraisal, condo papers, well and septic. We walk through every one that applies before you sign.

“As a real estate attorney, I regularly work with clients who must sell their current home to buy a new one and want protection if the purchase falls through. Properly drafted contingencies are essential.

Many contingencies I review protect the wrong thing. Being under contract on your sale or even closing that sale isn't enough. You need the contingency to require actual access to the sale proceeds before you can close on the purchase.

The purchase contingency is harder to structure because it comes second in the sequence. Set a clear milestone as close as possible to the purchase closing date, such as your lender issuing a written ‘clear to close,’ if you can.

These terms are always part of the negotiation process, and the other side will push for you to carry more of the risk.”

What changes when you sell in Massachusetts and buy in New Hampshire?

A lot of our buy and sell clients cross the state line, in both directions. The Lisa Sevajian Group helps people buy and sell in MA and NH, so we plan for the differences.

• Attorneys: In Massachusetts, an attorney handles the closing. New Hampshire closings work differently. You may need help in both states.
• Paperwork timing: In Massachusetts, an accepted offer usually comes before the purchase and sale agreement, which is the full contract. Plan for that gap in your timeline.
• Taxes: New Hampshire doesn't tax wages, and it repealed its interest and dividends tax for tax periods starting January 1, 2025, according to the New Hampshire Department of Revenue. Property taxes vary town to town.
• Homestead: In Massachusetts, a homestead protects up to $125,000 of equity on its own, and up to $1,000,000 if you file a declaration at the Registry of Deeds, according to mass.gov. Put it on your attorney's checklist.

Our MA vs NH comparison has the side-by-side numbers. For closing day itself, read selling and buying on the same day.

What mistakes do people make when they buy and sell at once?

Most mistakes come from deciding before the numbers are in.

• Choosing a path because a friend did it that way
• Guessing what your home will sell for instead of using accurate similar sales
• Planning to carry two payments for three months when it could take six
• Writing a contingent offer with no backup money lined up if the kick-out clause kicks in
• Assuming you'll find a rental without checking first
• Never asking for a rent-back
• Booking movers before you know your closing dates

In real estate, anything can happen, and no two sales are the same. Get legal and lending advice before you sign anything.

This is general information, not legal, tax or lending advice. Check with your attorney, lender and CPA before you decide.

I'll guide you home.

Lisa Sevajian