Buying a condo in Massachusetts comes with more than just a mortgage payment and monthly HOA fees. It also means becoming part of a condo association governed by legal documents that define ownership, responsibilities, restrictions, and financial obligations.
One of the most important — and most overlooked — documents is the condo association’s master deed.
Unfortunately, many condo buyers either never read the master deed or skim through it without understanding what they’re actually agreeing to. That can lead to costly surprises involving maintenance responsibilities, pet restrictions, rental limitations, insurance gaps, or unexpected assessments.
The good news is you don’t need to be an attorney to understand the basics. Once you know what to look for, the master deed becomes much easier to navigate.
In this article, we’ll explain what a condo master deed is, why it matters, and the key sections buyers should review before purchasing a condo.
What Is a Condo Master Deed?
A master deed is the legal document that officially creates the condominium association and defines how the property is structured and governed. In Massachusetts, the master deed is recorded with the county registry of deeds and outlines:
- Unit ownership boundaries
- Common area ownership
- Percentage ownership interests
- Condo association responsibilities
- Unit owner obligations
- Rules and restrictions
Think of it as the legal blueprint for how the condominium operates. While buyers often focus heavily on the inspection or mortgage process, the master deed can have just as much impact on your long-term experience as a condo owner.
Why the Master Deed Matters
The master deed determines what you actually own versus what the association owns and maintains. This distinction affects:
- Insurance responsibilities
- Maintenance costs
- Renovation permissions
- HOA fees
- Voting rights
- Future resale flexibility
Many condo owners are surprised to discover they are responsible for items such as windows, plumbing lines, decks, HVAC units, or structural components they assumed were covered by the association.
Others discover after closing that the association limits rentals or prohibits certain renovations.
Reading the master deed before buying helps you avoid these surprises later.
Key Sections Every Condo Buyer Should Review
1. Unit Boundaries
This section defines the legal boundaries of your unit and clarifies responsibility for elements such as:
- Interior walls
- Flooring
- Windows
- Decks or balconies
- Plumbing
- Electrical systems
These distinctions matter for both insurance and maintenance. If a water leak damages your flooring, for example, the master deed determines whether the HOA or the unit owner pays for repairs.
2. Common Areas and Limited Common Areas
The master deed explains which areas are common property shared by all owners, such as:
- Hallways
- Roofs
- Parking areas
- Elevators
- Outdoor spaces
It also defines “limited common areas”—shared elements reserved for specific units, including:
- Balconies
- Patios
- Assigned parking spaces
- Storage units
Understanding who maintains and repairs each space can help avoid disputes later.
3. Percentage Ownership Interest
Each unit has a defined ownership percentage of the overall condominium. This percentage typically determines:
- Monthly HOA fees
- Voting power
- Responsibility for special assessments
Larger units often carry higher percentages, which means higher monthly fees. Reviewing this section explains why dues vary within the same building.
4. Maintenance Responsibilities
Many disagreements stem from unclear maintenance responsibilities. The master deed should outline who is responsible for:
- Windows
- Roof systems
- Plumbing lines
- HVAC systems
- Exterior surfaces
- Decks and balconies
This is particularly important in older Boston-area buildings with shared systems that cross unit boundaries.
5. Rules, Restrictions, and Rental Policies
The master deed or related bylaws may include restrictions involving:
- Pets
- Short-term rentals
- Long-term leasing
- Renovations
- Noise
- Smoking
- Parking
If you plan to rent your unit or make improvements, these sections are essential to review.
6. Insurance Requirements
This section outlines insurance obligations, including:
- What the HOA master policy covers
- What owners must insure personally
- Deductible responsibility
- Liability expectations
This is especially important to avoid coverage gaps between the HOA’s policy and your own HO‑6 condo insurance.
Final Thoughts on Reading a Condo Master Deed
A condo master deed may seem intimidating at first, but reviewing it carefully before buying can protect you from major financial and lifestyle surprises later.
Buying a condo means buying into a shared ownership structure — not just purchasing interior square footage. The master deed explains exactly how that structure works and what responsibilities come with ownership.
Before closing on any condo, take the time to review the master deed with your real estate attorney, insurance advisor, or agent. That extra diligence can help you avoid costly misunderstandings and make a more confident buying decision.
