Boston runs on a rental calendar no other American city has. Something close to two-thirds of the city's leases turn over on September 1. That single date shapes when your building shows well, what a buyer will underwrite it at, and whether you get a clean sale or a discounted one.

Most owners think of the sale and the leases as separate problems. They are the same problem.

The lease travels with the building

A valid written lease survives the sale. The buyer steps into your position as landlord and holds the tenancy on its existing terms until it expires. A sale is not grounds to terminate a tenancy in Massachusetts, and it is not grounds to shorten one.

For a tenancy at will or a month-to-month arrangement, the owner can terminate with written notice of at least thirty days or one full rental period, whichever is longer. That does not make it fast, and if the tenant does not leave voluntarily, removal runs through summary process in housing court. Nobody buys a building on the assumption that a court schedule will cooperate with their renovation timeline.

The practical consequence: your buyer pool is defined by your rent roll. If the units are leased through August 31 at below-market rents, you are not selling to an owner-occupant who needs to move in November. You are selling to an investor, and investors price on the numbers you hand them.

Three sale paths and what each one costs you

Sell fully occupied, leases in place. Fastest to list, widest investor pool, weakest owner-occupant demand. Your price is a function of the rent roll. If your rents are twenty percent under market because you have been good to long-term tenants, a buyer capitalizes that gap and takes it out of your price. This is the single most common way Boston multifamily owners leave money behind.

Sell with one unit delivered vacant. This is the sweet spot in Dorchester, East Boston, and Everett right now. An owner-occupant buyer using a low-down-payment loan needs a unit to move into. Delivering one vacant unit opens your listing to that buyer pool, and owner-occupants pay more than investors because they are underwriting a home rather than a return. Timing it against the September 1 turnover means you can let a natural lease expiration create the vacancy instead of paying for it.

Sell fully vacant. Highest price ceiling, highest risk, longest runway. You carry the building empty through a marketing period and any financing delays. Worth it for a building being sold to a developer or a gut-renovation buyer. Rarely worth it for a solid three-family with functional units.

Cash for keys, done correctly

If you need a unit vacant ahead of a lease expiration, the tenant has to agree. There is no mechanism that forces it. A buyout agreement, commonly called cash for keys, is a negotiated payment in exchange for a voluntary surrender of the tenancy on a set date.

What makes them fail: verbal deals, no written termination agreement, no confirmed move-out date, and an amount that ignores what the tenant actually faces. A Boston tenant vacating mid-lease is walking into a market where they need first month, last month, a security deposit, and often a broker fee, plus movers, during a period when almost nothing is available because everyone else moves on September 1. Offer an amount that reflects that reality and get it papered by an attorney. Offer an insulting number and you have poisoned the relationship with the person who controls your timeline.

The documents that actually close the deal

Buyers and their lenders will ask for these. Have them before you list, not after the inspection:

• Every current lease, signed, with any amendments
• A rent roll showing actual collected rent, not asking rent
• Security deposit accounting, including the bank, the account, and interest paid. Massachusetts deposit rules are unforgiving and mishandled deposits create liability that follows the building
• Estoppel certificates from each tenant confirming rent, deposit held, and that the landlord is not in default
• Written notice to tenants of the intent to sell
• At closing, an assignment of leases and deposits, and a deposit transfer letter to each tenant

The deposit issue kills more Boston multifamily deals at the eleventh hour than inspection findings do. If deposits were never held in a separate account, or interest was never paid, find out now while it is a fixable problem rather than at the closing table where it becomes a credit.

Showings without wrecking the sale

You have the right to show the property. The tenant has a right to quiet enjoyment. Give real notice, twenty-four to forty-eight hours in writing, cluster showings into scheduled blocks rather than a steady drip of individual appointments, and tell the tenants what is happening and what it means for them.

A tenant who feels ambushed will mention the roof leak, the heat that never worked, and the neighbor problem to every buyer who walks through. A tenant who has been treated straight will let a buyer see a clean unit and move on. The difference is worth more than the marketing budget.

What the calendar says right now

If you are reading this in August, your leases are turning in weeks and the decision window for a fall listing is narrow. If you want to deliver a vacant unit on a natural expiration, you are working with the lease cycle that ends next August 31, which means the planning happens this fall and winter, not next summer.

Send me the rent roll and the lease expiration dates. I will tell you which of the three paths gets you the highest net, and what the gap between them is in dollars.

Chris Remmes, Managing Broker, Remmes & Co. [email protected] | 617-398-0015

This is general information about how Boston multifamily sales tend to work, not legal advice. Tenancy terminations, buyout agreements, and deposit handling should be reviewed by a Massachusetts real estate attorney.