In November 2007, more than 600 households on the Boston waterfront opened an envelope that changed their year. The two Harbor Towers on East India Row, the I.M. Pei firm’s 1971 concrete high-rises that gave the waterfront its skyline, had voted a one-time special assessment of $75.6 million. Every owner’s share landed somewhere between $70,000 and $400,000, pegged to roughly 20 percent of what their unit was worth. The reason was not a storm or a fire. The buildings’ heating, cooling, ventilation, and electrical systems had been quietly failing for years, the central pipes so corroded they had to be replaced outright. Many owners could not write the check. As one account of the fight put it plainly, residents “literally couldn’t afford to pay their share and were forced to sell and move out.”
It remains, by most accounts, the largest condominium special assessment in Boston’s history. And here is the part that matters for anyone shopping for a condo today: it was not bad luck. A building does not corrode overnight. The cost was knowable, and knowable years in advance, in a document most buyers are handed and never open. That document is the reserve study, and reading it well is the single most valuable hour of due diligence you will do before you sign.
I watch buyers waive their condo document review period every week to make an offer look cleaner. In a tight market that instinct is understandable. It is also the riskiest habit in Boston’s condo market right now, and the numbers below are the reason it is getting riskier, not safer.
A special assessment is a bill for maintenance that already happened
Start with the vocabulary, because buyers mix these up and it costs them. Your monthly condo fee covers day-to-day operations, insurance, landscaping, and, if the board is doing its job, a monthly contribution into reserves. Reserves are the savings account for big, predictable, expensive things: the roof, the elevators, the facade, the boilers, the parking deck, the siding. A special assessment is what a board levies when that savings account cannot cover the bill that just came due.
The cleanest way to think about deferred maintenance is as a loan the building takes out against itself. Every year an association underfunds its reserves, it borrows a little more from its own future. The interest is real. Steel keeps rusting, a small roof leak becomes a structural repair, and the eventual bill compounds. The special assessment is the balloon payment. The reserve study is the amortization schedule you are allowed to read before you buy in.
Low fees feel like a feature when you are shopping. They are often the warning sign. Eric Churchill, an executive at a Boston-area management firm, put the life cycle bluntly in a recent Boston Globe piece: “Lower condo fees attract people, but then the community reaches an age when all of a sudden the maintenance bills start going up.” Stephen Marcus, one of the deans of Massachusetts condominium law, said the same thing about what happens when a board keeps fees artificially low: “maintenance gets deferred. Repairs aren’t made, so $100,000 problems become million-dollar problems.” Harbor Towers is that sentence at full scale.
What a reserve study actually is, and what it is not
A reserve study is not the annual budget, and it is not the same as a healthy checking balance. It is a professional forecast. A reserve analyst inventories every major shared component in the building, estimates how many years of useful life each one has left, prices what it will cost to replace, and then builds a multi-decade funding plan so the money is there when the roof or the elevator reaches the end of its life.
Two halves matter. The component inventory tells you what is coming and when. The funding plan tells you whether the association is on track to pay for it or is quietly falling behind. A good study is refreshed every three to five years and updated after any major project. A study from 2014 that nobody has touched is barely better than no study at all.
One Massachusetts wrinkle you need to know: state law does not require an existing condominium to have a reserve study at all. Chapter 183A, the statute that governs condos here, is largely silent on reserves for resales. So when a building cannot produce a study, that absence is itself a data point. It usually means a small or self-managed association that has never forced itself to look at the ten-year picture. Sometimes that is fine. Often it is the buildings most exposed to a surprise.
The one line that matters most: percent funded
If you read one number in the whole study, read percent funded. It compares the money the association actually has in reserves against the money it should have on hand given how worn its components are. The formula the reserve profession uses is simple: percent funded equals the actual reserve balance divided by the fully funded balance. At 100 percent, the savings account matches the wear and tear on the building. At 40 percent, it is less than half of where it should be.
The industry scale, used by firms like Association Reserves and echoed by the Community Associations Institute, sorts buildings into three bands. I read them like this:
My rule as an agent: I get cautious anywhere under 70 percent, and I treat anything under 30 percent as a genuine red flag that needs a real explanation before my buyer goes further. A low number is not automatically a deal killer. A building that just finished a planned roof replacement will show a temporary dip, and that is fine because the work is done. What you are hunting for is the opposite: a low number with a long list of aging components still ahead of it and no plan to fund them. That is a Harbor Towers in slow motion.
Why 2007 is not just a history lesson
You could file the Harbor Towers story under cautionary period piece if the pressures behind it had eased. They have not. They are building again, right now, across Greater Boston.
Condo fees have climbed hard. A LendingTree analysis reported in the Boston Globe this spring put the median monthly condo fee in Boston at $386, and found that nearly 30 percent of Boston condo owners now pay more than $500 a month. Those are not luxury Seaport outliers. That is the middle of the market.
Three forces are driving it. The first is insurance. Master policy premiums have jumped across the region, and buildings with any coastal or flood exposure are getting squeezed hardest as carriers pull back and more associations land in the state’s FAIR Plan of last resort. The second is deferred maintenance coming due in a housing stock that skews old, which is most of Boston. The third is the one that turns a soft reserve into a hard financing problem, and it deserves its own section.
The Fannie Mae rule that turns a weak reserve into a financing problem
After the 2021 Surfside collapse in Florida, Fannie Mae and Freddie Mac started scrutinizing condo association finances far more aggressively before they will back a mortgage on a unit. The rules are now tightening on a clock.
The headline change: the minimum a budget must allocate to reserves is rising from 10 percent to 15 percent of the annual operating budget, effective for loan applications dated on or after January 4, 2027 (Fannie Mae Lender Letter LL-2026-03, and Freddie Mac mirrors it). On a hypothetical association collecting $1,000,000 a year, that is the difference between setting aside $100,000 and $150,000 for reserves. Multiply that across an underfunded building and you get exactly what you would expect: higher fees, or an assessment to catch up, or both.
Here is why a buyer should care about a lender’s paperwork. If an association fails these tests, the building can be labeled non-warrantable, which means Fannie Mae and Freddie Mac will not back a conventional mortgage on any unit in it. The buyer pool for those units shrinks to cash and specialty portfolio loans, and that thinner demand can pull values down by a reported 5 to 30 percent. So a reserve study is no longer just about avoiding a future assessment. A current, well-funded study is increasingly what keeps a building financeable, and financeability is what protects your resale. I wrote a fuller breakdown of how the Fannie Mae reserve rule hits Boston condos if you want the mechanics.
The documents to actually request, and the three years of minutes nobody reads
Because Massachusetts does not mandate a resale disclosure package the way Florida or Virginia do, none of this shows up automatically. The 6(d) certificate your closing requires only proves the seller is current on their fees. It says nothing about the building’s health. In Massachusetts, your condo document review is a contractual contingency you negotiate into the offer, not a right the statute hands you. If you waive it, you have waived your only clean look under the hood.
When you keep the contingency, ask for all of it and give yourself real time to read it:
- The reserve study, if one exists, plus the current and prior year budgets. Read the percent funded line first, then check whether the monthly reserve contribution is rising or flat.
- The master deed and the declaration of trust or bylaws, so you know what the association is responsible for versus what falls on you as the unit owner.
- The last three years of board and association meeting minutes. This is the document buyers skip and the one I read most carefully.
- The master insurance certificate, including the deductible. A five-figure or six-figure master deductible can quietly become a special assessment after a single bad claim.
- Any special assessment history, pending litigation, and the reserve fund balance in writing.
The minutes are where a building tells on itself. You are looking for the same worry showing up meeting after meeting: a roof that keeps leaking, an elevator that keeps failing inspection, an insurance carrier that sent a non-renewal notice, a special assessment that got proposed and then tabled because owners pushed back. A board that argues about the same expensive problem for two years and never funds it is telling you exactly what is coming. This is the same discipline I push on the inspection side, and it is why I am wary of the pressure to waive contingencies just to win a bid.
Not every condo carries the same risk
Risk is not evenly spread across Boston’s condo stock. The building type tells you a lot about where the danger sits and what to check first.
| Building type | Typical reserve health | What triggers an assessment | Check first |
|---|---|---|---|
| Triple-decker & small conversions Dorchester, Somerville, JP, East Boston, 2 to 8 units |
Often self-managed, thin reserves, frequently no formal study | Roof, porches and decks, a single heating system, exterior paint. Few owners split each bill, so per-unit exposure is high | Is there any reserve at all, and who actually manages the money |
| Older brick rowhouse conversions Back Bay, South End, Beacon Hill, 19th century masonry |
Mixed. Depends entirely on how disciplined the trustees are | Facade and repointing, parapets, flat roofs, old plumbing and knob and tube wiring, shared chimneys | Facade and roof history in the minutes, and the age of the last major systems work |
| Newer high-rise towers Seaport, downtown, professionally managed |
Usually a real study and professional management, but high fees | Elevators, garage decks, curtain wall and facade, big mechanical systems, plus early new-construction defect claims | The size of future big-ticket projects versus the reserve balance funding them |
Harbor Towers, worth remembering, was the third category. Professional management and a marquee address did not save those owners, because the mechanical systems were original to 1971 and the reserves were nowhere close to the bill. Size and prestige are not the same as funded.
If you already own, this is your problem too
This is not only a buyer’s issue. If you own in a building that is underfunded, the Fannie Mae changes reach you even if you have no plans to sell. The day a buyer for the unit down the hall cannot get a conventional loan because the association failed a warrantability test, your building’s values take the hit, and so does your ability to refinance.
The move is not complicated. Push your board to commission or update a reserve study if there is not a current one. Read your own minutes with the same skepticism a buyer would. And reframe the trade you are actually making. Scott Wolf, who runs a Boston area management company, sees owners resist repairs because they feel they cannot afford them. His answer is the right one: “The truth is, they can’t afford not to make them.” A modest, boring fee increase this year is almost always cheaper than a five-figure assessment in three. If you want to see where your building’s numbers put you before you decide anything, our home value tools and the wider condo living resources are a place to start.
The cheapest insurance you will be tempted to decline
Come back to that November 2007 envelope. What made Harbor Towers a tragedy was not the $75.6 million. Buildings age and big systems die on a schedule everyone can see coming. What made it a tragedy is that the cost arrived as a surprise to owners who had every legal right to see it coming and, for whatever reason, did not look until the bill was in their hands.
That is the good news buried in all of this. A special assessment feels like an act of God when it lands, but it is almost never bad luck. It is a due diligence problem, which means it is a solvable problem. The reserve study, the minutes, the budget, and the master insurance certificate are sitting in a folder the seller can produce. In Massachusetts you have to negotiate the right to read them, and the temptation in a hot market is to give that right away to make your offer look stronger. With the financing rules tightening in August 2026 and again in January 2027, that is the wrong trade at exactly the wrong time.
Read the percent funded line. Read three years of minutes. Ask what big projects are coming and whether there is money for them. If you would like a second set of eyes on a building’s documents before you sign, that is a lot of what I do for condo buyers across Greater Boston. Reach out through the buyer resources here or explore more of our guides to buying in Massachusetts. An hour with the reserve study is the cheapest insurance you will ever be offered, and the only kind you buy after the fact by writing a much larger check.
