Executive Summary: Key Legal and Evidentiary Issues

• Validity of the Signed Agreement versus the earlier Unsigned Agreement, focusing on an added, uninitialed Schedule “A” clause requiring mutual agreement to advance the closing date
• Objective test for contractual assent and whether the parties were ad idem on the closing acceleration clause despite missing initials on the handwritten modification
• Impact of the purchaser’s failure to close on the scheduled closing date and whether the vendor was “ready, willing and able” to complete the transaction
• Relevance of Real Estate Council of Ontario (RECO) disciplinary findings against agents to the enforceability of the Agreement of Purchase and Sale between the parties
• Proper calculation of vendor’s damages in a failed real estate transaction, including loss of bargain and carrying costs, and the treatment of the deposit as a credit toward damages
• Application of summary judgment principles under Rule 20 and whether there was any genuine issue requiring a trial on liability or damages

Factual background and the failed real estate transaction

The dispute in Potz v. Pietrangelo, 2026 ONSC 1405, arises from a failed residential real estate transaction in Innisfil, Ontario. The vendor, Allen Potz, owned the property and initially agreed on October 28, 2021 to sell it to a purchaser, Maurizio Bruno, for $645,000 under an Agreement of Purchase and Sale (APS). The APS called for an initial deposit of $20,000 and a closing date of August 2, 2022. Mr. Potz swore that, to the best of his knowledge, Mr. Bruno provided the agreed deposit. Two versions of the key contractual language existed. An earlier version, signed only by Mr. Bruno (the Unsigned Agreement), contained a Schedule “A” clause giving the buyer the right to advance the completion and title search dates up to 120 days with 20 days’ written notice. A later version, signed and initialed by both Mr. Potz and Mr. Bruno (the Signed Agreement), contained the same clause but added the words “(Must be mutually agreed upon by both Seller and Buyer)” to the closing acceleration provision. This added language appeared in a different font style and size and was not initialed by either party. The central fight in the case was whether that added proviso was part of the binding bargain.

How the defendant became the sole purchaser

The defendant, Linda Pietrangelo, was a friend of Mr. Bruno and later became involved as a buyer. She is a mortgage broker with about 10 years’ experience and testified that she knew generally how purchase and sale agreements operate and that their terms and conditions govern the sale. She was familiar with the Unsigned Agreement and believed, incorrectly, that the Signed Agreement contained the earlier version of the closing acceleration clause without the added mutual-consent language. On January 27, 2022, the parties executed an OREA Form 120 Amendment to the APS inserting Ms. Pietrangelo as an additional buyer. Immediately above the signature lines, the form stated: “All other Terms and Conditions in the aforementioned Agreement to remain the same.” Mr. Potz and Mr. Bruno signed on January 27, 2022; Ms. Pietrangelo had signed the amendment on January 19, 2022. During cross-examination, she acknowledged that by signing this amendment she became a party to the Signed Agreement, though she admitted she did not review that agreement and assumed its contents mirrored the earlier version. A second OREA Form 120 Amendment followed in May 2022. That amendment deleted Mr. Bruno as purchaser, again containing the sentence that all other terms and conditions in the APS remained the same. Mr. Potz signed on May 8, 2022; Mr. Bruno and Ms. Pietrangelo signed on May 6, 2022. In her cross-examination, Ms. Pietrangelo accepted that, after this second amendment, she was the sole purchaser under the transaction and understood that only the identity of the purchaser had changed, while the balance of the APS terms, including Schedule “A”, remained unchanged.

Attempts to advance closing and the ultimate default

Before the scheduled August 2, 2022 closing date, market conditions worried Ms. Pietrangelo. Through her real estate agent, she asked to advance the closing date, believing she was relying on the original acceleration clause. She testified that this request was made in April 2022 for a June 2022 closing. However, because the Signed Agreement’s version of the clause required that any advance of the closing date be “mutually agreed upon by both Seller and Buyer,” the vendor was not obliged unilaterally to accept an earlier closing. In his affidavit, Mr. Potz explained that he refused the request partly because he used the property as a short-term rental on Airbnb and already had bookings confirmed and paid up to the August 2, 2022 closing date. In July 2022, facing financial difficulties, Ms. Pietrangelo proposed to renegotiate the transaction. Her lawyer advised the vendor’s lawyer that she wished to reduce the purchase price to $560,000, purportedly reflecting market value, and sought a six-week extension of closing. The vendor refused, holding Ms. Pietrangelo to the original bargain. On August 2, 2022, Mr. Potz’s real estate solicitor emailed Ms. Pietrangelo’s solicitor confirming that the vendor was ready, willing and able to close in accordance with the APS. Despite this, Ms. Pietrangelo did not complete the transaction on the agreed date.

Mitigation efforts and resale of the property

Following the failed closing, the vendor moved promptly to mitigate his loss. On or about August 3, 2022, one day after the missed closing, he re-listed the property at the original contract price of $645,000, attempting to obtain the same or a similar offer to the Bruno/Pietrangelo transaction. The property remained listed at that price for about four weeks. On September 1, 2022, a new buyer offered $552,000, which Mr. Potz accepted, and the transaction closed on September 29, 2022. This resale price set the measure of his “loss of bargain,” as Ontario law generally assesses damages in failed real estate transactions by the difference between the original contract price and the eventual resale price, provided the resale is an arm’s-length market transaction. The vendor also incurred carrying costs during the extra period he held the property from the original closing date until the actual resale closing — items such as mortgage payments, utilities, insurance and telecommunications, which he claimed as consequential damages.

Regulatory complaints and RECO decisions

Parallel to the civil dispute, Ms. Pietrangelo filed complaints with the Real Estate Council of Ontario (RECO) against the listing agent and Mr. Bruno’s agent. She alleged that the listing agent had unilaterally modified the closing-date clause in the APS without proper consent from the parties. In February 2024, RECO issued decisions addressing both agents’ conduct. With respect to the listing agent, RECO found that the agent had modified an existing clause on sign-back, that neither party initialed the change, and that the agent had not fully met the expected standard of conduct. RECO emphasized that modifications to an agreement should be clearly structured, explained, and supported by initials to signify consent. The agent received a formal Warning and was ordered to complete a legal issues course at the Real Estate Institute of Canada. RECO issued similar findings regarding Mr. Bruno’s agent, stressing the duty of registrants to inform clients of fundamental changes and to review counteroffers for modifications potentially adverse to client interests. Again, RECO noted that neither party had initialed changes to the closing acceleration clause and imposed a Warning and mandatory educational requirements. While these RECO outcomes supported the criticism that the agents handled the clause poorly and inconsistently with professional standards, the Superior Court held that they did not answer the separate legal question of whether the Signed Agreement, including the uninitialed mutual-consent wording, was nonetheless binding as between the vendor and purchaser.

Contractual analysis and the binding effect of the Signed Agreement

The central legal issue was which agreement governed the parties’ rights: the Unsigned Agreement, signed only by Mr. Bruno and containing a broader unilateral right to advance closing, or the Signed Agreement, executed by both vendor and purchaser, and containing the added phrase that advancing closing “must be mutually agreed upon by both Seller and Buyer.” Ms. Pietrangelo’s defence was that the more buyer-friendly Unsigned Agreement was binding because the additional words in Schedule “A” were never initialed and thus never truly agreed. She argued that, under this earlier version, the vendor was in breach for refusing to advance the closing date, and that she was entitled to the return of her $20,000 deposit. The court approached the problem using orthodox contract principles focusing on objective manifestations of mutual assent rather than subjective understanding. Relying on prior authorities such as J.M.B. Cattle v. Kaufman and the Supreme Court’s reasoning in Saint John Tug Boat Co. v. Irving Refining, the associate justice emphasized that a contract is formed when the parties’ outward conduct would lead a reasonable person, apprised of all the circumstances, to conclude that they had reached agreement on the essential terms. Mutual assent is judged by what the parties said and did, not their uncommunicated internal assumptions. Applying that test, the court held that the Signed Agreement was the only valid and binding contract. It was signed by both vendor and original purchaser, and contained the mutual-consent wording in Schedule “A”. On two later occasions, months after execution, Ms. Pietrangelo herself signed OREA Form 120 Amendments explicitly stating that all other terms and conditions of the APS were to remain the same. By doing so, she objectively adopted the terms of the Signed Agreement, including the altered closing acceleration clause. There was no evidence that she or Mr. Bruno ever advised the vendor, prior to the failed closing, that they believed the mutual-consent phrase was not part of the deal. Her failure to notice the added wording, despite her professional experience and opportunity to review the document, was characterized as her own oversight, not a defect in contract formation.

Summary judgment and rejection of the purchaser’s defences

The vendor brought a motion for summary judgment, asking the court to decide the dispute without a full trial under Rule 20 of the Rules of Civil Procedure. The court recited the modern approach from Hryniak v. Mauldin, noting that summary judgment is appropriate where the record allows the court to fairly resolve the dispute and where the process is proportionate, timely and cost-effective. The associate justice concluded that there was no genuine issue requiring a trial. The evidence necessary to decide both the validity of the APS and the breach was fully available in the affidavits and cross-examinations. Importantly, the associate justice found it was unnecessary to rely on the enhanced fact-finding powers (weighing credibility, drawing inferences) reserved for judges under Rule 20.04(2.1) and (2.2), which associate judges cannot use, because the documentary record and admissions were clear. The court rejected the series of case authorities relied on by Ms. Pietrangelo, including foreign and unproduced cases and decisions about good faith and unilateral changes to contracts, on the basis that their facts were distinguishable and did not undermine the conclusion that the Signed Agreement was binding. Having determined that the vendor had not agreed to any early closing and had merely exercised his contractual right to insist on the August 2, 2022 date, the court held that it was Ms. Pietrangelo who breached the contract by failing to close. Her entire defence depended on treating the Unsigned Agreement as controlling; once that theory was rejected, she could not show a realistic prospect of success at trial.

Damages calculation, treatment of the deposit, and final outcome

After finding liability in the vendor’s favour, the associate justice turned to the assessment of damages using the established Ontario framework for failed real estate transactions. The court accepted that the resale to the September 2022 buyer for $552,000 was an arm’s-length market transaction and that the proper measure of the vendor’s loss of bargain was the difference between the original contract price of $645,000 and the eventual sale price, yielding $93,000 in damages. The vendor also proved carrying costs of $3,965.12 incurred between the failed August 2 closing and the September 29 resale closing, including mortgage payments, utilities, property insurance, and telecommunications, all causally linked to the delay caused by the breach. The court held that these were recoverable consequential losses. However, the associate justice declined to award the claimed $7,500 in lost Airbnb income for the post-August 2 period. The reasoning was that damages in contract aim to put the innocent party in the position they would have occupied if the contract had been performed. If the deal had closed as agreed on August 2, 2022, the vendor would not have had the property available for Airbnb rentals between that date and September 29, 2022. Awarding those rentals would therefore overcompensate him and contradict the basic compensatory principle. On the question of the $20,000 deposit, the court applied the Court of Appeal’s reasoning in Azzarello v. Shawqi. Because the APS stated that the deposit was to be “credited toward the purchase price” on completion, the deposit was treated as part-payment that must be credited against the vendor’s damages rather than an additional forfeited sum. Accordingly, the total damages of $96,965.12 (comprised of $93,000 in loss of bargain plus $3,965.12 in carrying costs) were reduced by the $20,000 deposit, resulting in a net monetary judgment of $76,965.12. The court ordered judgment in favour of the plaintiff, Mr. Potz, in the amount of $76,965.12, together with pre-judgment and post-judgment interest under the Courts of Justice Act. The precise dollar value of interest and any subsequent costs award were not fixed in the reasons, as the parties were invited to make brief written submissions if they could not agree on costs.