Yes! You can use AI to fill out Form 120, Amendment to Agreement of Purchase and Sale
OREA Form 120 is a legal document used in Ontario real estate transactions to make changes to an existing Agreement of Purchase and Sale. It is essential for formally recording any agreed-upon modifications, such as adjustments to the price, closing date, or other conditions, ensuring the changes are legally binding for both the buyer and seller. Today, this form can be filled out quickly and accurately using AI-powered services like Instafill.ai, which can also convert non-fillable PDF versions into interactive fillable forms.
Form 120 is part of the
purchase agreement forms and purchase and sale forms categories on Instafill.
Form Complexity Index
Moderate
59 / 100
| Fillable fields | 57 |
| Pages | 2 |
| Fields per page | 28 |
| Sections | 24 |
| Conditional rules | 3 |
| Tables & lists | 3 |
| Instruction pages | — |
| Instafill Form ID | IF-FORM-120-AMENDMENT-TO-AGREEMENT-OF-PURCHASE-AND-SALE |
Form 120 has a moderate Form Complexity Index of 59/100 — 57 fillable fields across 2 pages. Instafill’s AI completes it accurately in under a minute.
Form specifications
| Form name: | Form 120, Amendment to Agreement of Purchase and Sale |
| Number of fields: | 57 |
| Number of pages: | 2 |
| FCI: | Moderate (59/100) |
| Field instructions: | Form 120 Instructions |
| Filled form examples: | Form 120 Examples |
| Language: | English |
Our AI automatically handles information lookup, data retrieval, formatting, and form filling.
It takes less than a minute to fill out Form 120 using our AI form filling.
Securely upload your data. Information is encrypted in transit and deleted immediately after the form is filled out.
Instafill Demo: How to fill out PDF forms in seconds with AI
How to Fill Out Form 120 Online for Free in 2026
Are you looking to fill out a FORM 120 form online quickly and accurately? Instafill.ai offers the #1 AI-powered PDF filling software of 2026, allowing you to complete your FORM 120 form in just 37 seconds or less.
Follow these steps to fill out your FORM 120 form online using Instafill.ai:
- 1 Navigate to Instafill.ai and upload or select OREA Form 120.
- 2 Provide the details of the original Agreement of Purchase and Sale, including the buyer, seller, property address, and agreement date.
- 3 Clearly specify the clauses or text to be deleted from the original agreement and enter the new clauses to be inserted.
- 4 Define the irrevocability period for the amendment offer, stating who is making the offer and the exact deadline for acceptance.
- 5 Review all entered information, including party details, property information, and the specific amendments, to ensure accuracy.
- 6 Electronically sign the document and invite the other parties, such as the buyer/seller, witnesses, and any consenting spouses, to add their signatures.
- 7 Download the fully executed amendment and distribute copies to all relevant parties, including your lawyer and real estate agent.
Our AI-powered system ensures each field is filled out correctly, reducing errors and saving you time.
Why Choose Instafill.ai for Your Fillable Form 120 Form?
Speed
Complete your Form 120 in as little as 37 seconds.
Up-to-Date
Always use the latest 2026 Form 120 form version.
Cost-effective
No need to hire expensive lawyers.
Accuracy
Our AI performs 10 compliance checks to ensure your form is error-free.
Security
Your personal information is protected with bank-level encryption.
Frequently Asked Questions About Form 120
Form 120 has a Form Complexity Index of 59 out of 100, placing it in the moderate complexity tier. This score is calculated deterministically from the form’s own structure using Instafill’s published Form Complexity Index methodology, so it can be reproduced and independently verified — it is not a subjective estimate.
For Form 120 specifically, the score reflects 57 fillable fields across 2 pages, grouped into 24 sections, and 3 conditional fields that only apply depending on earlier answers, 3 tables or repeating lists. The number of fields is the largest factor in the base score (weighted 36%), followed by how difficult those fields are to complete based on their type, where free-text and signature fields count for more than simple checkboxes (26%). The number of pages that actually contain fields (15%), the amount of conditional “fill-only-if” logic (16%), and how many sections the form is divided into (7%) account for the rest of the base. On top of that base, the index adds points for tables and repeating lists, bundled instruction pages, and dense page layouts — capturing difficulty the base alone can miss.
In practical terms, a moderate score means the form takes real effort: there are enough fields, pages and rules that errors are easy to make by hand. Instafill removes that effort entirely: our AI reads your information, maps each value to the correct field — including the conditional ones — and completes Form 120 accurately in under a minute, with every field available for you to review before you download. See exactly how the Form Complexity Index is calculated.
This form is used to make official changes to an existing Agreement of Purchase and Sale in Ontario. It is used when both the buyer and seller agree to modify terms such as the price, closing date, or other conditions after the original agreement has been signed.
Both the buyer and the seller must agree to the changes and sign the form for the amendment to be legally binding. It is often prepared by one party's real estate agent for the other party to review and accept.
In the 'Delete' section, you must write the exact wording of the clause from the original agreement that you wish to remove. In the 'Insert' section, you write the new clause or wording that will be added to the agreement.
No, this form only amends the original agreement. The form itself states, 'All other Terms and Conditions in the aforementioned Agreement to remain the same,' meaning the rest of your original contract is still in effect.
The Irrevocability clause sets a firm deadline for the other party to accept the proposed amendment. If they do not sign and accept by the specified date and time, the offer to amend automatically becomes null and void.
You will need the full legal names of the buyer(s) and seller(s), the property address, and the date of the original Agreement of Purchase and Sale. You must also know the exact text of the clauses you wish to delete or insert.
If the property is a matrimonial home, a non-titled spouse may still have legal rights to it. The spousal consent signature ensures they agree to the changes being made to the sale agreement, which is a requirement under Ontario law.
Once signed by all required parties, the amendment becomes a legally binding part of the Agreement of Purchase and Sale. Copies should be sent to both parties' lawyers and brokerages for their records.
Yes, services like Instafill.ai use AI to help you accurately auto-fill form fields, which saves time and helps prevent errors. Always review the completed form with your real estate professional or lawyer before signing.
You can use a service like Instafill.ai to complete the form digitally. Simply upload the form, and the platform will make the fields interactive so you can type your information, sign electronically, and share it.
You can use a tool like Instafill.ai, which can convert flat, non-fillable PDFs into interactive forms. This allows you to easily type your information into the correct fields online without needing to print the document.
Initialing the page confirms that both the buyer and seller have reviewed and acknowledged the contents of that specific page. This is a standard practice to ensure no pages are changed or added after the fact.
This section is used to record the exact time and date that the amendment was finally accepted by all parties. This is critical for legal purposes, as it establishes a clear timeline for the contractual change.
Providing your lawyer's details authorizes the brokerage to forward a copy of the accepted amendment directly to your legal representative. This ensures your lawyer is aware of all changes to the agreement and can advise you accordingly.
Compliance Form 120
Validation Checks by Instafill.ai
1
Chronological Date Integrity
This validation ensures that all dates on the form follow a logical sequence. The date of the original Agreement of Purchase and Sale must precede all dates on this amendment. Furthermore, the final acceptance date must occur on or before the irrevocability deadline. This is critical to ensure the amendment is legally valid and was accepted within the specified timeframe, preventing disputes over expired offers.
2
Acceptance Prior to Irrevocability Deadline
This check specifically verifies that the 'Confirmation of Acceptance' date and time are not later than the 'Irrevocability' date and time. The irrevocability clause creates a firm deadline by which the offer to amend must be accepted. If acceptance occurs after this deadline, the offer is considered null and void, and the amendment is not binding.
3
Amendment Content Presence
This validation ensures that at least one of the 'Delete' or 'Insert' text areas is populated. An amendment form must contain a change to the original agreement to have any purpose. Submitting a blank amendment is an error, and this check prevents the processing of pointless or accidental submissions, ensuring user intent is captured.
4
Irrevocability Clause Completeness
This check confirms that if the irrevocability clause is used, all its components are filled: the party making it irrevocable ('Seller' or 'Buyer'), the date, and the time (including a.m./p.m.). An incomplete clause creates ambiguity about the offer's deadline, potentially leading to legal challenges. A failed validation would require the user to complete all parts of the clause before submission.
5
Party Name Consistency Across Form
This validation cross-references the Buyer and Seller names provided at the top of the form with the names entered in the signature and acknowledgement sections. This ensures the same legal entities are identified throughout the document, preventing ambiguity about who is party to the amendment. A mismatch could invalidate the document or indicate a data entry error that needs correction.
6
Original Agreement Date Validity
This check ensures the provided day, month, and year for the original Agreement of Purchase and Sale constitute a valid calendar date. It prevents impossible dates like 'April 31' or 'February 30'. This is important for accurately referencing the legal document being amended; an incorrect reference could render the amendment void.
7
Required Party and Property Identification
This validation confirms that the 'Buyer', 'Seller', and 'Property Address' fields on page 1 are not empty. These fields are fundamental to identifying the parties and the subject of the contract being amended. Without this core information, the amendment is legally meaningless and cannot be tied to a specific transaction.
8
Lawyer Email Address Format
This check verifies that the values entered into the 'Buyer's Lawyer Email' and 'Seller's Lawyer Email' fields follow a standard email format (e.g., '[email protected]'). This is crucial for ensuring reliable communication and document delivery between legal representatives. An invalid format would trigger an error, prompting the user to correct the email address to ensure messages are not lost.
9
Conditional Spousal Consent Validation
This check ensures that if a name is entered in the 'Spouse Consenting Party Name' field, then the corresponding 'Spouse Consent Date' and 'Spouse Consent Witness Name' fields are also filled. Spousal consent can be a legal requirement for the disposition of a matrimonial home. This validation enforces the complete documentation of that consent when it is indicated as being given.
10
Signature and Date Pairing
This validation ensures that for every signatory field that is filled (e.g., 'Signatory Name', 'Second Signatory Name'), the corresponding date field ('Signing Date', 'Second Signatory Date') is also filled. A signature without a date can create legal ambiguity about when the agreement was executed. This check enforces completeness and helps establish a clear timeline of events.
11
Acknowledgement Date Logic
This check verifies that the 'Acknowledgement Date' for both Buyer and Seller is on or after the 'Confirmation of Acceptance Date'. A party cannot acknowledge receipt of a finalized document before it has been finalized. This maintains the logical flow of the transaction and provides a clear, defensible record of document delivery.
12
Irrevocability Party Specificity
This validation ensures the 'Irrevocable By Party' field contains one of the expected values, specifically 'Seller' or 'Buyer'. This removes any ambiguity as to which party is making the binding offer to amend. If the field is left blank or contains an invalid entry, the terms of the offer are unclear, and the validation should fail.
13
Canadian Telephone Number Format
This check validates that all telephone and fax number fields, such as 'Buyer's Telephone Number' and 'Seller's Lawyer Telephone Number', adhere to a standard North American/Canadian format (e.g., NPA-NXX-XXXX). Proper formatting ensures that the numbers are valid and usable for communication, preventing errors in the contact information. A failed validation would prompt the user to re-enter the number in a recognized format.
Common Mistakes in Completing Form 120
This mistake involves entering the wrong date or an incomplete property address from the original Agreement of Purchase and Sale. It often happens when filers don't have the original document handy and rely on memory. An incorrect reference can create ambiguity or even invalidate the amendment, as it fails to properly link to the contract it intends to modify. Always double-check the date and property description against the original agreement to ensure legal continuity.
Users often write vague or imprecise language in the 'Delete' and 'Insert' sections, which form the core of the amendment. This ambiguity can lead to serious legal disputes over the intended change, as parties may interpret the new terms differently. To avoid this, be extremely specific, quoting the exact text to be deleted and clearly writing the full, unambiguous text to be inserted. Vague terms like 'the usual clause' should never be used.
The full legal names of the Buyer(s) and Seller(s) on this amendment must exactly match those on the original Agreement of Purchase and Sale. People frequently use nicknames, initials, or forget to include all parties listed on the title. This discrepancy can cause legal challenges and delays, particularly during closing, as it creates uncertainty about who is bound by the amendment. Ensure all names are spelled correctly and are identical to the original contract.
This section is often filled out incorrectly by failing to specify the party (Buyer or Seller), the exact time with 'a.m.' or 'p.m.', and a clear date. As this clause makes the amendment a binding offer for a set period, any ambiguity can render the offer void or lead to disputes about when it expired. To prevent this, clearly state who is making the offer and provide a precise, unambiguous deadline. AI-powered tools like Instafill.ai can help format dates and times correctly to avoid such errors.
Each signature from a Buyer, Seller, or consenting Spouse requires a corresponding witness signature. A common error is forgetting the witness entirely or having another party to the contract (like the other buyer) act as a witness, which is invalid. A missing or invalid witness can call the authenticity of the signatures into question and weaken the legal standing of the amendment. Always ensure an independent, third-party witness signs for each party.
If the property is a matrimonial home, the consent of a non-titled spouse may be legally required for any changes to the sale agreement. This section is frequently ignored or left blank when it is applicable. Failing to obtain spousal consent can jeopardize the entire transaction and may lead to the agreement being voided. Always verify if spousal consent is needed and, if so, ensure the section is properly signed, dated, and witnessed.
The form requires the exact time and date of final acceptance to be recorded, which officially makes the amendment binding. Filers often leave this section blank or only partially fill it out. Because the contract states 'Time shall in all respects be of the essence', failing to document the precise moment of acceptance creates legal uncertainty about when the amended terms took effect. This can be critical in disputes over deadlines.
The bottom of the first page includes designated spots for all Buyers and Sellers to initial. This is a simple but frequently missed step that serves as confirmation that all parties have reviewed and acknowledged the proposed changes. Missing initials can be used to argue that a party was not fully aware of the amendment's contents, potentially complicating enforcement. It's a quick check that adds a layer of security to the document.
When there are two or more Buyers or Sellers, the form provides multiple signature and acknowledgement lines for each. A common mistake is for only one of the parties to sign or acknowledge, leaving the others blank. For the amendment to be fully binding on all parties, every individual listed on the original agreement must sign. Using a tool like Instafill.ai can help ensure all required signature fields are identified and addressed, even on complex, non-fillable PDFs it converts to fillable versions.
This form includes sections to provide contact details for both the Buyer's and Seller's lawyers. People often leave this information blank, assuming it's not critical. However, omitting these details can delay crucial communication between legal representatives, slowing down the closing process and making it difficult to resolve any subsequent issues. Providing complete and accurate lawyer information ensures a smoother transaction for everyone involved.
Saved over 80 hours a year
“I was never sure if my IRS forms like W-9 were filled correctly. Now, I can complete the forms accurately without any external help.”
Kevin Martin Green
Your data stays secure with advanced protection from Instafill and our subprocessors
Robust compliance program
Transparent business model
You’re not the product. You always know where your data is and what it is processed for.
ISO 27001, HIPAA, and GDPR
Our subprocesses adhere to multiple compliance standards, including but not limited to ISO 27001, HIPAA, and GDPR.
Security & privacy by design
We consider security and privacy from the initial design phase of any new service or functionality. It’s not an afterthought, it’s built-in, including support for two-factor authentication (2FA) to further protect your account.
Fill out Form 120 with Instafill.ai
Worried about filling PDFs wrong? Instafill securely fills form-120-amendment-to-agreement-of-purchase-and-sale forms, ensuring each field is accurate.
