Prenuptial, Cohabitation & Postnuptial Agreements
Why Relationship Agreements Matter in Alberta
Whether you are entering a new relationship, moving in together, or already married, a well‑drafted family law agreement can provide clarity, protection, and peace of mind. In Calgary and throughout Alberta, prenuptial agreements, cohabitation agreements, and postnuptial agreements (often called “marriage contracts”) are powerful tools for defining financial expectations and reducing conflict if the relationship ends.
These agreements are especially important for:
- High-net worth individuals
- Business owners and entrepreneurs
- Professionals with growing practices
- Couples entering second marriages or partnerships
- Blended families
- Anyone wanting certainty around property division or support
A properly drafted agreement can prevent costly litigation, protect family assets, and ensure both partners understand their rights and obligations.
Prenuptial Agreements
A proactive agreement before marriage.
What is a Prenuptial Agreement?
A prenuptial agreement (or “prenup”) is a contract signed before marriage that outlines how property, assets, debts, and support will be handled if the marriage ends. In Alberta, prenuptial agreements are governed by the Family Property Act (Alberta), which allows couples to contract out of the default property division rules.
Common Reasons Calgary Couples Choose Prenuptial Agreements
- Protecting business interests or professional practices
- Preserving family wealth, inheritances, or pre‑marital assets
- Clarifying expectations around spousal support
- Avoiding future disputes about property division
- Protecting children from previous relationships
Prenup Advantages
- Certainty and predictability about financial outcomes
- Protection of pre‑marital assets and family property
- Reduced conflict if separation occurs
- Efficient and cost‑effective compared to litigation
- Customizable to your unique financial circumstances
Prenup Limitations
- Requires open, honest financial disclosure
- Can feel uncomfortable to discuss before marriage
- Must be carefully drafted to ensure enforceability
- May need updating if circumstances change significantly
Cohabitation Agreements
Protecting partners who live together but are not married.
What is a Cohabitation Agreement?
A cohabitation agreement is a contract between partners who are living together or planning to live together without getting married. In Alberta, unmarried couples may still have property and support rights under the Family Property Act (Alberta) and Adult Interdependent Relationships Act (Alberta), which can create unexpected obligations.
Why Cohabitation Agreements are Popular in Alberta
- Many couples choose long‑term partnerships without marriage
- Protecting a home one partner already owns
- Clarifying financial contributions to shared expenses
- Avoiding disputes about “common‑law” rights (these are largely codified under legislation)
- Protecting business or investment assets
A cohabitation agreement allows couples to define:
- How property will be owned and divided
- Whether spousal support will be paid
- How joint purchases will be handled
- What happens if the relationship ends
Cohab Advantages
- Prevents uncertainty about common‑law property rights
- Protects individual assets brought into the relationship
- Clarifies financial expectations during cohabitation
- Reduces conflict if the relationship ends
- Flexible and customizable
Cohab Limitations
- Requires full financial transparency
- May need to be updated if the couple later marries and circumstances change
- Can be emotionally sensitive to negotiate
Postnuptial Agreements
A marriage contract created after the wedding.
What is a Postnuptial Agreement?
A postnuptial agreement (or “postnup”) is a contract signed after marriage that outlines how property and support will be handled if the relationship ends. These agreements are increasingly common in Calgary, especially for couples who experience major financial changes during the marriage.
Reasons Couples Choose Postnuptial Agreements
- One spouse starts or grows a business
- Significant inheritance or family wealth enters the picture
- The couple wants to revise or replace a prenuptial agreement
- A major financial imbalance develops
- The spouses want clarity after a period of conflict or uncertainty
Postnup Advantages
- Can protect new assets acquired during marriage
- Reduces uncertainty about financial obligations
- Can strengthen the relationship by clarifying expectations
- Useful for business owners who need stability for shareholders or partners
Postnup Limitations
- Must be carefully drafted to avoid claims of pressure or unfairness
- Requires full financial disclosure
- May be challenged if circumstances change dramatically
The Process of Creating a Relationship Agreement in Calgary
STEP 1: Initial Consultation
You meet with a family lawyer to discuss your goals, financial circumstances, and the type of agreement that fits your situation
STEP 2: Full Financial Disclosure
Both partners exchange detailed financial information, including:- Assets
- Debts
- Income
- Business interests
- Investments
- Pensions
STEP 3: Drafting the Agreement
Your lawyer prepares a customized agreement tailored to your needs, addressing:
- Property division
- Spousal support
- Excluded property
- Joint assets
- Debt allocation
- Business protection
- Inheritance planning
STEP 4: Lawyers to Review and Negotiate Terms
Lawyers will often communicate to negotiate the more specific terms of the agreement to ensure all circumstances have been fully contemplated.
STEP 5: Independent Legal Advice
Each partner must receive legal advice from their own lawyer. This ensures fairness and protects the agreement from future challenges.
STEP 6: Signing the Agreement
Once both parties are satisfied, the agreement is signed and becomes legally binding.
Comparison of Common Domestic Contracts
Agreement Type | When It's Signed | Who It's For | Common Uses |
|---|---|---|---|
Prenuptial Agreement | Before marriage | Engaged couples | Protecting pre‑marital assets, business interests, inheritance |
Cohabitation Agreement | Before or during cohabitation | Unmarried couples | Defining property rights, avoiding common‑law disputes |
Postnuptial Agreement | After marriage | Married couples | Protecting new assets, updating financial expectations |
Why Calgary Clients Choose Cunningham Family Law for Prenuptial, Cohabitation, and Postnuptial Agreements
- Extensive experience with high-net worth property division
- Deep understanding of complex business structures, corporate assets, and tax considerations
- Highly technical and strong drafting skills reduce the risk of future uncertainty and litigation
- Strong negotiation skills with a practical, respectful approach to negotiation
- Clear, strategic advice tailored to each client's goals
- Broad relationships and access to financial and other experts as needed
We help client’s protect what matters most – their family, their assets, and their future.
Considering a Domestic Agreement?
Choosing the right lawyer to draft a prenuptial, cohabitation, or postnuptial agreement is one of the most important decisions you can make when planning your financial future. Clients across Calgary, Strathmore, Canmore, Airdrie, Cochrane, Okotoks, and the surrounding area trust our firm because we combine legal precision with a practical, respectful approach that protects your interests without creating unnecessary conflict.
Book a Confidential Consultation Today
Domestic Agreement FAQs
Are prenuptial, cohabitation, and postnuptial agreements enforceable in Alberta?
Yes. Alberta courts regularly uphold these agreements when they are properly drafted. Enforceability requires full financial disclosure, a prescribed certificate, independent legal advice for both partners, voluntary signing, and terms that align with the Family Property Act (Alberta). Poorly drafted or unfair agreements are more vulnerable to challenge.
Do unmarried couples in Alberta really need a cohabitation agreement?
Yes. Many people are surprised to learn that Alberta’s Family Property Act applies to unmarried couples in “adult interdependent relationships.” Without a cohabitation agreement, partners may have unexpected rights to property, support, or assets. A cohabitation agreement provides clarity and prevents disputes.
What can these agreements cover?
These agreements can address:
- Property ownership and division
- Excluded property (pre‑relationship assets, inheritances, gifts)
- Spousal support
- Business and corporate interests
- Debt allocation
- Joint purchases and financial contributions
- Expectations during the relationship
- What happens if the relationship ends
They are highly customizable to your circumstances.
Do both partners need independent legal advice?
Yes. Independent legal advice is essential for enforceability in Alberta. Each partner must understand the agreement, its consequences, and their rights. Courts are more likely to uphold agreements when both parties had proper legal guidance.
What happens if we get married after signing a cohabitation agreement?
A cohabitation agreement can remain valid after marriage, but it is often wise to review or update it. Many couples convert their cohabitation agreement into a postnuptial agreement to ensure it reflects their current circumstances and remains enforceable.
Can we include spousal support terms in these agreements?
Yes. Couples can agree on whether spousal support will be paid, how much, and for how long. However, Alberta courts may intervene if the terms are extremely unfair at the time of separation. Proper drafting is essential to reduce the risk of future challenges.
Can these agreements protect my business or professional practice?
Absolutely. Many Calgary business owners, entrepreneurs, and professionals use these agreements to:
- Protect business shares
- Prevent disruption to corporate operations
- Clarify ownership of growth during the relationship
- Protect partners, shareholders, and investors
A well‑drafted agreement can safeguard your business from future disputes.
What if my financial situation changes after signing the agreement?
Life changes, and your agreement should reflect that. Major events such as business growth, inheritance, children, or significant income changes may require an update. Reviewing your agreement periodically helps ensure it remains fair and enforceable.
Are these agreements only for wealthy individuals?
Not at all. While high‑net‑worth individuals often benefit from them, these agreements are valuable for anyone who wants clarity, fairness, and protection. They help couples avoid conflict and ensure both partners understand their financial rights.
What happens if one partner refuses to sign?
These agreements are voluntary. If one partner is unwilling, the agreement cannot be forced. In that case, you may need to rely on Alberta’s default property and support laws, which may not reflect your intentions.
How long does it take to create a prenuptial or cohabitation agreement?
Timelines vary depending on complexity and how quickly both partners provide financial disclosure. Simple agreements may take a few weeks for the entire process, including negotiation of terms and counsel review; more complex agreements involving businesses, trusts, or multiple properties may take longer. Starting early is always recommended, especially before a wedding. Ask us about our priority drafting services.
What makes an agreement vulnerable to being overturned?
Courts may set aside an agreement if:
- One partner did not receive independent legal advice
- There was incomplete or dishonest financial disclosure
- The agreement was signed under pressure
- The terms are extremely unfair at the time of separation
- The agreement is outdated and no longer reflects reality
Proper drafting and regular updates reduce these risks.
Can we draft our own agreement without lawyers?
You can, but it is not recommended. Agreements drafted without legal advice are far more likely to be challenged or invalidated. Alberta courts expect these agreements to be prepared with proper disclosure, fairness, and legal guidance.
How do we start the process?
The first step is scheduling a consultation with a family lawyer experienced in drafting prenuptial, cohabitation, and postnuptial agreements. You’ll discuss your goals, financial circumstances, and the type of agreement that best fits your situation. From there, the lawyer will guide you through disclosure, drafting, negotiation, and signing.
Content posted on our website is not legal advice. Please contact us for legal advice specific to your unique circumstances.