Common Litigation Issues in Agreements of Purchase and Sale

July 23, 2026

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An Agreement of Purchase and Sale is often viewed as the finish line of a successful negotiation. In reality, it is the beginning of a legally binding relationship between buyer and seller.

Most transactions proceed exactly as intended. However, when disputes do arise, they rarely stem from a single dramatic event. More often, litigation begins with a series of small assumptions, overlooked details, rushed decisions, or poorly documented expectations that gradually compound as the transaction progresses.

“One of the most valuable aspects of professional real estate advisory is helping clients identify and manage those issues before they become legal disputes.”

Litigation Usually Begins Long Before Anyone Calls a Lawyer

When people think about litigation, they often picture a courtroom.

In practice, most real estate disputes begin weeks or even months earlier.

Perhaps a condition was drafted too broadly. A financing approval was assumed rather than confirmed. An important conversation was never documented. A property issue was misunderstood, or one party believed something had been promised that never became part of the written agreement.

By the time legal counsel becomes involved, the underlying problem has often existed for quite some time.

The goal should never be preparing for litigation.

The goal is structuring the transaction so litigation is less likely to occur.

Every Agreement Deserves Careful Thought

An Agreement of Purchase and Sale is much more than a purchase price and a closing date.

It establishes the rights, obligations, timelines, conditions, representations, and responsibilities that will govern the transaction from acceptance through closing.

Every provision should support a common understanding between the parties. When expectations differ, even well-intentioned buyers and sellers can find themselves in disagreement.

Clear drafting reduces uncertainty. Ambiguous drafting often creates it.

Financing Is Never Just a Formality

Many buyers begin the purchasing process with financing already discussed or pre-approved.

However, experienced advisors understand that financing approval often depends upon much more than an initial conversation with a lender.

Income verification, property valuation, lender underwriting requirements, market conditions, debt service ratios, and the property’s intended use can all influence the lender’s final decision.

Assuming financing is guaranteed can expose buyers to significant contractual consequences if they are unable to complete the purchase. Financing conditions should be approached as an important risk-management tool rather than an obstacle to completing the transaction.

Due Diligence Should Never Be Rushed

Competitive markets sometimes encourage buyers to shorten investigations or waive conditions altogether.

While that strategy may strengthen an offer in some circumstances, it also reduces opportunities to verify important information before becoming firmly committed.

Questions relating to zoning, permits, title, environmental matters, tenancy, property condition, operational suitability, or future redevelopment potential deserve thoughtful consideration before conditions are removed.

Due diligence is not about delaying decisions.

It is about making informed decisions.

Documentation Often Determines How Disputes Are Resolved

One of the most common themes found in real estate disputes is not dishonesty—it is misunderstanding.

Conversations are remembered differently. Expectations evolve. Verbal assurances are interpreted differently by each party.

Well-organized documentation provides clarity.

Important discussions, negotiated terms, amendments, notices, and instructions are generally best confirmed in writing so that everyone shares the same understanding throughout the transaction.

Commercial Transactions Introduce Additional Complexity

Commercial, industrial, and investment transactions frequently involve additional layers of analysis.

Existing leases, environmental reports, operating costs, tenant obligations, zoning compliance, redevelopment opportunities, financing structures, and operational requirements may all influence the transaction.

As complexity increases, so does the importance of disciplined due diligence, thoughtful drafting, and careful transaction management.

Successful commercial transactions are rarely built on assumptions. They are built on information.

Communication Is One of the Most Effective Risk Management Tools

Many disputes are not caused by legal issues alone.

They arise because communication gradually deteriorates.

Questions go unanswered. Expectations become unclear. Small concerns remain unresolved until they become much larger problems.

Professional communication involves more than exchanging emails. It means confirming instructions, documenting important decisions, clarifying responsibilities, and ensuring that every participant understands both the transaction and their obligations.

Good communication rarely attracts attention.

Poor communication often becomes evidence.

Prevention Is Almost Always Less Expensive Than Litigation

Most buyers and sellers will never become involved in a lawsuit.

Fortunately, that is exactly the objective.

Careful planning, clear documentation, realistic expectations, and thoughtful professional guidance significantly reduce the likelihood of disputes while helping transactions proceed with greater confidence.

The most successful real estate transactions are not simply those that close.

They are the ones in which buyers and sellers understand their obligations, make informed decisions, and complete the transaction without unnecessary conflict.

Final Thoughts

Every Agreement of Purchase and Sale creates legal and financial obligations that deserve careful consideration.

Whether purchasing a first home, acquiring an investment property, or negotiating a complex commercial transaction, the principles remain remarkably consistent. Ask good questions. Verify important information. Document expectations clearly. Take the time to understand both the opportunities and the risks before making commitments.

Thoughtful preparation cannot eliminate every uncertainty, but it can prevent many of the misunderstandings that ultimately lead to disputes.

Guidance for Smarter Real Estate Decisions.


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.


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