The Risks of Poorly Drafted Clauses in Ontario Real Estate

July 24, 2026

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Real estate transactions involve significant financial commitments, important timelines and expectations that may continue well beyond the day an agreement is signed. Buyers and sellers naturally devote considerable attention to price, financing, inspections, possession dates and the physical property itself. Yet some of the most significant transaction risks can arise from something considerably less visible: the wording used in the agreement.

An Agreement of Purchase and Sale, lease or other real estate contract is intended to document what the parties have actually agreed to do. When that wording is clear, the agreement can provide direction throughout the transaction by establishing responsibilities, timelines, conditions and expectations. When important provisions are vague, incomplete or capable of more than one reasonable interpretation, however, uncertainty can emerge at precisely the time when the parties need the agreement to provide an answer.

Poor drafting does not necessarily mean that someone intended to create a problem. Quite often, disagreements develop because two parties believed they had reached the same understanding when they had actually interpreted the wording differently. Careful drafting is therefore not simply a matter of legal formality. It is an important part of transaction risk management.


The Agreement Needs to Reflect the Transaction That Was Actually Negotiated

Real estate negotiations often develop through conversations, emails, property showings, offers, counteroffers and discussions about how particular issues will be handled. The final contract has to translate those negotiations into a written agreement that accurately records the parties’ intentions.

This sounds straightforward, but problems can arise when an agreement contains language that does not fully capture what was discussed. A seller may believe that a particular item will be removed before closing while the buyer believes it is included with the property. A buyer may believe that a condition permits a broad investigation while the seller understands it much more narrowly. The parties may agree that a repair will be completed but fail to establish the required standard, timing or evidence of completion.

Once these understandings become important, the written agreement will generally become the primary reference point. The quality of the wording therefore matters because the contract needs to continue functioning even when memories differ, circumstances change or the transaction encounters a problem.

Professional Insight: A good clause should not merely record that something was discussed. It should make the parties’ responsibilities sufficiently clear that someone reviewing the agreement later can understand what was intended, who must act, and when that obligation must be completed.


Ambiguity Creates Risk Because Different Interpretations Can Both Seem Reasonable

One of the most common drafting problems is ambiguity. A clause may appear understandable when it is written because everyone involved knows what they are discussing. The difficulty arises when the wording is examined later without the benefit of those conversations.

Conditions involving financing, inspections, repairs, deposits, inclusions, due diligence or future use can all become problematic if essential details are left uncertain. A disagreement may develop over what needed to occur, whether an obligation was satisfied, who was responsible for taking a particular step or whether one of the parties had the right to terminate the transaction.

The problem is not necessarily that the clause contains complicated language. In fact, excessive complexity can sometimes make matters worse. The objective should be to express the intended arrangement as clearly and completely as the circumstances require, without leaving important elements dependent upon assumptions.

Good drafting therefore involves more than making a clause sound professional. It requires thinking through how the provision will actually operate if circumstances do not unfold exactly as expected.


Conditions Need to Explain More Than What the Buyer Wants to Investigate

Conditional clauses are among the most important risk-management tools available in a real estate transaction because they can provide time for a buyer to investigate matters before becoming fully committed. Financing, property inspections, insurance, document review, environmental investigation, zoning, leases and numerous other matters may appropriately become the subject of conditions depending upon the transaction.

The protection provided by a condition, however, depends heavily upon how the condition is structured. The agreement may need to address the time available for investigation, the nature of the approval being sought, any notice requirements, who has the benefit of the condition and what must occur for the condition to be waived or fulfilled.

A clause stating only that an agreement is “conditional on financing,” for example, may not address all of the practical circumstances that could matter to the purchaser. Financing can depend upon the purchaser, the lender’s assessment of the property, an appraisal, insurance, environmental matters or other lending requirements. The wording should reflect the protection actually required for the particular transaction rather than assuming that a generic phrase will always produce the intended result.

Professional Insight: The value of a condition is not measured by how familiar its wording appears. It is measured by whether the condition gives the client a practical and understandable way to complete the investigation and make the decision the clause was intended to protect.


Timelines Need Enough Precision to Avoid Creating a Second Dispute

Real estate transactions are highly dependent upon timing. Deposits must be delivered, conditions must be addressed, notices may need to be given and various documents or obligations may have to be completed before closing.

When the applicable timeline is clear, everyone knows what is expected. When the timing provision is incomplete, uncertainty can develop around when a deadline begins, when it expires, how notice must be delivered or what happens if the required action is not completed.

These issues can be particularly important where the clause creates a right that disappears if it is not exercised within a specified period. A purchaser should not discover after the fact that an investigation period expired earlier than expected, just as a seller should not be left uncertain about whether a transaction has become firm.

Precision around timing therefore supports more than legal certainty. It also helps the parties, their representatives, lawyers, lenders and other professionals coordinate the transaction effectively.


Verbal Understandings Should Not Be Asked to Carry the Weight of the Contract

Real estate transactions involve a great deal of discussion outside the written agreement. Parties may talk about repairs, appliances, improvements, occupancy, access, closing arrangements or how a particular issue will be resolved.

Those conversations can be useful during negotiation, but they should not be relied upon as a substitute for documenting material terms in the agreement.

People naturally remember discussions differently, particularly when a transaction extends over several weeks or involves numerous negotiations. What one person remembers as a commitment may have been understood by the other as a possibility or preliminary discussion. Once a disagreement develops, reconstructing those conversations can be difficult.

Where an understanding is important enough that the client expects to rely upon it, the safer approach is generally to consider whether it should be incorporated clearly into the written transaction documents.

This does not mean every conversation needs to become a contractual clause. It means important obligations should not depend solely upon everyone’s memory remaining identical until closing.


Standard Forms Provide a Framework, but Every Transaction Is Different

Standard real estate forms provide an important structure for Ontario transactions. They help organize many of the terms commonly required in purchases, sales and leases and create a familiar framework within which negotiations can occur.

The limitation is that standardized documentation cannot anticipate every property or every transaction.

A conventional residential resale may require relatively modest additional wording. A tenanted property, assignment, commercial building, industrial facility, development property or transaction involving unusual financing may require a much more tailored approach. Environmental concerns, existing leases, future use, equipment, operating costs, access rights, representations, indemnities and extended due-diligence requirements may all need transaction-specific attention.

The objective should not be to add clauses simply because a transaction appears complicated. Additional wording is useful only when it addresses a real issue and does so clearly. Overloading an agreement with unnecessary or overlapping provisions can create its own problems if those clauses become inconsistent with one another.

The better approach is to understand the transaction first and then determine what additional wording is necessary to document it properly.


Poor Drafting Can Create Problems Even When Nobody Goes to Court

Discussions about contract drafting often focus on litigation, but unclear wording can cause significant practical problems long before anyone considers legal proceedings.

A disagreement over repairs can delay closing preparations. Uncertainty about an inclusion may create conflict during a final inspection. A poorly structured condition can complicate financing. An unclear lease provision may create disagreement about operating costs. Conflicting clauses may force the parties to involve their lawyers in an issue that could otherwise have been straightforward.

These disruptions cost time and money even when the transaction ultimately closes.

For commercial businesses, the consequences can extend further. Delayed possession may affect staffing, inventory, equipment installation, lease expiries or business operations. For residential buyers and sellers, uncertainty near closing can affect moving arrangements, financing commitments and interconnected purchases or sales.

Clear drafting therefore supports transaction execution as much as it supports legal protection.


Residential Transactions Can Contain More Contractual Risk Than Their Familiarity Suggests

Residential transactions often use familiar forms and recurring clauses, which can create the impression that the contractual issues are relatively routine. The property and the circumstances, however, may be anything but routine.

A home may contain a tenanted unit, an unverified renovation, leased equipment, a septic system, unusual inclusions, solar equipment, an outstanding permit or a repair agreement negotiated during the offer process. A buyer may require financing protection that reflects a particular lending situation or an inspection condition dealing with concerns already identified at the property.

These circumstances illustrate why familiarity with the form should not replace consideration of the transaction itself. The fact that thousands of residential properties are bought and sold every year does not mean every transaction should use exactly the same clause structure.

For residential clients, good drafting often means identifying what is unusual about an otherwise familiar transaction and ensuring that the agreement addresses it appropriately.


Commercial and Industrial Transactions Usually Require Greater Contractual Detail

The importance of transaction-specific drafting becomes even greater in commercial and industrial real estate because the property is frequently connected directly to a business or investment strategy.

A commercial purchaser may need time to review leases, financial information, environmental reports, zoning, building systems, service contracts and tenant matters. An industrial buyer may be concerned with electrical capacity, outdoor storage, environmental history, equipment, access, expansion capability or whether the intended operation is permitted. A landlord and tenant negotiating a lease may need to allocate responsibility for repairs, operating costs, capital expenditures, insurance, maintenance, alterations and restoration.

These matters often interact with one another. A zoning condition, for example, may have little value if the purchaser cannot obtain the information required to assess the intended use within the available due-diligence period. An environmental condition may need to accommodate both the investigation itself and the lender’s review of the results.

Commercial drafting therefore benefits from considering how the transaction is expected to function operationally rather than treating each clause as an isolated legal provision.

Professional Insight: In more complex transactions, the issue is often not whether an individual clause appears reasonable on its own. The more important question is whether all of the clauses work together without creating gaps, contradictions or unintended consequences.


A Clause Should Allocate Risk Deliberately

Many contractual provisions ultimately determine who assumes a particular risk.

If a building component fails before closing, who bears the responsibility? If environmental information is incomplete, does the purchaser proceed or retain a right to investigate further? If a tenant has not complied with a lease obligation, who addresses the problem? If specified work must be completed, what standard applies and what happens if it is not finished?

These questions demonstrate why clause drafting is closely connected to negotiation. The wording does not simply describe the transaction; it helps determine how responsibility is allocated when uncertainty exists.

Clients should therefore understand the practical effect of important clauses rather than concentrating only on whether wording has been included. A provision that appears to provide protection may allocate risk quite differently once its conditions, limitations and procedures are considered.

This is also where appropriate legal advice becomes particularly important. Real estate professionals can help identify transaction risks, document negotiated business terms within the scope of their role and recognize when a matter warrants legal involvement. Legal interpretation, enforceability and sophisticated legal drafting should be addressed by the client’s lawyer where appropriate.


More Wording Does Not Necessarily Produce a Better Agreement

There can be a temptation to address risk by continually adding clauses. Length, however, should never be confused with quality.

An agreement containing multiple overlapping provisions may create inconsistencies. A clause copied from another transaction may refer to circumstances that do not exist in the current one. Additional wording can also unintentionally conflict with the standard provisions already contained in the agreement.

Effective clause architecture therefore requires discipline. Each provision should have a reason for being there, should fit the particular transaction and should be reviewed in relation to the agreement as a whole.

The strongest agreement is not necessarily the one containing the most protective-sounding language. It is the one that communicates the negotiated arrangement clearly enough that the parties and their advisors can understand how it is intended to operate.


Clear Drafting Can Strengthen Negotiation Rather Than Make It More Difficult

Some parties worry that detailed wording will make negotiations unnecessarily complicated. In practice, uncertainty often causes more difficulty than clarity.

When responsibilities and expectations are addressed during negotiation, the parties have an opportunity to decide whether they accept them before becoming committed. Leaving an issue vague may make an agreement easier to sign in the short term, but that uncertainty has merely been postponed.

A clearly drafted clause can actually make negotiation more productive because it identifies the real issue. The parties can then agree, disagree or modify the proposed allocation of responsibility rather than proceeding on different assumptions.

This is particularly valuable where a transaction contains an unusual condition or obligation. The goal is not to make the agreement adversarial. It is to ensure that agreement actually exists.


Professional Advisory Involves More Than Completing Forms

Real estate representation should involve considerably more than inserting names, dates and prices into standard documents. An important part of professional advisory is helping clients recognize where a transaction contains uncertainty and determining whether that uncertainty needs to be addressed before the agreement becomes binding.

That may involve discussing the purpose of a condition, clarifying negotiated responsibilities, recognizing inconsistencies, identifying issues that should be documented, coordinating with the client’s lawyer or other professionals and helping the client understand the practical consequences of the agreement.

This does not replace legal advice. It complements it by helping ensure that the real estate and operational issues emerging during negotiation are recognized and communicated appropriately.

A client should not simply know what a clause says. Wherever possible, the client should understand why the clause is there, what decision it protects and what responsibility it creates.

Professional Insight: Good representation is not measured by how quickly an agreement can be prepared. The more meaningful measure is whether the agreement accurately reflects the transaction the client believes they are entering and whether important risks have been identified before commitments become difficult to change.


Prevention Is Usually Easier Than Resolving an Interpretation Dispute

Most real estate transactions close without litigation, but disputes that do arise often demonstrate how expensive uncertainty can become. Once parties disagree about what a contract requires, they may need legal advice, correspondence, negotiation, mediation, arbitration or court proceedings to determine their rights.

Even when litigation never occurs, contractual uncertainty can create delay, additional professional costs and considerable frustration.

It is usually easier to address a difficult question while the parties are negotiating and still have the ability to clarify their agreement than after a problem has occurred. Clear documentation will not eliminate every disagreement because no contract can anticipate every possible circumstance. It can, however, substantially reduce the number of disputes caused simply because the parties began with different understandings.

That is one of the practical lessons behind careful clause drafting: prevention generally costs far less than interpretation after the fact.


The Best Clauses Leave Fewer Important Questions Unanswered

Good real estate agreements do not need to anticipate every conceivable problem. They do need to address the material issues that are reasonably foreseeable in the transaction and express the parties’ agreement with sufficient clarity to guide what happens next.

For buyers and sellers, this can mean carefully structured conditions, clearly documented inclusions, appropriate timelines and understandable obligations. For landlords and tenants, it can mean clear allocation of operating costs, repair responsibilities and use requirements. For commercial and industrial purchasers, it can involve more extensive due diligence, environmental, financing and operational provisions.

In every case, the underlying objective is the same. The contract should reduce uncertainty rather than create it.

The strongest clauses are therefore not necessarily the longest or the most complicated. They are the provisions that accurately communicate what the parties have agreed upon, allocate responsibility intentionally and leave as few material questions as reasonably possible when the agreement later needs to be relied upon.

That is why careful clause drafting should be viewed not merely as document preparation, but as an important part of professional real estate advisory, transaction governance and risk management.

Guidance for Smarter Real Estate Decisions.

This article is provided for general information purposes only and is not intended as legal advice. Contractual rights, obligations and enforceability depend upon the particular wording and circumstances of a transaction. Buyers, sellers, landlords, tenants and investors should obtain independent legal advice where appropriate, particularly where contractual wording creates significant legal, financial or operational consequences.


Written by Rodney Harvey, Broker of Record at Konfidis, Brokerage providing advisory-focused commercial, industrial, investment, and real estate brokerage services across Oshawa, Durham Region, and Ontario.


Continue Building Your Transaction Knowledge

You may also find these articles helpful:

👉 Clause Architecture: Best Practices for Structuring Clear, Enforceable, and Operationally Effective Clauses
👉 Typical Conditions in Ontario Real Estate Transactions
👉 Common Litigation Issues in Agreements of Purchase and Sale
👉 What Real Estate Litigation Teaches Buyers in Ontario
👉 Why Conditional Clauses Matter in Ontario Real Estate
👉 Contracts and Clauses You May See in Ontario Real Estate Transactions
👉 How Unclear Wording Creates Financial, Operational, and Relationship Risk


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