Hidden Risks in Assignment Sales

April 26, 2026

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Assignment sales can create opportunities for both buyers and sellers, particularly in pre-construction condominium and investment transactions. They can also create risks that are easy to underestimate because the transaction may initially look similar to an ordinary resale.

The difference is that an assignment buyer is usually not buying a completed property directly from the original purchaser. The buyer is taking over the original purchaser’s contractual position under an Agreement of Purchase and Sale with the builder. That means the transaction involves more than the price negotiated between the assignor and assignee. The original builder agreement, amendment schedules, assignment restrictions, tax treatment, financing requirements, occupancy provisions and future closing obligations can all affect whether the transaction ultimately makes sense.

For that reason, I think assignment transactions are best approached by asking a broader question before focusing on price:

What exactly am I taking over, and what obligations will remain with me after the assignment is completed?


The Original Builder Agreement Is the Starting Point

In a typical assignment transaction, the original purchaser, known as the assignor, transfers their rights and obligations under the builder’s Agreement of Purchase and Sale to a new purchaser, known as the assignee. The assignee then steps into that contractual position and, subject to the builder’s requirements, becomes responsible for completing the purchase when the project reaches final closing.

That structure is important because the assignment cannot be properly understood by looking only at the assignment agreement itself.

The original builder agreement may restrict assignments, require written consent, impose an assignment fee, limit advertising or give the builder broad discretion over whether an assignment can proceed. There may also be occupancy provisions, amendment agreements or schedules that materially change the purchaser’s rights and obligations.

This is why I would not treat the builder’s approval as a routine administrative step. It is part of the transaction structure.

Before an assignor markets the property or an assignee commits funds, the parties should understand whether the assignment is permitted, what conditions the builder has imposed and whether there are additional costs or restrictions attached to that approval.

Professional Insight

In an assignment sale, the buyer is not simply acquiring an opportunity to own the property. The buyer is assuming a contractual position created earlier, sometimes years earlier, under terms they did not originally negotiate.


Tax and Financing Can Change the Economics of the Deal

Assignment transactions can also create tax consequences that are very different from what buyers and sellers expect from a conventional resale.

GST/HST treatment can depend on the structure of the assignment, the assignor’s original intention, the assignee’s intended use, rebate eligibility and other facts specific to the transaction. In some situations, HST may apply to amounts received by the assignor, rebate eligibility may change, or the assignee may inherit obligations that were not obvious when the assignment price was negotiated.

Because those issues can materially affect the net result for both sides, I think tax treatment should be examined before the economics of the assignment are treated as settled. A price that appears attractive before tax may look quite different after HST, rebate consequences and closing adjustments are properly considered.

Financing deserves the same level of attention.

Assignment purchases are not always financed in the same way as conventional resale transactions. Some lenders restrict assignment financing, require larger down payments, impose additional underwriting requirements or may not fund until certain builder or registration conditions have been satisfied.

The original purchaser may have obtained financing years earlier, but that does not mean the assignee will receive the same terms or even that the property will qualify for the expected amount at final closing.

Interest rates, appraised value, lender policies and the buyer’s own financial circumstances can all change between the assignment date and the builder’s final closing. The longer the period between those two events, the greater the possibility that the financing assumptions made at the time of assignment will no longer hold.

This is why an assignment buyer should be cautious about treating financing as complete simply because the current transaction appears affordable.


Delays Can Affect Much More Than the Closing Date

Pre-construction properties are especially vulnerable to timing uncertainty.

Construction delays, interim occupancy, registration delays and changing completion schedules can all move the final closing date significantly.

For an owner-occupier, that can create practical issues around accommodation, moving and financing. For an investor, the effect can be broader because the timing may influence rental plans, carrying costs, tax treatment and the expected return on the investment.

Interim occupancy can be particularly misunderstood. A buyer may receive possession of the unit before the condominium corporation is registered and before final title transfer occurs. During that period, the buyer may be responsible for occupancy fees while still waiting for final closing.

A delay therefore is not simply an inconvenience.

It can change the timing of mortgage funding, rental income, carrying costs and other obligations that were built into the original investment analysis.


Market Value Can Move Before the Buyer Reaches Final Closing

Another important feature of assignment transactions is that the buyer may commit to the assignment long before the builder completes the final sale.

During that period, market conditions can change materially.

Property values can rise or fall. Interest rates can change. Lending requirements may tighten. Buyer demand may weaken. An appraisal completed closer to closing may produce a value that is different from the amount the assignee agreed to pay.

If the value declines, the buyer may face an appraisal shortfall or financing gap that has to be covered with additional cash. At the same time, higher interest rates or tighter underwriting standards may increase the monthly carrying cost.

This is one reason I believe assignment purchases should be evaluated with more conservative assumptions than simply relying on recent appreciation.

The investment needs to make sense not only under current market conditions, but also under a reasonable range of conditions that could exist when final closing eventually occurs.

Professional Insight

An assignment buyer is often making today’s decision about a closing that may occur much later. The longer that period becomes, the more important it is to test whether the transaction remains workable if values, interest rates or lending conditions change.


The Assignment Price Is Not the Total Closing Cost

Assignment buyers can also underestimate the amount of money required to complete the transaction because the negotiated assignment price receives most of the attention.

The builder’s closing statement may contain additional obligations arising from the original Agreement of Purchase and Sale. These can include assignment fees, development charges, utility connection costs, occupancy fees, HST adjustments, levies and other adjustments. Some agreements may contain caps on certain closing costs, but those caps may not apply to every charge.

The assignee may also be responsible for reimbursing the assignor for deposits already paid to the builder, depending on how the assignment has been structured.

That can create a much larger immediate cash requirement than the buyer initially expects.

For that reason, I would want an assignment buyer to understand the original builder disclosure documents, amendments and adjustment provisions before treating the negotiated assignment amount as the cost of the purchase.

The more useful question is not simply, “What am I paying the assignor?”

It is “What total amount will I need to contribute between the assignment, occupancy and final closing?”


The Documents Need to Work Together

Assignment transactions involve several contractual relationships at the same time.

There is the original Agreement of Purchase and Sale with the builder, the assignment agreement between the assignor and assignee, the builder’s approval, any amendment schedules and the closing documentation that will eventually govern the transfer of title.

Those documents need to work together.

If one document assumes something that another document does not permit, the parties can end up with financing complications, disputes over responsibility or difficulty completing the transaction.

This is why legal review is particularly important in assignment transactions. The REALTOR® can help identify the commercial and transaction issues that need to be examined, but the legal effect of the agreements and the allocation of liability should be reviewed by appropriate legal counsel.

The same principle applies to tax and accounting issues. Where GST/HST, rebates or investment treatment may affect the transaction, those questions should be addressed by the appropriate tax or accounting professional before the parties rely on an assumed outcome.


Investors Should Be Careful About Building the Decision Around Appreciation

Assignment transactions can be attractive to investors because they create the possibility of benefiting from appreciation before the property reaches final closing.

That can certainly happen.

The difficulty arises when future appreciation becomes the primary reason the transaction appears viable.

An investor may assume that values will continue to rise, that the unit can be rented at a particular amount, that financing will remain available or that the property can be resold quickly if circumstances change.

Those assumptions may prove correct, but they should still be tested.

A more disciplined analysis considers the buyer’s ability to carry the property, the financing required at final closing, realistic rental income, closing costs, taxation and the possibility that market conditions may be less favourable than expected.

If the transaction only works when every optimistic assumption is achieved, the investment carries considerably more risk than it may initially appear to have.

That does not mean assignment purchases should be avoided.

It means they should be approached as business decisions rather than as a simple bet on continued appreciation.


Assignment Sales Require a Different Kind of Due Diligence

The most important difference between an assignment and a conventional resale is that the buyer is stepping into an existing contractual relationship.

That makes the due diligence broader.

The buyer needs to understand the property, but also the builder agreement, the assignment rights, the future closing obligations, financing, tax treatment, occupancy timing and the total cash required to complete the transaction.

For the assignor, the same care is important because assigning the agreement does not necessarily eliminate every obligation automatically. The assignment agreement and builder consent need to make clear what responsibilities are being transferred and what exposure, if any, remains with the original purchaser.

A well-structured assignment should therefore bring together legal, financing, tax and real estate advice rather than treating each issue as an isolated step.

The objective is not to make the transaction unnecessarily complicated. It is to understand the complexity that already exists before the parties become committed to it.


Understand the Contractual Position Before You Buy or Sell It

Assignment sales can create legitimate opportunities, particularly where market conditions, timing or personal circumstances have changed since the original purchase agreement was signed.

They can also expose buyers and sellers to risks that are very different from those found in a traditional resale transaction.

The assignment rights may be restricted. The tax treatment may be more complicated than expected. Financing may change before final closing. Delays may increase carrying costs, and the final builder adjustments may create additional cash requirements. Market values may also move significantly before title is ultimately transferred.

None of those issues automatically makes an assignment transaction unsuitable.

They simply mean that the decision should be based on a complete understanding of the contractual position being transferred rather than on the assignment price alone.

For buyers, the question is whether the rights being acquired, the obligations being assumed and the future financial commitment still support the purchase.

For sellers, the question is whether the assignment can be completed on terms that properly transfer the contractual position and address the remaining obligations.

That is the kind of analysis that should take place before the assignment itself becomes another commitment that is difficult or expensive to reverse.

For me, professional advisory is about providing clients with the information they need to make informed decisions, because smarter real estate decisions lead to better outcomes.


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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