Buying a Cottage With Family or Friends in Ontario: What the Co-Ownership Agreement Should Cover

Buying a cottage with siblings, parents, or close friends usually starts with genuine enthusiasm and a shared vision of long summers together. Years later, without anything in writing, that same arrangement can be the source of real strain — over who gets which weeks, who's paying for the new roof, and what happens when one owner wants out and the others don't.

A cottage co-ownership agreement isn't a sign of distrust among family or friends. It's a way of settling, while everyone still agrees, the questions that are much harder to answer later once expectations have already diverged.

Why a Handshake Isn't Enough

Verbal understandings work fine until they don't — usually at the exact moment they're tested by a real disagreement, a change in someone's finances, or a death in the family. A written agreement doesn't prevent every disagreement, but it gives everyone a shared, specific reference point instead of competing memories of what was "always understood."

Choosing How You'll Hold Title

Before drafting the details, co-owners need to decide the basic legal structure:

• Joint tenancy carries a right of survivorship — when one owner dies, their interest passes automatically to the surviving joint owners, not through their estate.
• Tenancy in common gives each owner a distinct, separately transferable and inheritable share, which can be left to whomever the owner chooses in their will.

Neither structure is automatically "better" — the right choice depends on the group's goals, particularly around succession, and should be made deliberately rather than by default.

What a Cottage Co-Ownership Agreement Should Cover

Usage and Scheduling

How weeks or seasons are allocated among owners, how holidays and peak periods are handled, and what happens if someone wants to bring guests or rent out their allotted time.

Cost-Sharing

• [ ] How ongoing costs (property tax, insurance, utilities, general maintenance) are split and collected.
• [ ] How major capital expenses (a new roof, septic replacement, dock rebuild) are approved and funded.
• [ ] What happens if one owner falls behind on their share.

Decision-Making

Which decisions require unanimous agreement (selling the property, taking on debt against it) versus which can be made by a simple majority or a designated managing owner.

Selling or Transferring a Share

Whether an owner can sell their share to an outsider, whether the other owners get a right of first refusal, and how a fair price is determined if a buyout happens between co-owners.

Death or Incapacity of an Owner

How the agreement interacts with each owner's estate plan — particularly important where ownership is structured as tenancy in common, since a deceased owner's share will pass according to their will rather than automatically to the other cottage owners.

Dispute Resolution

A process for resolving disagreements — often starting with a defined discussion or mediation step — before anyone is looking at more formal, and more expensive, options.

Putting It in Writing

A cottage co-ownership agreement works best as its own standalone document, reviewed alongside how title is actually structured and how each owner's will treats their share. These pieces need to work together: an agreement that assumes tenancy in common won't function as intended if the property is actually held in joint tenancy, and a will that's silent on the cottage can undercut an otherwise well-drafted agreement.

Frequently asked questions