What to Know Before You Sign a Lease in Boston

What You'll Need

Gather these before you sign anything or send money:

• The complete lease, including every addendum and rider, with the start and end dates filled in, and confirmation of whether you are signing a fixed-term written lease or taking a tenancy-at-will — the notice rules differ under M.G.L. c. 186, §11 (written lease) and §12 (tenant at will) (docdraft.ai, undated).
• An itemized list of every move-in charge. In Massachusetts, landlords can only charge tenants at move-in for first month's rent, last month's rent, a new lock and key, and a security deposit (Mass Legal Help, undated). If you are asked for anything else, ask in writing what it is for.
• The security deposit amount in writing, confirmed against the rule that a security deposit cannot be more than the tenant's first month's rent (Mass Legal Help, undated).
• The notice period for moving out, written as a number of days, plus whether the lease renews automatically if nobody gives notice.
• The lead paint disclosure if the building predates 1978: landlords renting pre-1978 housing must inform tenants about known lead-based paint hazards and provide the EPA Lead Safe Housing Rule pamphlet and disclosure forms (Boston Housing Authority, undated).
• A written answer on utilities and heat — which accounts go in your name, and which the landlord pays, stated in the lease rather than by text message.
• Dated photos or video of every room, taken before you move furniture in, to pair with the Statement of Condition.
• Names and contact details for whoever actually owns the building, not just the showing agent, so you know who is legally holding your money.

Step-by-Step Process

1. Before you apply, set your ceiling against citywide benchmarks: Redfin reported the average rent in Boston at $3,790 as of August 2025 (Redfin, 2025-08), while Zillow listed $3,350 for all bedrooms and all property types in Boston as of July 31, 2025 (Zillow, 2025-07-31). Different methods, different numbers — use them as context, not as a price for your unit.
2. Before signing, read the full lease and ask for a written itemization of move-in charges. If the total includes anything beyond first, last, lock and key, and deposit, resolve it before signing rather than after (Mass Legal Help, undated).
3. On the day you pay, get a dated receipt for every payment. Within 30 days of receiving the security deposit, the landlord must give you a receipt stating what bank it is held in (Mass Legal Help, undated). Calendar that date.
4. Within 10 days of moving in, expect the Statement of Condition describing the unit, which the landlord must provide if they took a security deposit (Mass Legal Help, undated). Reply in writing with anything it misses, and keep a copy of what you sent.
5. In your first week, file the lease, receipts, Statement of Condition, lead disclosure, and your dated move-in photos in one place — digital and paper.
6. During the tenancy, track interest: a landlord holding a security deposit or last month's rent must pay interest at five per cent per year, or the lesser amount received from the bank where the deposit is held (Massachusetts Legislature, undated). Interest on last month's rent paid in advance runs from the first day of tenancy (Massachusetts Legislature, undated).
7. If the building is sold, watch the clock: the new landlord has 45 days to send you notice about the security deposit, last month's rent, and interest, or the old landlord must return the deposit plus interest (Mass Legal Help, undated).
8. At the end of the tenancy, give written notice in the form your lease or §12 requires, do a walkthrough with photos, and expect the deposit or the balance within 30 days after the termination of occupancy (Massachusetts Legislature, undated).

Sample Script

Send this by email before signing, so the answer is in writing.

Email: confirming move-in costs and deposit paperwork

Hi [name],

Before I sign the lease for the one-bedroom at [address] in Boston, could you confirm the following in writing?

1. The full move-in total, itemized. My understanding is that first month's rent, last month's rent, a new lock and key, and a security deposit are what a Massachusetts landlord may collect at move-in. 2. That the $2,400 security deposit for this unit is not more than one month's rent, and the name of the bank where it will be held, so the 30-day receipt matches. 3. That I will receive the Statement of Condition within 10 days of moving in. 4. Whether the building predates 1978, and the lead disclosure if so.

Thanks — happy to sign once these are confirmed.

[Your name]

Common Mistakes to Avoid

• Paying an extra "move-in" or "administrative" charge without questioning it. Massachusetts allows a landlord to charge, at move-in, for first and last month's rent, a new lock and key, and a security deposit (Mass Legal Help, undated). Money paid outside that list is money you may have to chase later.
• Letting the 30-day bank receipt and the 10-day Statement of Condition slide. Those documents are the paper trail behind M.G.L. c. 186, §15B. A landlord who fails to return the deposit or comply with the statute is liable for three times the deposit plus 5% interest, costs and attorney's fees (LeaseLenses, undated) — but you need the record to show it.
• Giving verbal notice on a tenancy-at-will. A no-cause termination under §12 requires written notice equal to the rent-payment interval or 30 days, whichever is longer (docdraft.ai, undated). Miss it and you can owe another month's rent.
• Assuming rent is capped. A statewide ban on rent control, Chapter 40P, was enacted via referendum in 1994 (MassLandlords.net, undated). If you want price certainty, the condition is a fixed-term written lease stating the rent for the whole term.
• Ignoring a notice to quit for nonpayment. Under §§11 and 12, 14 days written notice to quit is required for nonpayment of rent, with a statutory right to cure (docdraft.ai, undated). Paying within that window is the point of the notice.
• Skipping the lead disclosure when a young child will live there. The Massachusetts Lead Law requires an owner to remove or cover lead paint hazards in homes built before 1978 where any children under 6 live (Mass Legal Help, undated).

State and Local Rules to Check

Frequently asked questions

Sources

1. Massachusetts Legislature (malegislature.gov) — General Law - Part II, Title I, Chapter 186, Section 15B
2. Mass Legal Help — Security deposit basics for Massachusetts tenants
3. LeaseLenses — What Is the Penalty for Not Returning a Security Deposit in Massachusetts?
4. docdraft.ai — Massachusetts Notice to Quit: 2026 Landlord Eviction Rules
5. Mass Legal Help — Your Right to Be Protected from Lead Poisoning
6. Boston Housing Authority — Lead Paint Laws (Federal and State)
7. MassLandlords.net — MassLandlords Testimony in Opposition to An Act Enabling Local Options for Tenant Protections 192 H.1378 S.886
8. Redfin — Rental market trends for Boston, MA (2025-08)
9. Zillow — Average Rental Price in Boston, MA & Market Trends (2025-07-31)